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Medical Terms

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LDL

LDL: Abbreviation for low-density lipoprotein. This so-called bad cholesterol can build up on artery walls, narrowing the artery and making a heart attack or stroke more likely.

Created: 2024-12-06 13:14:49

Last Updated: 2024-12-06 13:14:49

LED photomodulation

LED photomodulation: Use of a panel of light-emitting diodes (LEDs) to stimulate skin cells and improve the look of the skin.

Created: 2024-12-06 13:14:58

Last Updated: 2024-12-06 13:14:58

LH

LH: Abbreviation for luteinizing hormone, a hormone that controls ovulation in women. In men, luteinizing hormone triggers production of testosterone.

Created: 2024-12-06 13:15:02

Last Updated: 2024-12-06 13:15:02

LVAD

LVAD: Abbreviation for left-ventricular assist device, a surgically implanted pump that augments the pumping action of the left ventricle.

Created: 2024-12-06 13:15:12

Last Updated: 2024-12-06 13:15:12

Labetalol

Labetalol: A beta-blocker used to treat high blood pressure.

Created: 2024-12-06 13:15:16

Last Updated: 2024-12-06 13:15:16

Laboratory

Laboratory: A facility for testing and analyzing biological samples to aid in diagnosis and treatment.

Created: 2024-12-07 17:23:52

Last Updated: 2024-12-07 17:23:52

Lactate Dehydrogenase (LDH) Test

Lactate Dehydrogenase (LDH) Test: A blood test that measures the level of LDH, an enzyme involved in energy production, to assess tissue damage or disease.

Created: 2024-12-06 13:15:24

Last Updated: 2024-12-06 13:15:24

Lacteal Vessels

Lacteal Vessels: Lymphatic vessels found in the small intestine that absorb dietary fats and transport them to the bloodstream.

Created: 2024-12-06 13:15:30

Last Updated: 2024-12-06 13:15:30

Lacteals

Lacteals: Specialized lymphatic vessels in the small intestine that absorb fats and transport them to the bloodstream.

Created: 2024-12-06 13:15:36

Last Updated: 2024-12-06 13:15:36

Lamina

Lamina: A thin layer of bone that forms part of the vertebral arch, protecting the spinal cord.

Created: 2024-12-06 13:15:39

Last Updated: 2024-12-06 13:15:39

Langerhans cells

Langerhans cells: Cells of the immune system that work in the skin to fight infection.

Created: 2024-12-06 13:15:46

Last Updated: 2024-12-06 13:15:46

Langya Henipavirus (LayV)

Langya Henipavirus (LayV): Discovered in 2022, a zoonotic virus causing flu-like symptoms in humans, likely transmitted from small mammals.

Created: 2024-12-06 13:15:53

Last Updated: 2024-12-06 13:15:53

Lansoprazole

Lansoprazole: A proton pump inhibitor used to treat GERD, ulcers, and Zollinger-Ellison syndrome.

Created: 2024-12-06 13:15:57

Last Updated: 2024-12-06 13:15:57

Lanthanum-140

Lanthanum (La): Lanthanum-140 is used in research and tracer studies for various applications in nuclear medicine.

Created: 2024-12-06 13:16:04

Last Updated: 2024-12-06 13:16:04

Laparotomy Sponges

Laparotomy Sponges: Large, absorbent sponges used in abdominal surgery to absorb blood or fluids and keep the surgical area dry.

Created: 2024-12-07 16:52:18

Last Updated: 2024-12-07 16:52:18

Laryngitis

Laryngitis: Inflammation of the larynx (voice box), often causing hoarseness, sore throat, and difficulty speaking.

Created: 2024-12-06 13:16:08

Last Updated: 2024-12-06 13:16:08

Larynx

Larynx: The voice box, located in the neck, that contains the vocal cords and is responsible for producing sound and protecting the airway during swallowing.

Created: 2024-12-06 13:16:11

Last Updated: 2024-12-06 13:16:11

Latanoprost

Latanoprost: An ophthalmic medication used to treat increased intraocular pressure in glaucoma.

