Glossary Flashcards
abdomen (AB-doh-men)
body area between the diaphragm and pelvis
abdominal (ab-DOM-ih-nal)
relating to the abdomen
abdominal cavity (ab-DOM-ih-nal KAV-ih-tee)
the cavity containing the abdominal organs
abdominal muscles (ab-DOM-ih-nal MUS-els)
muscles support-ing the anterior aspect of the abdomen
abdominal quadrants (ab-DOM-ih-nal KWOD-rants)
four topographic subdivisions of the abdomen determined by two imagi-nary lines dividing the body through the navel—one vertical, one horizontal; health professionals use these designations to help locate specific internal organs
abdominal regions (ab-DOM-ih-nal REE-juns)
nine topographic subdivisions of the abdomen determined by four imaginary lines configured in a tic-tac-toe pattern; anatomists use these named regions to identify the location of internal organs
abdominal thrust (ab-DOM-ih-nal thrust)
emergency procedure in which sudden pressure on the abdomen of a person who is chok-ing may dislodge material from the airway; formerly called the Heimlich maneuver
abdominopelvic cavity (ab-DOM-ih-noh-PEL-vik KAV-ih-tee)
the single cavity containing the abdominal and pelvic organs
abdominopelvic quadrant (ab-DOM-ih-noh-PEL-vik KWOD-rant)
any of four regions formed by dividing the abdominopelvic cavity by an imaginary cross formed by a vertical and horizontal line
abdominopelvic region (ab-DOM-ih-noh-PEL-vik REE-jun)
surface area of the body related to the abdominopelvic cavity
abduct (ab-DUKT)
to move away from the midline of the body (or region)
abduction (ab-DUK-shun)
moving away from the midline of the body (or region); opposite motion of adduction
ablation (ab-LAY-shun)
destruction or cutting; for example, the intentional destruction of atrial muscle tissue to treat atrial fibrillation or atrial flutter
ABO system (ay bee oh SIS-tem)
human blood classification system based on RBC antigens (A, B, AB, and O) and their correspond-ing antibodies
abruptio placentae (ab-RUP-shee-oh plah-SEN-tay)
separation of a typically positioned placenta from the uterine wall; may result in hemorrhage and death of the fetus and/or birth mother
absorption (ab-SORP-shun)
passage of a substance through a membrane, such as skin or mucosa, into blood
accessory organ (ak-SES-oh-ree OR-gun)
an organ that assists other organs in accomplishing their functions
acetabulum (as-eh-TAB-yoo-lum)
** socket** in the hip bone (ox coxae or innominate bone) into which the head of the femur fits
acetyl CoA (ah-SEET-il koh ay)
a molecule important in the me-tabolism of carbohydrates, lipids, and proteins; converted into CO2 and H2O while forming ATP and releasing hydrogen ions and their electrons
acetylcholine (ACh) (as-ee-til-KOH-leen)
) chemical neurotransmitter acid (AS-id) any substance that, when dissolved in water, contributes to an excess of H1 ions (that is, a low pH)
acid-base balance (AS-id bays BAL-ans)
maintaining the concen-tration of hydrogen ions in body fluids
acidic (ah-SID-ik)
having the nature of an acid (a pH lower than 7.0)
acidosis (as-ih-DOH-sis)
condition in which there is an excessive amount of acid in the blood and thus an unusually low blood pH; opposite of alkalosis
acne (AK-nee)
a bacterial infection of the skin characterized by red pustules formed when hair follicles become infected
acne vulgaris (AK-nee vul-GAR-is)
inflammatory skin condition affecting sebaceous gland ducts; see comedones
acquired immunity (ah-KWYERD ih-MYOO-nih-tee)
) immunity that is obtained after birth through the use of injections or expo-sure to a harmful agent
acquired immunodeficiency syndrome (AIDS) (ah-KWYERD IM-yoo-noh-deh-FISH-en-see SIN-drohm [aydz])
disease in which the human immunodeficiency virus attacks T cells, thereby compromising the body’s immune system
cromegaly (ak-roh-MEG-ah-lee)
