BIO HUMAN ANATOMY & PHYSIOLOGY HOMEWORK
#10 (HEART) Comprehensive Q & A | Grade A | 100%
Correct -The Ultimate Guide for Yr. (2026/2027)
(Answer Key at the Last Page)
QUESTION 1
A patient with essential hypertension might have pressures of
200/120 mm Hg. This hypertensive state could result in all of
the following changes except ________.
a. Increased incidence of coronary artery disease
b. Decreased size of heart muscle
c. Increased damage to blood vessel endothelium
d. Increased work of the left ventricle
QUESTION 2
A thrombus (blood clot) in the first branch of the arch of the
aorta would affect the flow of blood to the ________.
a. Myocardium of the heart
b. Right side of the head and neck and right upper arm
c. Left side of the head and neck
d. Left upper arm
QUESTION 3
Aldosterone will ________.
a. Result in a larger output of urine
b. Decrease sodium reabsorption
c. Promote an increase in blood pressure
d. Promote a decrease in blood volume
QUESTION 4
, Arteriolar blood pressure increases in response to all but which
of the following?
a. Increasing stroke volume
b. Falling blood volume
c. Rising blood volume
d. Increasing heart rate
e. All of these
QUESTION 5
Blood flow to the skin ________.
a. Increases when environmental temperature rises
b. Increases when body temperature drops so that the skin
does not freeze
c. Is controlled mainly by decreasing pH
d. Is not an important source of nutrients and oxygen for skin
cells
QUESTION 6
Brain blood flow autoregulation ________.
a. Is less sensitive to pH than to a decreased oxygen level
b. Is controlled by cardiac centers in the pons
c. Is abolished when abnormally high CO2 levels persist
d. Causes constriction of cerebral blood vessels in response
to a drop in systemic blood pressure
QUESTION 7
Cerebral blood flow is regulated by ________.
a. Skin temperature
b. The hypothalamic “thermostat”
c. ADH
d. Intrinsic autoregulatory mechanisms
QUESTION 8
Factors that aid venous return include all except ________.
a. Activity of skeletal muscles
b. Urinary output
#10 (HEART) Comprehensive Q & A | Grade A | 100%
Correct -The Ultimate Guide for Yr. (2026/2027)
(Answer Key at the Last Page)
QUESTION 1
A patient with essential hypertension might have pressures of
200/120 mm Hg. This hypertensive state could result in all of
the following changes except ________.
a. Increased incidence of coronary artery disease
b. Decreased size of heart muscle
c. Increased damage to blood vessel endothelium
d. Increased work of the left ventricle
QUESTION 2
A thrombus (blood clot) in the first branch of the arch of the
aorta would affect the flow of blood to the ________.
a. Myocardium of the heart
b. Right side of the head and neck and right upper arm
c. Left side of the head and neck
d. Left upper arm
QUESTION 3
Aldosterone will ________.
a. Result in a larger output of urine
b. Decrease sodium reabsorption
c. Promote an increase in blood pressure
d. Promote a decrease in blood volume
QUESTION 4
, Arteriolar blood pressure increases in response to all but which
of the following?
a. Increasing stroke volume
b. Falling blood volume
c. Rising blood volume
d. Increasing heart rate
e. All of these
QUESTION 5
Blood flow to the skin ________.
a. Increases when environmental temperature rises
b. Increases when body temperature drops so that the skin
does not freeze
c. Is controlled mainly by decreasing pH
d. Is not an important source of nutrients and oxygen for skin
cells
QUESTION 6
Brain blood flow autoregulation ________.
a. Is less sensitive to pH than to a decreased oxygen level
b. Is controlled by cardiac centers in the pons
c. Is abolished when abnormally high CO2 levels persist
d. Causes constriction of cerebral blood vessels in response
to a drop in systemic blood pressure
QUESTION 7
Cerebral blood flow is regulated by ________.
a. Skin temperature
b. The hypothalamic “thermostat”
c. ADH
d. Intrinsic autoregulatory mechanisms
QUESTION 8
Factors that aid venous return include all except ________.
a. Activity of skeletal muscles
b. Urinary output
