Which structure anchors the thecal sac and conus medullaris to the coccyx?
A. Denticulate ligaments
B. Pia mater
C. Filum terminale
D. Cauda equina
Answer: C
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The specific strip of skin that is innervated by a specific spinal nerve is called a
A) root. B) ramus. C) trunk. D) ganglion. E) dermatome.
Norepinephrine (NE) is released from sympathetic fibers in response to a sudden drop in mean arterial pressure (MAP). What does NE do to help return MAP to normal?
A. NE release increases total peripheral resistance leading to an increase in MAP B. NE acts on cells of the SA node to increase contractility C. NE release at ventricular cells increases the force of contraction and decreases the duration of systole D. NE stimulates the release of epinephrine from the adrenal medulla E. NE released at the SA node increases the slope of the pacemaker potential F. NE causes vasodilation of many arterioles leading to increased MAP
MyPlate depicts fruits and vegetables occupying ________ of the plate.
A. one-tenth B. one-fourth C. nine-tenths D. one-half
The sum of all chemical reactions that occur in the body is known as ________.
A. catabolism B. anabolism C. absorption D. digestion E. metabolism