Chapter 11, 12, 13

Question 1

What are special proteins that attack invading organisms called?

Answer 1

Antibodies

Question 2

What is the average pH of whole blood?

Answer 2

7.35-7.45

Question 3

Which of the following is the most abundant plasma protein and the one responsible for the osmotic pressure of plasma?

Answer 3

Albumin

Question 4

Which plasma protein is responsible for antibodies and transport proteins?

Answer 4

Globulins

Question 5

Which plasma protein attacks foreign proteins and pathogens?

Answer 5

Immunoglobulins

Question 6

Which plasma protein is involved in blood clotting?

Answer 6

Fibrinogens

Question 7

_________ bind(s) and transport(s) carbon dioxide and oxygen.

Answer 7

Hemoglobin

Question 8

The ______ is the percentage of whole blood volume occupied by cellular elements.

Answer 8

Hematocrit

Question 9

Blood reduces fluid loss at injury sites by which of the following?

Answer 9

Clotting

Question 10

Which surface on red blood cells determines blood type?

Answer 10

A, B, Rh (all of the above)

Question 11

What is thrombocytopenia?

Answer 11

Low platelet count

Question 12

Which chambers of the heart are associated with pulmonary circuit?

Answer 12

Right ventricle, left atrium

Question 13

Which connective tissue divides the thoracic cavity into two pleural cavities and encloses the heart?

Answer 13

Mediastinum

Question 14

The muscular wall of the heart is called what?

Answer 14

Myocardium

Question 15

Which of the following is true of the foramen ovale?
Closes at birth
Penetrates the interatrial septum from the 5th week of embryonic development until birth
Allows blood to flow from the right atrium to the left atrium

Answer 15

All of the above

Question 16

The valve between the left atrium and left ventricle is the?

Answer 16

Mitral valve, left arterioventricular valve, bicuspid valve (all of the above)

Question 17

The right coronary artery divides into what branches?

Answer 17

Marginal and posterior interventricular

Question 18

What is an area of dead tissue caused by an interruption in cardiac flow called?

Answer 18

Infarct

Question 19

The influx of _____ rapidly depolarizers the cardiac contractile cells.

Answer 19

Sodium

Question 20

The introduction of ______ initiates contraction during plateau phase.

Answer 20

Calcium

Question 21

The normal rate of contraction is established by ______ cells, the nodal cells that reach 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

The formation of lipid deposits in the tuna media associated with damage to the endothelial lining is called what?

Answer 24

Atherosclerosis

Question 25

What controls the flow of blood into the capillary?

Answer 25

Precapillary sphincter

Question 26

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

Answer 26

Arteriovenous anastomoses

Question 27

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

Answer 27

Viscosity

Question 28

______ is the difference between the systolic and diastolic pressures.

Answer 28

Pulse pressure

Question 29

Which of the following affects tissue perfusion? Cardiac output Blood pressure Peripheral resistance

Answer 29

All of the above

Question 30

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

Answer 30

Medulla oblongata