The ________ are considered the opening from the oral cavity to the oropharynx.
A. conchae
B. glossus
C. choana
D. fauces
E. fossae
Answer: D
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Which of the following statements regarding myosin in skeletal muscle is TRUE?
A. Troponin covers the binding site on myosin molecules until Ca2+ binds to troponin to remove it from its blocking position. B. The rate of ATP hydrolysis by myosin is the same in all types of skeletal muscle. C. All of the myosin cross-bridge heads in a thick filament are oriented and rotate in the same direction. D. Myosin cross-bridge heads contain two binding sites, one for actin and one for tropomyosin. E. Myosin is an ATPase.
The expected response to the triceps-jerk reflex is
A) plantar flexion. B) plantar extension. C) extension of the forearm. D) flexion of the forearm.
The stretch of a full urinary bladder is detected by a(n):
A) exteroceptor. B) photoreceptor. C) thermoreceptor. D) interoceptor.
Leather is made of the ________ layer of the dermis.
A. keratin B. papillary C. areolar D. collagen E. reticular