Quiz 5 Flashcards
1
Q
Blood reduces fluid loss at an injury site by which of the following? A) Decreasing pressure B) Clotting C) Increased red factor D) All of the above
A
B) Clotting
2
Q
What are special proteins that attack invading organisms called? A) Antibodies B) White blood cells C) Red blood cells D) Antigens
A
A) Antibodies
3
Q
What is the average pH of whole blood? A) 7.40 to 7.50 B) 7.25 to 7.45 C) Varies based on age D) 7.35 to 7.45
A
D) 7.35 to 7.45
4
Q
Which of the following is the most abundant plasma protein and the one responsible for the osmotic pressure of plasma? A) Fibrinogen B) Immunoglobulin C) Globulin D) Albumin
A
D) Albumin
5
Q
Which plasma protein is responsible for antibodies and transport proteins? A) Albumins B) Fibrinogens C) Immunoglobulins D) Globulins
A
D) Globulins
6
Q
Which of the following is called a drifting blood clot? A) Platelet plug B) Plaque C) Embolus D) Thrombus
A
C) Embolus
7
Q
Which plasma protein is involved in blood coagulation? A) Albumins B) Immunoglobulins C) Globulins D) Fibrinogens
A
D) Fibrinogens
8
Q
\_\_\_\_\_\_\_\_\_ bind(s) and transport (s) carbon dioxide and oxygen A) Hemoglobulin B) Hematocrit C) Hemocytes D) Hemoglobin
A
D) Hemoglobin
9
Q
The \_\_\_\_\_\_\_\_ is the percentage of whole blood volume occupied by cellular elements. A) Hemocult B) Hemacrite C) Hematocrit D) Hematine
A
C) Hematocrit
10
Q
Which surface antigen on red blood cells determines blood type? A) A B) B C) Rh D) All of the above
A
D) All of the above
11
Q
What is thrombocytopenia? A) Low platelet count B) High red blood cell count C) high white blood cell count D) high plasma to red blood cell ratio
A
A) Low platelet count
12
Q
Which chambers of the heart are associated with the pulmonary circuit? A) Right atrium, left ventricle B) Left ventricle, right atrium C) Left atrium, left ventricle D) Right ventricle, left atrium
A
D) Right ventricle, left atrium
13
Q
Which connective tissue divides the thoracic cavity into two pleural cavities and encloses the heart? A) Mediastinum B) Pleural sac C) Pericardial sac D) None of the above
A
A) Mediastinum
14
Q
The muscular wall of the heart is called what? A) Epicardium B) Myocardium C) Endocardium D) None of the above
A
B) Myocardium
15
Q
Which of the following is true of the foramen ovale?
A) Closes at birth
B) Penetrates the interatrial septum and connects the atria
C) Allows blood flow form the right atrium and left ventricle
D) All of the above
A
D) All of the above
16
Q
The valve between the left atrium and left ventricle is the: A) Mitral valve B) Left atrioventricular valve C) Bicuspid valve D) All of the above
A
D) All of the above
17
Q
The right coronary artery divides into what branches?
A) Marginal and posterior interventricular
B) Marginal and circumflex
C) Circumflex and anterior interventricular
D) Posterior and anterior interventricular
A
A) Marginal and posterior interventricular
18
Q
What is an area of dead tissue caused by interruption in cardiac blood flow called? A) Disruption site B) Ischemia C) Infarct D) None of the above
A
C) Infarct
19
Q
The influx of \_\_\_\_\_\_\_\_\_ rapidly depolarizes the cardiac contractile cells. A) Potassium B) Magnesium C) Sodium D) Calcium
A
C) Sodium
20
Q
Pulmonary veins carry blood to which of the following? A) Lungs B) Heart C) Brain D) Liver
A
B) Heart
21
Q
The normal rate of contraction of the heart is established by \_\_\_\_\_\_\_\_\_ cells. A) Conducting B) Pacer C) Nodal rate D) Pacemaker
A
D) Pacemaker
22
Q
\_\_\_\_\_\_\_\_\_ form branching networks and are barely the diameter of a single red blood cell A) Capillaries B) Veins C) Arteries D) none of the above
A
A) Capillaries
23
Q
Which layer of a blood vessel contains smooth muscle tissue? A) Tunica media B) Tunica lumena C) Tunica externa D) Tunica interna
A
A) Tunica media
24
Q
The formation of lipid deposits in the tunica media associated with damage to the endothelial lining is called what? A) Arterisclerosis B) Anteroscelrosis C) Atherosclerosis D) Lumenasclerosis
A
C) Atherosclerosis
25
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Which of the following controls the flow of blood into the capillary?
A) Capillary pressure gradient
B) Capillary tone
C) Capillary control muscle
D) Precapillary sphincter
```
D) Precapillary sphincter
26
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________ connect arterioles and venules, acting as shunts of the capillary beds.
A) Venous anastomosis
B) Arteriovenous anastomosis
C) Arterial anastomosis
D) Capillary anastomosis
```
B) Arteriovenous anastomosis
27
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________ is the resistance to flow resulting from interactions among molecules and suspended materials in a liquid.
A) Viscosity
B) Pressure variable
C) Turbulence
D) Density
```
A) Viscosity
28
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________ is the difference between the systolic and diastolic pressures.
A) Pressure variable
B) Pulse
C) Pulse pressure
D) Pressure gradient
```
C) Pulse pressure
29
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Which of the following affects tissue perfusion?
A) Cardiac output
B) Blood pressure
C) Peripheral resistance
D) All of the above
```
D) All of the above
30
```
Which portion of the brain has the cardiac and vasomotor centers?
A) Cerebellum
B) Cerebrum
C) Occipital
D) Medulla oblongata
```
D) Medulla oblongata
