After watching Olympic gymnasts on TV, Joey tries to do the "splits" but ends up injuring his groin. Which muscle group has he likely pulled?
A. Quadriceps femoris
B. Adductors
C. Rotator cuff
D. Triceps surae
Answer: B
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A. forms the chorionic villi. B. replaces the syncytiotrophoblast. C. remains throughout development. D. forms branches that protrude into the amniotic cavity. E. is not an embryonic part of the placenta.
The prefix hypo- means ________, whereas hyper- means ________.
A. front; back B. clear; dark C. below; above D. inside; outside E. right; left
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A. Filtration B. Active transport C. Facilitated diffusion D. Simple diffusion E. Osmosis
Conscious and subconscious motor commands control skeletal muscles by traveling over all of the following except the
A) corticospinal pathway. B) medial pathway. C) lateral pathway. D) corticobulbar pathway. E) spinothalamic pathway.