Heart and Blood

Question 1

Blood reduces fluid lost at injury sites by which of the following? (pg. 438)

Answer 1

Clotting

Question 2

What are special proteins that attack invading organisms called? (pg.442)

Answer 2

Antibodies

Question 3

What is the average pH of whole blood? (pg. 36)

Answer 3

7.35-7.45

Question 4

Which of the following is the most abundant plasma protein and the one responsible for the osmotic pressure of plasma? (pg. 424)

Answer 4

Albumin

Question 5

Which plasma protein is responsible for antibodies and transport proteins? (pg. 424)

Answer 5

Globulins

Question 6

Which plasma protein attacks foreign proteins and pathogens?

Answer 6

Immunoglobin (Ig’s)

Question 7

Which plasma protein is involved in blood clotting? (pg. 424)

Answer 7

Fibrinogens

Question 8

_____ bind(s) and transport(s) carbon dioxide and oxygen. (pg. 427)

Answer 8

Hemoglobin

Question 9

The _____ is the percentage of whole blood volume occupied by cellular elements. (pg. 426)

Answer 9

Hematocrit

Question 10

Which surface antigen(s) on red blood cells determines blood type? (pg. 443)

Answer 10

A,B,Rh

Question 11

What is thrombocytopenia? (pg. 436)

Answer 11

Low Platelet Count

Question 12

Which Chambers of the heart are associated with the pulmonary circuit?
(pg. 450)

Answer 12

Right Ventricle, Left Atrium

Question 13

Which Connective tissue divides the thoracic cavity into two pleural cavities and encloses the heart? (pg. 450)

Answer 13

Mediastinum

Question 14

The Muscular wall of the heart is called the? (pg. 451)

Answer 14

Myocardium

Question 15

Which of the following is true of the foramen ovale? (pg. 454)

Answer 15

Closes at birth. Penetrates the intertribal septum from the fifth week of embryonic development until birth. Allows blood to flow from the right atrium to the left atrium.

Question 16

The Valve between the left atrium and left ventricle is the? (pg. 452)

Answer 16

Mitral valve. Left Arterioventricular Valve. Bicuspid valve

Question 17

The right coronary artery divides into what branches? (pg. 457)

Answer 17

Marginal and posterior interventricular.

Question 18

What is an area of dead tissue caused by an interruption in cardiac blood flow called? (pg.

Answer 18

infarct

Question 19

An influx of _____ rapidly depolarizes the cardiac contractile cells.

Answer 19

Sodium

Question 20

The introduction of ______ initiates contraction during the plateau phase (pg. 462)

Answer 20

Calcium

Question 21

The normal rate of contraction is established by _____ cells, the nodal cells that reach the threshold.

Answer 21

Pacemaker

Question 22

______ form branching networks and are barely the diameter of a single red blood cell.

Answer 22

Capillaries

Question 23

Which layer of a blood vessel contains smooth muscle tissue?

Answer 23

Tunica Media

Question 24

Which of the following controls the flow of blood into the capillary?

Answer 24

Pre-capillary Sphincter

Question 25

_____ is the formed tubule through which blood completely bypasses a capillary bed.

Answer 25

Arteriovenous anastomosis

Question 26

______ is the resistance to flow resulting from interactions among molecules and suspended materials in liquid.

Answer 26

Viscosity

Question 27

______ is the difference between the systolic and diastolic pressures.

Answer 27

Pulse Pressure

Question 28

Which of the following affects tissue perfusion?

Answer 28

Cardiac output, Peripheral resistance, blood pressure

Question 29

Which portion of the brain has the cardiac and vasomotor centers?

Answer 29

Medulla Oblongata