Which one of the following is not involved in sending the vibrational signal to the inner ear?
a. external auditory meatus
b. eustachian tube
c. malleus
d. stapes
e. tympanum
B
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During implantation, the
A) trophoblast erodes a path through the endometrium. B) inner cell mass begins to form the placenta. C) maternal blood vessels in the endometrium are walled off from the blastocyst. D) entire trophoblast becomes syncytial. E) inner cell mass is temporarily deprived of nutrients.
Which is not an effector innervated by the autonomic nervous system?
A. Cardiac muscle B. Smooth muscle C. Glands D. Skeletal muscle E. None of the choices is correct.
The __________________ __________________ within the medulla acts as a countercurrent exchanger.
Fill in the blank(s) with the appropriate word(s).
Which muscle originate on the phalanges?
A) All the wrist flexors. B) All the wrist extensors. C) No muscles originate on the phalanges. D) All the wrist adductors. E) All the wrist abductors.