BSC2086c - Exam 1 - Quiz 3 Questions and Answers with Verified Solutions | Latest Update

BSC2086c - Exam 1 - Quiz 3 Questions and Answers with Verified
Solutions | Latest Update


QUESTION
The anterior communicating artery of the cerebral arterial circle connects the
A. posterior cerebral arteries.
B. basilar artery and the internal carotid artery.
C. posterior communicating artery and the middle cerebral artery.
D. vertebral arteries.
E. anterior cerebral arteries.

Answer:
E. anterior cerebral arteries.

QUESTION
A venule becomes a vein when its diameter is greater than_________ micrometers.
A. 1
B. 10
C. 1000
D. 100

Answer:
D. 100

QUESTION
One of the unhealthy effects of blood doping is to
A. decrease the oxygen carrying capacity of the blood.
B. increase the oxygen carrying capacity of the blood.
C. increase the viscosity of the blood.
D. decrease the blood pressure in the arteries.
E. increase the carbon dioxide carrying capacity of the blood.

Answer:
C. increase the viscosity of the blood.

, QUESTION
What is the sequence of events in the transmission of an impulse through the heart muscle? a: AV
node b: AV bundle c: SA node d: Through the atria e: Through the ventricles f: Bundle branches
g: Purkinje fibers
A. f, g, d, c, b, a, e
B. c, d, a, f, b, g, e
C. d, b, a, c, f, g, e
D. c, d, a, b, f, g, e
E. b, a, d, c, f, g, e

Answer:
D. c, d, a, b, f, g, e

QUESTION
Tissue damage can trigger local release of histamine, which can
A. inhibit release of nitric oxide, a vasoconstrictor.
B. stimulate release of nitric oxide, a vasodilator.
C. inhibit release of nitric oxide, a vasodilator.
D. stimulate release of nitric oxide, a vasoconstrictor.

Answer:
B. stimulate release of nitric oxide, a vasodilator.

QUESTION
In hematopoiesis, granulocytes such as neutrophils are formed from the_________ line.
A. myeloid
B. killer cell
C. monocyte
D. lymphoid

Answer:
A. myeloid