Created: 2024-12-06 13:16:13

Last Updated: 2024-12-06 13:16:13

Lateral Epicondylitis

Lateral Epicondylitis: Inflammation of the tendons on the outer side of the elbow, commonly known as tennis elbow.

Created: 2024-12-06 13:16:20

Last Updated: 2024-12-06 13:16:20

Lawrencium (Lr)

Lawrencium (Lr): Created in a laboratory, it has no practical use but is important in research.

Created: 2024-12-06 13:16:28

Last Updated: 2024-12-06 13:16:28

Lead-210

Lead (Pb): Lead-210 is a radioactive isotope of lead found in trace amounts in uranium ores.

Created: 2024-12-06 13:16:36

Last Updated: 2024-12-06 13:16:36

Left Mainstem Bronchus

Left Mainstem Bronchus: The bronchus leading to the left lung, which is narrower and more horizontal than the right mainstem bronchus.

Created: 2024-12-06 13:16:42

Last Updated: 2024-12-06 13:16:42

Legg Calve Perthes Disease

Legg-Calve-Perthes Disease: A condition in children where blood supply to the femoral head is temporarily disrupted, causing bone death.

Created: 2024-12-06 13:17:04

Last Updated: 2024-12-06 13:17:04

Legionella pneumophila

Legionella pneumophila: A Gram-negative bacterium that causes Legionnaires' disease, a severe form of pneumonia.

Created: 2024-12-07 16:52:45

Last Updated: 2024-12-07 16:52:45

Leishmania braziliensis

Leishmania braziliensis: A parasite causing mucocutaneous leishmaniasis, affecting skin and mucous membranes.

Created: 2024-12-06 13:17:11

Last Updated: 2024-12-06 13:17:11

Levetiracetam

Levetiracetam: An anticonvulsant used to treat epilepsy.

Created: 2024-12-06 13:17:15

Last Updated: 2024-12-06 13:17:15

Levodopa

Levodopa: A medication used to treat Parkinsons disease and parkinsonism.

Created: 2024-12-07 14:31:52

Last Updated: 2024-12-07 14:31:52

Levothyroxine

Levothyroxine: A synthetic form of thyroid hormone used to treat hypothyroidism.

Created: 2024-12-06 13:17:20

Last Updated: 2024-12-06 13:17:20

Licensed Practical Nurse (LPN)

Licensed Practical Nurse (LPN): A nurse who provides basic medical care under the supervision of a registered nurse or doctor.

Created: 2024-12-07 17:24:26

Last Updated: 2024-12-07 17:24:26

Ligaments

Ligaments: Strong fibrous tissues that connect bones to other bones, providing stability to joints.

Created: 2024-12-06 13:17:27

Last Updated: 2024-12-06 13:17:27

Ligamentum Flavum

Ligamentum Flavum: A ligament located in the spine that connects adjacent vertebrae.

Created: 2024-12-06 13:17:35

Last Updated: 2024-12-06 13:17:35

Ligase

Ligase: An enzyme that joins two strands of DNA by forming a phosphodiester bond, essential for DNA repair and replication.

Created: 2024-12-06 13:17:38

Last Updated: 2024-12-06 13:17:38

Limb Length Discrepancy

Limb Length Discrepancy: A condition where one limb is shorter than the other, potentially affecting gait and posture.

Created: 2024-12-06 13:17:46

Last Updated: 2024-12-06 13:17:46

Linear Accelerator (LINAC)

Linear Accelerator (LINAC): A machine used in external beam radiotherapy to generate high-energy x-rays or electrons for treating cancer.

Created: 2024-12-06 13:17:53

Last Updated: 2024-12-06 13:17:53

Linkage Disequilibrium

Linkage Disequilibrium: The non-random association of alleles at different loci in a population.

Created: 2024-12-06 13:18:03

Last Updated: 2024-12-06 13:18:03

Lipase Test

Lipase Test: A blood test to measure the level of lipase, an enzyme produced by the pancreas, to evaluate pancreatic health.

Created: 2024-12-06 13:18:10

Last Updated: 2024-12-06 13:18:10

Lipid Panel

Lipid Panel: A blood test that measures cholesterol and triglyceride levels to assess the risk of heart disease.

