Which skeletal muscle serves as an accessory respiratory muscle?
a. rectus abdominus.
b. diaphragm.
c. external intercostal.
d. internal intercostal.
e. none of the above
A
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____________________________________ consist of fats and oils
Fill in the blank(s) with correct word
Which of the following characteristics associated with twitch summation allows for maximal contraction force?
a. high levels of NE in the synapse b. lower frequency of action potentials in the sarcolemma c. increased movement of calcium into the sarcoplasmic reticulum d. rapid rise of calcium in the cytosol e. longer latent periods of contractions
The pain a person experiences with acute appendicitis results from stimulating nerve endings called ________.
A. visceroreceptors B. appendoreceptors C. painreceptors D. internoreceptors E. proprioceptors
When the bladder wall is distended as a result of urine accumulation, the stretch receptors are stimulated and send afferent impulses to the spinal cord that
a. stimulate parasympathetic nerves, which return to the bladder and cause it to contract. b. inhibit the motor neurons that normally keep the external urethral sphincter closed. c. stimulate nerves that go to the kidney and prevent glomerular filtration until the bladder is empty. d. both (a) and (b) above. e. all of these answers.