At rest, nerve cells have a voltage of ________ mV.
Fill in the blank(s) with the appropriate word(s).
-70 (Note to instructor: All nerve cells are different, so you may wish to accept a range of similar values instead of insisting on precisely this value.)
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The hormone that decreases the concentration of calcium in the blood is
a. thyroxine b. tri-iodothyronine c. calcitonin d. both a and b e. all of the above
Arrange the following list of membranes in correct sequence. (1) tectorial membrane (2) vestibular membrane (3) tympanic membrane (4) basilar membrane
A. 1, 2, 3, 4 B. 3, 4, 1, 2 C. 3, 2, 4, 1 D. 2, 4, 3, 1 E. 4, 3, 2, 1
In human skeletal muscle, force generation capability is highest in which of the following conditions?
A. muscle is at resting length B. muscle is slightly shortened C. muscle is slightly lengthened D. muscle length is irrelevant to force production
The primary curves of the vertebral column that develop before birth are the
A) cervical and lumbar. B) cervical and thoracic. C) cervical and sacral. D) thoracic and sacral. E) thoracic and lumbar.