Thigh muscles that attach to the medial side of the pelvis ________ the thigh at the hip joint.
A. adduct
B. flex
C. abduct
D. abduct and rotate
E. extend
Answer: A
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The increase in muscle tension that occurs with an increase in the intensity (voltage) of a stimulus is called
A. recruitment. B. treppe. C. wave summation. D. incomplete tetany.
The apneustic center
a. is located in the medulla. b. stimulates the inspiratory neurons. c. inhibits inspiratory activity. d. both (a) and (b) above. e. both (a) and (c) above.
The cell type that is responsible for maintaining bone once it has been formed is the ________.
A. osteocyte B. chondrocyte C. chondroblast D. osteoblast E. osteoclast
First messengers may bind to a membrane receptor that is an ion channel, which promotes a change in membrane polarity
Indicate whether the statement is true or false.