The joint formed by the axis and atlas that permits the "no" shaking of the head is a ________ joint.
A. plane
B. pivot
C. hinge
D. condylar
E. saddle
Answer: B
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Observing a karyotype for a fetus, an obstetrician notices that for the 16th chromosome, there are 3 structures shown. What sort of chromosomal abnormality does this fetus have?
A. Polyploidy B. Incomplete dominance C. A monosomy D. A trisomy
The ____ (kneecap) is the largest sesamoid bone in the human body
a. patella b. scapula c. fibula d. tibia
What is the function of prolactin in females?
A. Regulates the gonadotropins B. Stimulates milk production in the mammary glands C. Regulates water and electrolyte balance in the kidneys D. All of the choices are correct.
The mechanism for concentration of urine is called the _____________ mechanism
A. countercurrent B. filtration C. secretion D. reabsorption E. concentration