A&P II Exam 1 Test Questions with
Guaranteed Pass Solutions.
A differentiating red blood cell would normally:
a.) lose its nucleus after getting into circulation
b.) begin accumulating hemoglobin while still a stem cell
c.) change its shape before getting into circulation
d.) all of the above - Answer c.) change its shape before getting into circulation
Which of the following sites will old platelets be stored temporarily as a reserve against a major
blood loss event?
a.) bone marrow
b.) liver
c.) spleen
d.) pituitary - Answer c.) spleen
The involuntary cardiac centers in the human brain are located in the:
a.) cerebrum
b.) cerebellum
c.) medulla
d.) pons - Answer c.) medulla
The body reacts to changes in blood gas levels by changing cardiac output and blood flow
patterns. What type of receptors send information so that the body can react to changing blood
CO2 levels?
a.) baroreceptors
b.) chemoreceptors
c.) proprioreceptors
d.) none of the above - Answer b.) chemoreceptors
Which of the following decrease the rate of the heart beating?
a.) increased blood volume returning to the heart
b.) increased sympathetic stimulation
c.) increased parasympathetic stimulation
d.) decreased end systolic volume - Answer c.) increased parasympathetic stimulation
, The papillary muscle contracts when:
a.) the atrium contracts
b.) the AV valve needs to close
c.) slightly after the start of ventricular contraction
d.) the AV valve needs to be open - Answer c.) slightly after the start of ventricular
contraction
When increased blood volume is needed for the brain, which of the following circuits might be
expected to be seeing increased flow?
a.) coronary
b.) pulmonary
c.) systemic
d.) all of the above - Answer c.) systemic
When the sympathetic system is activated, which of the following is true?
a.) more blood will be returning to the right atrium
b.) the end systolic volume will be highest
c.) cardiac output will not change
d.) epinephrine levels will decrease - Answer a.) more blood will be returning to the right
atrium
The ventricle contracts with a greater force when:
a.) the end diastolic volume is low
b.) the end systolic volume is large
c.) the stretch receptors in the ventricle are activated
d.) blood pressure in the aorta is at normal levels - Answer c.) the stretch receptors in the
ventricle are activated
Pressure in the aorta is highest when:
a.) the ventricle is in diastole
b.) the ventricle is in systole
c.) the atrium is in diastole
d.) b and c - Answer d.) b and c
Guaranteed Pass Solutions.
A differentiating red blood cell would normally:
a.) lose its nucleus after getting into circulation
b.) begin accumulating hemoglobin while still a stem cell
c.) change its shape before getting into circulation
d.) all of the above - Answer c.) change its shape before getting into circulation
Which of the following sites will old platelets be stored temporarily as a reserve against a major
blood loss event?
a.) bone marrow
b.) liver
c.) spleen
d.) pituitary - Answer c.) spleen
The involuntary cardiac centers in the human brain are located in the:
a.) cerebrum
b.) cerebellum
c.) medulla
d.) pons - Answer c.) medulla
The body reacts to changes in blood gas levels by changing cardiac output and blood flow
patterns. What type of receptors send information so that the body can react to changing blood
CO2 levels?
a.) baroreceptors
b.) chemoreceptors
c.) proprioreceptors
d.) none of the above - Answer b.) chemoreceptors
Which of the following decrease the rate of the heart beating?
a.) increased blood volume returning to the heart
b.) increased sympathetic stimulation
c.) increased parasympathetic stimulation
d.) decreased end systolic volume - Answer c.) increased parasympathetic stimulation
, The papillary muscle contracts when:
a.) the atrium contracts
b.) the AV valve needs to close
c.) slightly after the start of ventricular contraction
d.) the AV valve needs to be open - Answer c.) slightly after the start of ventricular
contraction
When increased blood volume is needed for the brain, which of the following circuits might be
expected to be seeing increased flow?
a.) coronary
b.) pulmonary
c.) systemic
d.) all of the above - Answer c.) systemic
When the sympathetic system is activated, which of the following is true?
a.) more blood will be returning to the right atrium
b.) the end systolic volume will be highest
c.) cardiac output will not change
d.) epinephrine levels will decrease - Answer a.) more blood will be returning to the right
atrium
The ventricle contracts with a greater force when:
a.) the end diastolic volume is low
b.) the end systolic volume is large
c.) the stretch receptors in the ventricle are activated
d.) blood pressure in the aorta is at normal levels - Answer c.) the stretch receptors in the
ventricle are activated
Pressure in the aorta is highest when:
a.) the ventricle is in diastole
b.) the ventricle is in systole
c.) the atrium is in diastole
d.) b and c - Answer d.) b and c
