Chapter 5 & 6

Question 1

erythrocytes

Answer 1

a red blood cell that (in humans) is typically a biconcave disc without a nucleus. Erythrocytes contain the pigment hemoglobin, which imparts the red color to blood, and transport oxygen and carbon dioxide to and from the tissues.

Question 2

myocardial infarction

Answer 2

heart attack

Question 3

sinoatrial node

Answer 3

a small body of specialized muscle fibers, located in the right atrium of the heart, whose activity is responsible for initiating the heartbeat.

Question 4

embolus

Answer 4

a blood clot, air bubble, piece of fatty deposit, or other object which has been carried in the bloodstream to lodge in a vessel and cause an embolism.

Question 5

phleb/o

Answer 5

vein

Question 6

fibrillation

Answer 6

a muscular twitching involving individual muscle fibers acting without coordination

Question 7

angioplasty

Answer 7

surgical repair or unblocking of a blood vessel, especially a coronary artery.

Question 8

electrocardiogram

Answer 8

painless test that measures your heart’s electrical activity

Question 9

aplastic

Answer 9

disease in which the body fails to produce blood cells in sufficient numbers.

Question 10

LDL

Answer 10

low-density lipoprotein

Question 11

allergy

Answer 11

a damaging immune response by the body to a substance, especially pollen, fur, a particular food, or dust, to which it has become hypersensitive.

Question 12

metastasis

Answer 12

the development of secondary malignant growths at a distance from a primary site of cancer.

Question 13

antigens

Answer 13

a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.

Question 14

carcinoma

Answer 14

a malignancy that develops from epithelial cells.

Question 15

macrophages

Answer 15

pecialised cells involved in the detection, phagocytosis and destruction of bacteria and other harmful organisms

Question 16

virus

Answer 16

an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.

Question 17

brachytherapy

Answer 17

the treatment of cancer, especially prostate cancer, by the insertion of radioactive implants directly into the tissue.

Question 18

splenorrhagia

Answer 18

Hemorrhage from a ruptured spleen

Question 19

inguinal

Answer 19

of the groin.

Question 20

immunoglobulin

Answer 20

any of a class of proteins present in the serum and cells of the immune system, which function as antibodies