Which of the following most aptly describes "muscle insertion"?
A) broad tendon sheet
B) connective tissue that surrounds a single muscle fiber
C) tendon attachment that doesn't move
D) tendon attachment that moves
E) connective tissue that surrounds an entire muscle
Answer: D
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Conduction of action potentials along an axon is termed saltatory conduction because the action potential
A) Is dependent on the ions Na+ and K+ portions of salts. B) Appears to leap or jump from node to node. C) Is named after Johan Saltare, who first discovered it. D) Moves very rapidly down the axon.
This figure shows the pituitary gland. Which number indicates the pars tuberalis?
A. 1 B. 2 C. 3 D. 4 E. 6
Neostigmine, used to treat myasthenia gravis, blocks the enzyme that degrades ________. This helps treat the disease because ________.
A. nicotine; it destroys the antibodies that block nicotinic ACh receptors on the motor end plate B. acetylcholine; it destroys the antibodies that block nicotinic ACh receptors on the motor end plate C. acetylcholine; it increases the amount of acetylcholine available to bind to receptors on the motor end plate D. norepinephrine; it increases the amount of acetylcholine available to bind to receptors on the motor end plate
The study of the muscular system is known as ________
A) myology B) kinesiology C) neurology D) pathophysiology E) biology