Which muscle inserts on the tuberosity of the radius?
A) brachialis
B) biceps brachii
C) brachioradialis
D) lateral head of the triceps brachii
B
Explanation:
A) The brachialis inserts on the tuberosity of the ulna.
C) The brachioradialis inserts on the styloid process of the radius.
D) The lateral head of the triceps brachii inserts on the olecranon of the ulna.
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a. 4.8 b. 9.6 c. 14.4 d. 19.2 e. 24
Acetylcholine ________.
A. can bind to nicotinic receptors B. is always an excitatory neurotransmitter C. can bind to adrenergic receptors D. is an inhibitory neurotransmitter released by motor neurons
When an enzyme's conformational change results in the enzyme hugging the substrate in its active site, the action is referred to as the ________ model of enzyme function.
What will be an ideal response?
Which of the following is involved in the process of muscle relaxation
a. acetylcholinesterase destroys acetylcholine to allow the muscle membrane to return to resting potential. b. Ca2+ is actively taken up by the lateral sacs of the sarcoplasmic reticulum when there is no longer a local action potential. c. the cross bridges from the thick filaments bind to the thin filaments and bend in such a way as to return the filaments to their original resting position. d. both (a) and (b) above. e. all of these answers.