Created: 2024-12-06 13:18:17

Last Updated: 2024-12-06 13:18:17

Lisfranc Injury

Lisfranc Injury: An injury to the ligaments in the midfoot, often involving fracture or dislocation.

Created: 2024-12-06 13:18:24

Last Updated: 2024-12-06 13:18:24

Lisinopril

Lisinopril: An ACE inhibitor used to treat high blood pressure and heart failure.

Created: 2024-12-06 13:18:27

Last Updated: 2024-12-06 13:18:27

Listeria monocytogenes

Listeria monocytogenes: A Gram-positive bacterium associated with foodborne illness, particularly in pregnant women and immunocompromised individuals.

Created: 2024-12-07 10:55:55

Last Updated: 2024-12-07 10:55:55

Lithium

Lithium: A mood stabilizer used to treat bipolar disorder.

Created: 2024-12-06 13:18:38

Last Updated: 2024-12-06 13:18:38

Lithium-8

Lithium (Li): Lithium-8 is a radioactive isotope of lithium, used in scientific research, particularly in nuclear physics.

Created: 2024-12-06 13:18:34

Last Updated: 2024-12-06 13:18:34

Liver Biopsy Needle

Liver Biopsy Needle: A specialized needle used to remove small samples of liver tissue for diagnosis of diseases such as hepatitis or liver cancer.

Created: 2024-12-07 16:53:27

Last Updated: 2024-12-07 16:53:27

Liver Function Tests (LFT)

Liver Function Tests (LFT): A group of blood tests that measure liver enzymes and other substances to assess the health of the liver.

Created: 2024-12-06 13:18:44

Last Updated: 2024-12-06 13:18:44

Livermorium

Livermorium (Lv): A synthetic element used primarily in research, discovered in the 2000s.

Created: 2024-12-04 09:20:50

Last Updated: 2024-12-04 09:20:50

Loa loa

Loa loa: A filarial worm causing loiasis, characterized by the migration of adult worms through the skin and eye, transmitted by deer flies.

Created: 2024-12-06 13:18:53

Last Updated: 2024-12-06 13:18:53

Lobes of the Lungs

Lobes of the Lungs: The divisions of the lungs, with the right lung having three lobes and the left lung having two lobes.

Created: 2024-12-06 13:19:00

Last Updated: 2024-12-06 13:19:00

Long QT Syndrome

Long QT Syndrome: A genetic disorder that affects the hearts electrical system, leading to abnormal, prolonged QT intervals, which can cause arrhythmias and fainting.

Created: 2024-12-07 14:32:22

Last Updated: 2024-12-07 14:32:22

Loose Bodies

Loose Bodies: Fragments of bone or cartilage floating within a joint, often causing pain or locking.

Created: 2024-12-06 13:19:11

Last Updated: 2024-12-06 13:19:11

Lorazepam

Lorazepam: A benzodiazepine used to treat anxiety and sleep disorders.

Created: 2024-12-06 13:19:14

Last Updated: 2024-12-06 13:19:14

Lordosis

Lordosis: Excessive inward curvature of the spine, commonly affecting the lower back.

Created: 2024-12-06 13:19:19

Last Updated: 2024-12-06 13:19:19

Losartan

Losartan: An angiotensin II receptor blocker used to treat high blood pressure and heart failure.

Created: 2024-12-06 13:19:22

Last Updated: 2024-12-06 13:19:22

Low Dose Rate (LDR) Radiation

Low-Dose-Rate (LDR) Radiation: A form of radiation therapy where radiation is delivered continuously over a longer period, used for prostate cancer and certain gynecological cancers.

Created: 2024-12-06 13:19:32

Last Updated: 2024-12-06 13:19:32

Low dose rate (LDR) brachytherapy

Low-dose rate (LDR) brachytherapy: A form of brachytherapy where a low dose of radiation is delivered over a longer period, often using permanent radioactive seeds.

