Platelets are produced from cells called ________.
A. myeloid stem cell
B. hemocytes
C. lymphoid stem cell
D. megakaryocytes
Answer: D
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The primary nutrient source for early embryonic development that later becomes an important site for blood formation is the
A) amniotic fluid. B) placenta. C) basal decidua. D) umbilical vein. E) yolk sac.
The lambdoidal suture is formed by the joining of the:
a. occipital bone and the temporal bones b. temporal bones and the frontal bone c. parietal bones and the occipital bone d. parietal bones and the frontal bone
Sperm are matured and ejaculated from the epididymis and ductus deferens, which are the terminal portions of the male duct system
Indicate whether the statement is true or false
What fontanel is present at birth and is between the frontal and parietal bones where the frontal, coronal, and sagittal sutures intersect?
A) mastoid B) posterior C) sphenoidal D) anterior