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Anatomy and Physiology
Quiz 2A
April 2, 2015
Name: ______________________________________________
1.
In regards to immunity, which of the following is NOT TRUE?
A.
B.
C.
D.
E.
2.
All of the following are characteristics of the intrinsic conductance system EXCEPT:
A.
B.
C.
D.
E.
3.
The secondary response has a more rapid onset than a primary response
The secondary response has a longer duration than a primary response
The secondary response targets more types of antigens than a primary response
A&B
A, B & C
All of the following are characteristics of the pacemaker potential EXCEPT:
A.
B.
C.
D.
E.
5.
The AV node can only be activated by the autorhythmic cells in the SA node
To reach the purkinje fibers, electrical current must pass through the bundle of His
The T wave records the pacemaker potential in the SA node
The AV node delays the spread of current from the atria to the ventricles
A&C
How does the secondary response differ from the primary response?
A.
B.
C.
D.
E.
4.
Artificially acquired passive immunity requires a humoral response
Development of naturally acquired active immunity requires repeated exposure to
an infective agent
Most members of western societies are likely to have artificially acquired active
immunity
Naturally acquired passive immunity typically only occurs during early life
A&B
The pacemaker potential can occur in the SA and AV nodes
Na+ channels are open in all phases of the pacemaker potential
The rising phase of the pacemaker potential results from the efflux of calcium
A&C
B&C
In regards to the characteristics of the specific mechanism of the immune systems, which is
NOT TRUE?
A.
B.
C.
D.
E.
Each plasma cell has only one type of antigen receptor
Memory cells are produced during all cell mediated responses
HLA’s are only present on immune cells
During secondary responses, additional memory cells are produced
Phagocytosis is often a part of the specific response
6.
In regards to the valves and chambers of the heart, which of the following is NOT TRUE?
A.
The papillary muscles for the AV valves are located in the wall of the ventricles
B.
The right and left ventricles have the same stroke volume
C.
The myocardium of the left ventricle is thicker than the right ventricle
D.
Valves in the pulmonary veins and vena cava prevent the flow of blood into the
atria during atrial diastole
E.
B&D
7.
Through which of the following valves will blood pass through first in the pulmonary circuit?
A.
B.
C.
D.
E.
8.
In regards to the coronary vessels, which of the following is TRUE?
A.
B.
ventricular
C.
D.
E.
9.
Right AV
Left AV
Pulmonary semilunar
Aortic semilunar
Inferior valve of the vena cava
The anterior interventricular artery is the first branch off the right coronary artery
Blood must pass through the right coronary artery to enter the posterior interartery
The left coronary artery gives rise to the marginal branches
The anterior and posterior inter-ventricular arteries connect on the posterior surface of
the heart
A&B
In regards to the anatomy of the heart, which of the following is NOT TRUE?
A.
B.
C.
D.
E.
The outer layer of the pericardium is formed from the epicardium
Papillary muscles connect the chordae tendonae to the heart wall
The myocardium is the thickest layer of the heart
The base of the heart lies at the level of the 5th intercostal space
A&D
For Questions 10 - 11 refer to the following table.
1
2
3
4
5
10.
The P wave has occurred
The QRS wave has not occurred
Ventricular volume is constant
Ventricular volume is increasing
AV valve is closed
1, 2, 4, 6, 7, 9
1, 2, 4, 6, 8, 10
1, 2, 4, 6, 7
2, 4, 6, 7
2, 4, 6, 8, 10
At the point in the cardiac cycle when EDV has reached its maximum value, which of the
following MUST BE TRUE?
A.
B.
C.
D.
E.
12.
AV valve is open
SL valve is closed
SL valve is open
Atrial repolarization is occurring
Ventricular depolarization is occurring
Prior to atrial systole, which of the following MUST BE TRUE?
A.
B.
C.
D.
E.
11.
6
7
8
9
10
1. 3, 5, 7
1, 2, 3, 5 & 7
1, 2, 3, 5, 7 & 10
1, 3, 5, 7, 9
1, 3, 5, 7, 10
All of the following are characteristics of the EKG EXCEPT:
A.
B.
C.
D.
E.
The P wave precedes all other EKG waves
The QRS results from depolarizing current spreading across the ventricles
The P wave
The T wave occurs after the QRS
For healthy individuals, the QRS wave always occurs after atrial repolarization
For Question 13, refer to the following table.
I
II
III
IV
V
13.
The patient may be having an allergic response
The antigen is present on a mucous membrane
The patient has been exposed to a novel antigen
The antigen is a blood borne toxin
The complement system has been activated
A patient has elevated IgE and IgM titers. Which of the following can cause these findings?
A.
B.
C.
D.
E.
I & III
I, III & V
II
II & V
I, IV & V
For Question 14, refer to the following table.
I
II
III
IV
V
14.
Ca2+ levels in the myocardium
Time required to achieve threshold
Contractile strength
ESV
Stroke volume
Of the factors listed above, which increase when the parasympathetic nervous system is
activated?
A.
B.
C.
D.
E.
I & III
I, III & V
I, III, IV & V
II
II & IV