Created: 2024-12-06 13:19:43

Last Updated: 2024-12-06 13:19:43

Lumbar Spine Lateral Protocol

Lumbar Spine Lateral Protocol: Patient Positioning: Lying on the affected side with the hips and knees flexed, with the central ray directed to the mid-lumbar region; Imaging Settings: 70–80 kVp, 5–10 mAs; Common Views: Lateral view to evaluate lumbar alignment, intervertebral discs, and bony structures.

Created: 2024-12-06 13:19:50

Last Updated: 2024-12-06 13:19:50

Lung Base

Lung Base: The bottom portion of the lung, resting on the diaphragm.

Created: 2024-12-06 13:19:56

Last Updated: 2024-12-06 13:19:56

Lungs

Lungs: Paired organs in the chest that are responsible for gas exchange, supplying oxygen to the bloodstream and removing carbon dioxide.

Created: 2024-12-06 13:19:59

Last Updated: 2024-12-06 13:19:59

Lupus Arthritis

Lupus Arthritis: Joint inflammation caused by systemic lupus erythematosus.

Created: 2024-12-06 13:20:05

Last Updated: 2024-12-06 13:20:05

Lyme disease

Lyme disease: An infectious disease transmitted by a tick bite.

Created: 2024-12-06 13:20:11

Last Updated: 2024-12-06 13:20:11

Lymph Node Biopsy Needle

Lymph Node Biopsy Needle: A needle used for taking tissue samples from lymph nodes during biopsy procedures to detect cancer or infection.

Created: 2024-12-07 14:32:44

Last Updated: 2024-12-07 14:32:44

Lymph Nodes

Lymph Nodes: Small, bean-shaped structures that filter lymph, playing a key role in immune responses.

Created: 2024-12-06 13:20:17

Last Updated: 2024-12-06 13:20:17

Lymphangitic Carcinomatosis

Lymphangitic Carcinomatosis: Spread of malignancy through lymphatic vessels in the lung. Radiologically seen as thickened interlobular septa and nodularity.

Created: 2024-12-06 13:20:28

Last Updated: 2024-12-06 13:20:28

Lymphangitis

Lymphangitis: Inflammation of the lymphatic vessels, often resulting from an infection.

Created: 2024-12-06 13:20:32

Last Updated: 2024-12-06 13:20:32

Lymphatic Tissue

Lymphatic Tissue: Tissue in lymphatic organs like the spleen and thymus that produces lymphocytes and helps with immune defense.

Created: 2024-12-06 13:20:39

Last Updated: 2024-12-06 13:20:39

Lymphocyte

Lymphocyte: Type of white blood cell found in the lymphatic system, crucial for immune defense.

Created: 2024-12-06 13:20:42

Last Updated: 2024-12-06 13:20:42

Lymphoid Organs

Lymphoid Organs: Organs such as the lymph nodes, spleen, and tonsils that are involved in immune function and lymph filtration.

Created: 2024-12-06 13:20:49

Last Updated: 2024-12-06 13:20:49

Lymphoma

Lymphoma: A cancer of the lymphatic system. CT or PET scans show enlarged lymph nodes with homogeneous enhancement.

Created: 2024-12-06 13:20:59

Last Updated: 2024-12-06 13:20:59

Lymphoma Radiation Therapy

Lymphoma Radiation Therapy: The use of radiation to treat cancers of the lymphatic system, often combined with chemotherapy.

Created: 2024-12-06 13:20:55

Last Updated: 2024-12-06 13:20:55

Lysosomal Exocytosis

Lysosomal Exocytosis: The fusion of lysosomes with the plasma membrane to release waste products or repair the cell membrane.

Created: 2024-12-07 16:54:00

Last Updated: 2024-12-07 16:54:00

Lytic Bone Lesion

Lytic Bone Lesion: Areas of bone destruction often caused by infections, tumors, or metabolic disorders.

Created: 2024-12-06 13:21:07

Last Updated: 2024-12-06 13:21:07

labile hypertension

labile hypertension: Blood pressure that frequently fluctuates between normal and abnormal during the course of a day, often within only a few minutes.

Created: 2024-12-06 12:17:55

Last Updated: 2024-12-06 12:17:55

labyrinth

labyrinth: The inner ear. It contains the cochlea, which is responsible for hearing, as well as structures that are needed for balance.

