Which of the following descriptions best matches the term external intercostal?
A) accessory muscle of expiration
B) accessory muscle of inspiration
C) primary muscle of inspiration
D) primary muscle of expiration
E) an accessory muscle for both expiration and inspiration
C
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Which of the following hormones is responsible for the development and maintenance of the secondary sexual characteristics?
a. testosterone b. estrogen c. progesterone d. both testosterone and estrogen. e. all of these answers.
Which is the proper order of events in cell-mediated immunity?(1) Cloning of cytotoxic T cells and memory T cells(2) Antigen presented to T lymphocyte(3) Activation of T lymphocytes(4) Cytotoxic T cells attack target cells
A. 1, 4, 2, 3 B. 2, 3, 4, 1 C. 3, 2, 4, 1 D. 2, 3, 1, 4 E. 1, 2, 3, 4,
The fibrous strand or filum terminale that anchors the inferior end of the spinal cord to the coccyx is a continuation of the
A) arachnoid mater. B) dorsal root ganglion. C) epidural mater. D) pia mater.