The fetal portion of the placenta forms from the
A. inner cell mass.
B. chorion.
C. yolk sac.
D. blastocoel.
E. amnion.
Answer: B
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Which of the following would most likely control an increase in gastric activity?
A) Parasympathetic nervous system B) Hypothalamus C) Medulla Oblongata D) Sympathetic nervous system
The optic nerve passes through which structure?
A) superior orbital fissure B) inferior orbital fissure C) optic canal D) internal optic meatus E) external acoustic meatus
Spermiogenesis is the last stage of meiosis
Indicate whether the statement is true or false
Cardiac output is the amount of blood that is pumped
A. by the left ventricle into the aorta in one beat. B. by a single ventricle in one minute. C. by both ventricles in one minute. D. by a single ventricle in one hour. E. by both ventricles in one hour.