Created: 2024-12-06 12:17:48

Last Updated: 2024-12-06 12:17:48

laceration

laceration: A tear in the skin.

Created: 2024-12-06 12:17:45

Last Updated: 2024-12-06 12:17:45

lacrimal gland

lacrimal gland: The gland that produces tears.

Created: 2024-12-06 12:17:41

Last Updated: 2024-12-06 12:17:41

lactase

lactase: An enzyme that breaks down milk sugar (lactose) in the body.

Created: 2024-12-06 12:17:33

Last Updated: 2024-12-06 12:17:33

lactic acidosis

lactic acidosis: A rare but potentially lethal condition in which blood lactic acid levels increase.

Created: 2024-12-06 12:17:30

Last Updated: 2024-12-06 12:17:30

lactose intolerance

lactose intolerance: The inability of the body to easily digest lactose, a sugar found in milk and dairy products.

Created: 2024-12-06 12:17:23

Last Updated: 2024-12-06 12:17:23

lacunar stroke

lacunar stroke: A small ischemic stroke caused by the blockage of one of the smaller blood vessels in the brain; the most common effect is weakness or disability on one side of the body.

Created: 2024-12-06 12:17:12

Last Updated: 2024-12-06 12:17:12

lamellar bone

lamellar bone: Hard, dense tissue that forms the outer shell of bones. Also called compact bone.

Created: 2024-12-06 12:17:03

Last Updated: 2024-12-06 12:17:03

lamina

lamina: One of the two thin, plate-like parts of each vertebra.

Created: 2024-12-06 12:16:57

Last Updated: 2024-12-06 12:16:57

laminectomy

laminectomy: An operation in which all or part of one or both laminae is removed.

Created: 2024-12-06 12:16:53

Last Updated: 2024-12-06 12:16:53

lanugo

lanugo: Fine, soft hair that grows all over the body of a fetus and is typically shed before birth.

Created: 2024-12-06 12:16:51

Last Updated: 2024-12-06 12:16:51

laparoscopy

laparoscopy: A surgical procedure carried out with tiny instruments inserted through small openings in the skin.

Created: 2024-12-06 12:16:48

Last Updated: 2024-12-06 12:16:48

laser prostatectomy

laser prostatectomy: A surgical technique for treating an enlarged prostate (benign prostatic hyperplasia). It uses a high-energy laser to remove large amounts of prostate tissue with little bleeding.

Created: 2024-12-06 12:16:44

Last Updated: 2024-12-06 12:16:44

latex allergy

latex allergy: An allergic reaction to the proteins found in natural rubber.

Created: 2024-12-06 12:16:31

Last Updated: 2024-12-06 12:16:31

laxative

laxative: A drug or substance that induces bowel movements or makes the stool softer and looser.

Created: 2024-12-06 12:16:26

Last Updated: 2024-12-06 12:16:26

learned insomnia

learned insomnia: When fear of not sleeping develops after a short period of not sleeping well, and this anxiety causes ongoing trouble falling or staying asleep.

Created: 2024-12-06 12:16:22

Last Updated: 2024-12-06 12:16:22

left ventricular hypertrophy

left ventricular hypertrophy: A thickening of the wall of the lower left chamber of the heart, which is responsible for pumping blood to organs throughout the body.

Created: 2024-12-06 12:16:08

Last Updated: 2024-12-06 12:16:08

left-ventricular assist device

left-ventricular assist device: A surgically implanted pump that augments the pumping action of the left ventricle.

Created: 2024-12-06 12:16:16

Last Updated: 2024-12-06 12:16:16

lensometer

lensometer: A device used to check the prescription of eyeglasses.

Created: 2024-12-06 12:15:58

Last Updated: 2024-12-06 12:15:58

leptin

leptin: A hormone produced by fat cells that acts on the brain to suppress appetite and burn stored fat.

Created: 2024-12-06 12:15:55

Last Updated: 2024-12-06 12:15:55

lesion

lesion: An infected, diseased, or wounded area of tissue.

Created: 2024-12-06 12:15:52

Last Updated: 2024-12-06 12:15:52

leukotriene modifiers

leukotriene modifiers: Asthma medications that work by blocking the production or action of leukotrienes, chemicals made in the body as part of an allergic reaction.

