A&P Exam 1 - Guyton & Hall Ques ons and answers-Ch.
1 , 2, 4, 5 - Check out Ch. 4 and 5 for the ques ons with
pictures| new 2026
What is the most abundant type of cell in the human body?
A. Neuron
B. Epithelial cell
C. Red blood cell
D. White blood cell
E. Vascular smooth muscle cell
F. Skeletal muscle cell
C
The most abundant substance in the human body and the approximate percentage of that
substance in
the body is which of the following?
A. Protein, 30%
B. Protein, 60%
C. Water, 30%
D. Water, 60%
E. Carbohydrate, 30%
F. Carbohydrate, 60%
D
A large volume of blood is transfused to a person whose baroreceptor blood pressure control
system is
not func-oning. Arterial blood pressure rises from the normal level of 100 to 160 mm Hg. If the
same
volume of blood is infused into the same person when the baroreceptor system is func-oning,
and this
-me the arterial pressure increases from the normal level of 100 mm Hg up to 120 mm Hg,
what is the
gain of the baroreceptor system?
A. -3
B. -2
,C. -1
D. 0
E. +1
F. +2
G. +3
B
Which of the following substances has the highest extracellular fluid to intracellular fluid
concentra-on ra-o for most mammalian cells?
A. Sodium ions
B. Potassium ions
C. Carbon dioxide
D. Glucose
E. Protein
A
Exchange of substances between the cardiovascular system and the inters--al fluid occurs
mainly in
which of the following?
A. Arteries
B. Arterioles
C. Capillaries
D. Venules
E. Veins
C
What is the approximate distance from the capillaries to most cells of the body?
A. Less than 50 angstroms
B. Less than 50 microns
C. Less than 50 millimeters
D. Less than 100 angstroms
E. Less than 100 microns
F. Less than 100 millimeters
A
When a person is at rest, how much -me is required for the blood in the circula-on to traverse
the
en-re circulatory circuit?
, A. 1 second
B. 1 minute
C. 3 minutes
D. 4 minutes
E. 5 minutes
B
______ feedback is o;en referred to as a "vicious cycle" because it leads to _______ instability
and
some-mes death.
A. Posi-ve, progressive
B. Posi-ve, diminished
C. Nega-ve, progressive
D. Nega-ve, diminished
E. Adap-ve, progressive
A
Which of the following is an example of posi-ve feedback in the body?
A. Clo=ng of blood
B. Return of blood pressure toward normal a;er a hemorrhage
C. Increased respira-on rate caused by accumula-on of carbon dioxide in the blood
D. Decreased sympathe-c nervous system ac-vity that occurs in response to increased blood
pressure
A
Which of the following is an example of a "feed forward" control system?
A. The arterial baroreceptor system
B. The progressive nature of uterine contrac-ons during childbirth
C. Control of skeletal muscle movements by the brain
D. Genera-on of an ac-on poten-al
C
Which of the following statements about homeostasis is incorrect?
A. It refers to the maintenance of a stable internal environment for the body
B. Homeosta-c mechanisms do not operate in diseases
C. Homeostasis requires integrated ac-ons of the cells, -ssues, organs, and mul-ple nervous,
hormonal, and local control systems
D. Homeosta-c compensa-ons that begin a;er a major environmental challenge may
1 , 2, 4, 5 - Check out Ch. 4 and 5 for the ques ons with
pictures| new 2026
What is the most abundant type of cell in the human body?
A. Neuron
B. Epithelial cell
C. Red blood cell
D. White blood cell
E. Vascular smooth muscle cell
F. Skeletal muscle cell
C
The most abundant substance in the human body and the approximate percentage of that
substance in
the body is which of the following?
A. Protein, 30%
B. Protein, 60%
C. Water, 30%
D. Water, 60%
E. Carbohydrate, 30%
F. Carbohydrate, 60%
D
A large volume of blood is transfused to a person whose baroreceptor blood pressure control
system is
not func-oning. Arterial blood pressure rises from the normal level of 100 to 160 mm Hg. If the
same
volume of blood is infused into the same person when the baroreceptor system is func-oning,
and this
-me the arterial pressure increases from the normal level of 100 mm Hg up to 120 mm Hg,
what is the
gain of the baroreceptor system?
A. -3
B. -2
,C. -1
D. 0
E. +1
F. +2
G. +3
B
Which of the following substances has the highest extracellular fluid to intracellular fluid
concentra-on ra-o for most mammalian cells?
A. Sodium ions
B. Potassium ions
C. Carbon dioxide
D. Glucose
E. Protein
A
Exchange of substances between the cardiovascular system and the inters--al fluid occurs
mainly in
which of the following?
A. Arteries
B. Arterioles
C. Capillaries
D. Venules
E. Veins
C
What is the approximate distance from the capillaries to most cells of the body?
A. Less than 50 angstroms
B. Less than 50 microns
C. Less than 50 millimeters
D. Less than 100 angstroms
E. Less than 100 microns
F. Less than 100 millimeters
A
When a person is at rest, how much -me is required for the blood in the circula-on to traverse
the
en-re circulatory circuit?
, A. 1 second
B. 1 minute
C. 3 minutes
D. 4 minutes
E. 5 minutes
B
______ feedback is o;en referred to as a "vicious cycle" because it leads to _______ instability
and
some-mes death.
A. Posi-ve, progressive
B. Posi-ve, diminished
C. Nega-ve, progressive
D. Nega-ve, diminished
E. Adap-ve, progressive
A
Which of the following is an example of posi-ve feedback in the body?
A. Clo=ng of blood
B. Return of blood pressure toward normal a;er a hemorrhage
C. Increased respira-on rate caused by accumula-on of carbon dioxide in the blood
D. Decreased sympathe-c nervous system ac-vity that occurs in response to increased blood
pressure
A
Which of the following is an example of a "feed forward" control system?
A. The arterial baroreceptor system
B. The progressive nature of uterine contrac-ons during childbirth
C. Control of skeletal muscle movements by the brain
D. Genera-on of an ac-on poten-al
C
Which of the following statements about homeostasis is incorrect?
A. It refers to the maintenance of a stable internal environment for the body
B. Homeosta-c mechanisms do not operate in diseases
C. Homeostasis requires integrated ac-ons of the cells, -ssues, organs, and mul-ple nervous,
hormonal, and local control systems
D. Homeosta-c compensa-ons that begin a;er a major environmental challenge may
