Exam 2 Study Guide

Question 1

Atrioventricular (AV) valves

Answer 1

Prevent backflow between atria and ventricles (tricuspid/bicuspid valve)

Question 2

Semilunar valves

Answer 2

Control blood flow between ventricles and major arteries (pulmonary and aortic valves).

Question 3

P Wave

Answer 3

Atrial Depolartization

Question 4

QRS complex

Answer 4

Ventricular depolarization and atrial repolarization

Question 5

T wave

Answer 5

Ventricular repolarization

Question 6

Hemoglobin function

Answer 6

• Hemoglobin binds oxygen in the lungs and releases it in tissues.
• It can also bind carbon dioxide to form carbaminohemoglobin.

Question 7

Erythropoiesis

Answer 7

Stimulated by low oxygen levels or increase erythropoietin levels; Red blood cells (RBC’s) are produced in the bone marrow.

Question 8

Neutrophils

Answer 8

Most abundant leukocytes, act as first responders to infections

Question 9

Eosinophils

Answer 9

Increase in response to parasitic infections and allergies.

Question 10

Ventricular systole

Answer 10

Contraction of the ventricles pumps blood into arteries

Question 11

Ventricular diastole

Answer 11

Ventricles relax and fill with blood from the atria

Question 12

Systematic circulation

Answer 12

Supplies oxygen-rich blood to the body and returns
oxygen-poor blood to the heart.