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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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.
The prefix hypo- means ________, whereas hyper- means ________.
A. front; back B. clear; dark C. below; above D. inside; outside E. right; left
The cytotrophoblast
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.
Which process would stop if a person ingested a poison that interfered with ATP production?
A. Filtration B. Active transport C. Facilitated diffusion D. Simple diffusion E. Osmosis