The shoulder and hip are examples of ____ joints
a. hinge
b. condyloid
c. ball-and-socket
d. saddle
c
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Which of these chemicals dissociates completely and liberates all the hydrogen ions when dissolved in water?
A) strong acids B) weak acids C) neutral substances D) weak bases E) strong bases
At what length do you think this muscle would be able to lift the heaviest weight?
What will be an ideal response?
A ________ is a relatively immovable fibrous joint that holds skull bones together.
Fill in the blank(s) with the appropriate word(s).
Triggering of the muscle action potential occurs after
A) acetylcholine binds to chemically-gated channels in the motor end plate. B) acetylcholinesterase is released from synaptic vesicles into the synaptic cleft. C) calcium ion binds to channels on the motor end plate. D) the action potential jumps across the neuromuscular junction. E) Any of these can produce an action potential in the muscle cell.