General Physiology
1. The most abundant type of cell in the human body is which of the following?
A. Neuron
B. Epithelial cell
C. Red blood cell
D. White blood cell
E. Vascular smooth muscle cell
Skeletalmuscle
ANSWER: C
1. The most abundant substance in the human body and the approximate percentage ofthat
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,
ANSWER: D
1. A large volume of blood is transfused to a person whose baroreceptor blood pressure control
system is not functioning and 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 functioning and this time the arterial pressure increases from the normal level from
100 mm
Hg up to 120 mm Hg, calculate the gain of the baroreceptor system in this person.
A. -3
B. -2
C. -1
D. 0
ANSWER: B
1. Which of the following substances has the highest extracellular fluid to intracellular fluid
concentration ratio for most mammalian cells?
, A. Sodium ions
B. Potassium ions
C. Carbon dioxide
D. Glucose
E. Protein
ANSWER: A
1. Exchange of substances between the cardiovascular system and the interstitial fluid occurs
mainly in which of the following?
A. Arteries
B. Arterioles
C. Capillaries
D. Venules
Veins
ANSWER: C
1. Which of the following is the approximate distance from the capillaries to most cellsof 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
Lessthan100
ANSWER: A
1. When a person is at rest, how much time is required for the blood in the circulation to
traverse the entire circulatory circuit?
A. 1 second
B. 1 minute
C. 3 minutes
D. 4 minutes
E. 5
ANSWER: B
1. ______________ feedback is often referred to as a "vicious cycle" because it leads to
instability and sometimes death.___________________
A. Postitive, progressive