Of the following, which is an elastic artery?
A) the subclavian
B) the external carotid
C) the brachial
D) the femoral
E) the ulnar
(
Question 2) Testosterone is secreted by the
A) hypothalamus.
B) anterior pituitary.
C) nurse cells.
D) interstitial endocrine cells.
E) adrenal cortex.
(
Question 3) Which of the following vessels changes diameter most readily to local conditions or SNS stimulation?
A) elastic arteries
B) arterioles
C) fenestrated capillaries
D) venules
E) veins
(
Question 4) Secondary spermatocytes each contain
A) 23 chromosomes.
B) 23 pairs of chromosomes.
C) twice the diploid number of chromosomes.
D) 46 pairs of chromosomes.
E) 46 chromosomes.
(
Question 5) Venae cavae are the largest of what type of vessel?
A) artery
B) arteriole
C) capillary
D) venule
E) vein
(
Question 6) In a mature human sperm, the
A) acrosome is next to the flagellum.
B) midpiece contains the chromosomes.
C) tail contains the mitochondria.
D) head contains 23 chromosomes.
E) head is diploid.
(
Question 7) Venous valves are responsible for
A) preventing anterograde flow.
B) channeling blood away from the heart.
C) channeling blood toward the heart.
D) preventing blood from re-entering a ventricle.
E) regulating blood pressure in veins.
(
Question 8) During meiosis I, maternal and paternal chromosomes come together during the process called ________ to form a ________.
A) synapsis; chromatid
B) prophase I; chromatid
C) synapsis; spermatid
D) metaphase II; tetrad
E) synapsis; tetrad
(
Question 9) Venoconstriction ________ the amount of blood within the venous system, which ________ the volume in the arterial and capillary systems.
A) doubles; decreases
B) reduces; increases
C) decreases; doubles
D) increases; reduces
E) reduces; reduces
(
Question 10) Sperm are functionally matured within the
A) epididymis.
B) straight tubules.
C) rete testes.
D) seminiferous tubules.
E) seminal gland (seminal vesicle).
Quick Reply
