Page 192 - 86 human physiology part-2

Appendix A: Answers to Review Questions

A) Resting potential
B) Atrial depolarization
C) SA node excitation
• D) Ventricle repolarization
E) Purkinje Excitation

7. Blood pressure is the measure of

• A) Pressure exerted by the blood on the walls of the blood vessels
B) Pressure exerted by the blood on the arteries
C) Pressure exerted by the blood on the veins
D) Pressure exerted by the blood on the aorta

8. Systolic Pressure is

A) An average of 120 mm Hg
B) Lowers steadily during ventricle systole
C) The highest when blood is being pumped out of the left ventricle into the aorta
D) An average of 80 mm Hg
• E) Both A and C
F) Both B and D

The Immune System

1-When neutrophils and macrophages squeeze out of capillaries to fight off infection it is called:

A) phagocytosis
B) hemolysis
C) interleukin
• D) diapedesis
E) folliculitis

2-During a great battle between your WBC's and an aggressive microbe, an inflammatory response
has been initiated. Reddness and edema has kicked in what else does the body do to protect itself?

A) Histamine cause vasodilation
B) Hypothalmus raises the thermostat
C) Neutrophils engulf and destroy the microbe
D) Living and dead WBC and bacteria accumulate
• E) All of the above

3-Specificity and memory are associated with which body defense mechanism?

A) inflammatory response
B) phagocytosis by macrophages and neutrophils
C) interferon
• D) T cell and B cell responses
E) anatomical barriers in the body

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