Which of the following pairs is mismatched?
A. Neural crest cells - peripheral nervous system, skin pigment, tissues of the face
B. Ectoderm - skin
C. Neuroectoderm - nervous system
D. Endoderm - bone
E. Mesoderm - muscle
Answer: D
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Which of these organs is an organ of the digestive system?
A. Lymph node B. Spleen C. Small intestine D. Thymus
Assuming that the right and left renal arteries arise separately, generally the third vessel to branch off the abdominal descending aorta is the left renal artery.
Answer the following statement true (T) or false (F)
The first phase in hemostasis is
A. vascular spasm. B. elimination of clots. C. coagulation. D. platelet plug formation.
The overall recovery rate for idiopathic facial nerve paralysis (Bell palsy) averages about ________ percent, and does not appear to be related to its treatment.
A. 70 B. 10 C. 80 D. 20 E. 50