Tendinous intersections
a. attach the rectus abdominis muscles to the xiphoid process
b. divide the rectus abdominis muscles into segments
c. separate the abdominal wall from the thigh
d. are the sites where blood vessels exit the abdomen into the thigh
e. are the central point of attachment for all the abdominal muscles
Answer: b. divide the rectus abdominis muscles into segments
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When an action potential reaches the presynaptic terminal,
A. calcium ions diffuse into the presynaptic terminal through voltage-gated ion channels. B. acetylcholine moves into the presynaptic terminal. C. a local potential is generated in the presynaptic terminal. D. ligand-gated ion channels in the presynaptic terminal are opened. E. nothing else happens.
The alpha rhythm is the most prominent EEG pattern when an adult is
A. in REM sleep. B. in non-REM sleep. C. awake and relaxed with eyes open. D. awake and thinking hard about something.
Negative feedback is bad for the body because it increases a change away from normal.
Answer the following statement true (T) or false (F)
In skeletal muscle, the term that describes the alternating light and dark bands is ________
A) strabismus B) striations C) myofibrils D) tetanus E) myoblasts