Created: 2024-12-06 12:15:49

Last Updated: 2024-12-06 12:15:49

leukotrienes

leukotrienes: Chemicals that cause airways to swell when an allergic reaction occurs or in diseases like asthma.

Created: 2024-12-06 12:15:41

Last Updated: 2024-12-06 12:15:41

levothyroxine sodium

levothyroxine sodium: A man-made version of the thyroid hormone thyroxine.

Created: 2024-12-06 12:15:28

Last Updated: 2024-12-06 12:15:28

libido

libido: Sexual desire.

Created: 2024-12-06 12:15:21

Last Updated: 2024-12-06 12:15:21

lice

lice: A blood-sucking parasite known as Pediculus humanus capitis that can cause an itchy scalp; infestations are highly contagious and especially common in school-age children.

Created: 2024-12-06 12:14:44

Last Updated: 2024-12-06 12:14:44

ligament

ligament: A band of tissue that connects bones.

Created: 2024-12-06 12:14:40

Last Updated: 2024-12-06 12:14:40

ligature

ligature: Any material that is tied around a blood vessel to stop it from bleeding.

Created: 2024-12-06 12:14:35

Last Updated: 2024-12-06 12:14:35

lignans

lignans: Antioxidant chemicals found in seeds like flax and sesame, as well as some fruits, vegetables, and grains.

Created: 2024-12-06 12:14:32

Last Updated: 2024-12-06 12:14:32

limbic system

limbic system: A group of structures in the brain that help control memory, emotions, sexual arousal, and motivation.

Created: 2024-12-06 12:14:28

Last Updated: 2024-12-06 12:14:28

limbus

limbus: The border between the cornea and the white of the eye.

Created: 2024-12-06 12:14:22

Last Updated: 2024-12-06 12:14:22

liothyronine sodium

liothyronine sodium: A man-made version of the thyroid hormone triiodothyronine.

Created: 2024-12-06 12:14:19

Last Updated: 2024-12-06 12:14:19

lipase

lipase: An enzyme secreted by the pancreas that helps the body break down fats.

Created: 2024-12-06 12:14:12

Last Updated: 2024-12-06 12:14:12

lipids

lipids: Fats, oils, and waxes that serve as building blocks for cells or as energy sources. Lipids are also capable of accumulating in the artery walls to form plaque.

Created: 2024-12-06 12:14:09

Last Updated: 2024-12-06 12:14:09

lipoatrophy

lipoatrophy: Dents or depressions in the skin that are caused by a loss of fatty tissue.

Created: 2024-12-06 12:14:04

Last Updated: 2024-12-06 12:14:04

lipohypertrophy

lipohypertrophy: A buildup of fatty tissue.

Created: 2024-12-06 12:14:01

Last Updated: 2024-12-06 12:14:01

lipoma

lipoma: A noncancerous tumor or growth composed of fat cells.

Created: 2024-12-06 12:13:58

Last Updated: 2024-12-06 12:13:58

lipoprotein analysis

lipoprotein analysis: A test that measures the amount of triglycerides, total cholesterol, HDL (good cholesterol), and LDL (bad cholesterol) in a persons blood.

Created: 2024-12-06 12:13:55

Last Updated: 2024-12-06 12:13:55

lipoprotein(a)

lipoprotein(a): A molecule made up of fat and protein that is very similar to harmful LDL.

Created: 2024-12-06 12:13:27

Last Updated: 2024-12-06 12:13:27

liposuction

liposuction: A cosmetic procedure that removes fat from an area of the body.

Created: 2024-12-06 12:13:20

Last Updated: 2024-12-06 12:13:20

live attenuated vaccines

live attenuated vaccines: Vaccines made from a weakened virus or microbe. These weakened viruses and microbes don't cause disease; instead they teach the body to recognize the substance as harmful and destroy it if there is contact with it in the future.

Created: 2024-12-06 12:13:16

Last Updated: 2024-12-06 12:13:16

liver

liver: A vital organ that removes waste products from the body and helps with digestion.

