According to the sliding filament model, in order for a sarcomere to contract:
a. bridges must form between the actin and myosin
b. calcium must be released from the endoplasmic reticulum
c. ATP must be broken down for energy
d. all of the above
d. all of the above
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The presence of fatty chyme in the small intestine stimulates it to release _______, which causes the
A. gastrin, liver to secrete an alkaline solution. B. CCK, gallbladder to release bile. C. CCK, stomach to increase gastric secretion. D. secretin, stomach to increase motility. E. secretin, pancreas to release acidic pancreatic juice.
When an atom loses an electron it is called a(n) _____; when an atom gains an electron it is called a(n) ______.
Fill in the blank(s) with the appropriate word(s).
Which of the following is the inner germ layer?
A) endoderm B) ectoderm C) mesoderm D) epiblast
Which of the following correctly describes the vestibular projection pathway to the brain?
A. Vestibular nerve - vestibulocochlear nerve - vestibular nuclei - thalamus - cerebral cortex B. Vestibulocochlear nerve - vestibular nerve - vestibular nuclei - thalamus - cerebral cortex C. Vestibular nerve - vestibulocochlear nerve - thalamus - vestibular nuclei - cerebral cortex D. Vestibulocochlear nerve - vestibular nerve - thalamus - vestibular nuclei - cerebral cortex