condition caused by hypersecre-tion of growth hormone after puberty, resulting in enlargement of facial features (e.g., jaw, nose), fingers, and toes
acrosome (AK-roh-sohm)
specialized structure covering the sperm head containing enzymes that break down the covering of the ovum to allow entry
actin (AK-tin)
contractile protein found in the thin myofilaments of skeletal muscle
action potential (AK-shun poh-TEN-shal)
nerve impulse
active transport (AK-tiv TRANS-port)
movement of a substance into and out of a living cell requiring the use of cellular energy
acute (ah-KYOOT)
intense; rapid onset, short in duration—as in acute disease
acute lymphocytic leukemia (ALL) (ah-KYOOT LIM-foh-sit-ik loo-KEE-mee-ah)
type of acute (rapid onset and progression) blood cancer common in children 3 to 7 years of age; character-ized by cancerous transformation and increased numbers of B lymphocytes
acute myeloid leukemia (AML) (ah-KYOOT MY-eh-loyd loo-KEE-me-ah) type of acute (rapid onset and progression)
blood cancer most common in adults; characterized by cancerous transformation and increased numbers of myeloid precursor cells
adaptation (ad-ap-TAY-shun)
condition of many sensory receptors in which the magnitude of a receptor potential decreases over a period of time in response to a continuous stimulus
adaptive immunity (ah-DAP-tiv ih-MYOO-nih-tee)
a system of immunity with memory of a specific antigen and the ability to respond to that antigen, in contrast to the nonspecific nature of innate immunity; another name for specific immunity
Addison disease (AD) (AD-ih-son dih-ZEEZ)
disease of the adre-nal gland resulting in low blood glucose, weight loss, weakness, increase in blood sodium, and decrease in blood potassium
adduct (ad-DUKT)
to move toward the midline of the body (or region)
adduction (ad-DUK-shun)
moving toward the midline of the body (or region); opposite motion of abduction
adductor muscle (ad-DUK-tor MUS-el)
any of several muscles that adduct a joint, moving a body part in from the side (lateral) and thus toward the midline (median or midsagittal plane) of the body or of the body region; for example, the pectoralis major and latissimus dorsi muscles contract together to pull the arm toward the trunk, thus adducting the shoulder joint
adenine (ADD-eh-een)
one of several nitrogen-containing bases that make up nucleotides, which in turn make up nucleic acids such as DNA and RNA; in the cell, it can chemically bind to another nitrogenous base, thymine (T or t) or uracil (U or u), to form a more complex structure or in translating genetic codes; symbolized by the letter A or a; see also guanine, cytosine, thymine, uracil
adenocarcinoma (ad-eh-noh-kar-sih-NOH-mah)
cancer of glandular epithelium
adenofibromas (ad-eh-noh-fye-BROH-mahs)
benign neoplasms formed in epithelial and connective tissues
adenohypophysis (ad-eh-noh-hye-POF-ih-sis)
anterior pituitary gland, which has the structure of an endocrine gland
adenoid (AD-eh-noyd)
literally, glandlike; adenoids, or pharyngeal tonsils, are paired lymphoid structures in the nasopharynx; see also tonsil
adenoma (ad-eh-NOH-mah)
benign tumor of glandular epithelium
adenosine deaminase (ADA) deficiency (ah-DEN-oh-seen dee-AM-ih-nayse dee-FISH-en-see)
rare, inherited condition in which production of the enzyme adenosine deaminase is defi-cient, resulting in severe combined immune deficiency (SCID); first human condition treated by gene therapy
adenosine diphosphate (ADP) (ah-DEN-oh-seen dye-FAHS-fayt)
molecule similar to adenosine triphosphate but containing only two phosphate groups
adenosine triphosphate (ATP) (ah-DEN-oh-seen try-FAHS-fayt)
chemical compound that provides energy for use by body cells
adipose (AD-ih-pohs)
fat tissue; specialized tissue that stores lipids
adiposity (ad-ih-PAHS-ih-tee)
alternate name for overweight and obesity, an excess amount of fat (adipose tissue) in the body