Created: 2024-12-06 12:13:09

Last Updated: 2024-12-06 12:13:09

living will

living will: A legal document that states what a person would and would not want if he or she is no longer able to make health care decisions.

Created: 2024-12-06 12:13:06

Last Updated: 2024-12-06 12:13:06

lobar hemorrhage

lobar hemorrhage: Bleeding that occurs in the white matter of the brain beneath the cerebral cortex.

Created: 2024-12-06 12:12:45

Last Updated: 2024-12-06 12:12:45

lobotomy

lobotomy: A surgical procedure to severe one or more branches of nerves into the frontal lobe of the brain.

Created: 2024-12-06 12:12:31

Last Updated: 2024-12-06 12:12:31

lobules

lobules: Milk-producing glands of the breast.

Created: 2024-12-06 12:12:27

Last Updated: 2024-12-06 12:12:27

localized

localized: In reference to cancer, generally means cancer that is limited to a specific gland or other tissue, without any distant spread; an organ-confined cancer.

Created: 2024-12-06 12:12:24

Last Updated: 2024-12-06 12:12:24

locus ceruleus

locus ceruleus: An area of the brain stem that helps control the brains alertness, responses to certain stimuli, and stress and anxiety levels.

Created: 2024-12-06 12:12:19

Last Updated: 2024-12-06 12:12:19

long-term memory

long-term memory: A memory that lasts from a few minutes to decades.

Created: 2024-12-06 12:12:08

Last Updated: 2024-12-06 12:12:08

low-calorie diet

low-calorie diet: A weight-loss plan that limits calories to 800 1,500 a day.

Created: 2024-12-06 12:12:01

Last Updated: 2024-12-06 12:12:01

low-density lipoprotein

low-density lipoprotein: So-called bad cholesterol. If there is too much LDL in the blood, it can collect on artery walls, narrowing them and making heart attacks and strokes more likely.

Created: 2024-12-06 12:11:49

Last Updated: 2024-12-06 12:11:49

lower esophageal sphincter

lower esophageal sphincter: A ring of muscle where the esophagus and stomach meet. It relaxes to let food into the stomach and closes to prevent stomach acids from backing up and irritating the esophagus.

Created: 2024-12-06 12:11:42

Last Updated: 2024-12-06 12:11:42

lumbar stenosis

lumbar stenosis: Narrowing of the spinal canal in the lower portion of the spine (known as the lumbar spine).

Created: 2024-12-06 12:11:34

Last Updated: 2024-12-06 12:11:34

lumen

lumen: The hollow part of a tube, like a blood vessel, or the cavity in a hollow organ.

Created: 2024-12-06 12:11:28

Last Updated: 2024-12-06 12:11:28

lutein

lutein: A natural substance found in green leafy vegetables.

Created: 2024-12-06 12:11:24

Last Updated: 2024-12-06 12:11:24

luteinizing hormone-releasing hormone agonist

luteinizing hormone-releasing hormone agonist: A drug that slows the production of hormones by the testicles in men or the ovaries in women.

Created: 2024-12-06 12:11:19

Last Updated: 2024-12-06 12:11:19

lymph nodes

lymph nodes: Small, bean-shaped organs that filter germs and foreign matter out of the body. Also called lymph glands.

Created: 2024-12-06 12:11:12

Last Updated: 2024-12-06 12:11:12

lymphatic system

lymphatic system: A system of channels that drains excess clear fluid, called lymph, from tissues and returns it into the bloodstream.

Created: 2024-12-06 12:11:06

Last Updated: 2024-12-06 12:11:06

lymphedema

lymphedema: Blockage in or damage to the lymphatic systems, causing lymphatic fluid to build up in tissues, making them swell.

Created: 2024-12-06 12:10:58

Last Updated: 2024-12-06 12:10:58

lymphocyte

lymphocyte: A type of white blood cell that can recognize foreign substances in the body.

Created: 2024-12-06 12:10:55

Last Updated: 2024-12-06 12:10:55

lymphoma

lymphoma: A type of cancer that affects cells in the lymphatic system.

Created: 2024-12-06 12:10:52

Last Updated: 2024-12-06 12:10:52