Which of the following best describes nerve signals?
A. They travel fastest in small unmyelinated fibers.
B. They travel fastest in large unmyelinated fibers.
C. They travel fastest in small myelinated fibers.
D. They travel fastest in large myelinated fibers.
E. They travel at the same speed in all nerve fibers.
D. They travel fastest in large myelinated fibers.
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Small organs associated with lymphatic vessels are termed ________.
A) lymph follicles B) lymph nodes C) axillary nodes D) cisterna chyli
Which chemical messenger is released by the immune system?
a. orexin b. melanin c. ACTH d. CRH e. Cachetin
Red blood cells placed in a hypotonic solution will ________
A) lose water and undergo hemolysis B) gain water and undergo hemolysis C) gain water and undergo crenation D) lose water and undergo crenation
The pancreas has dual function as both an ___________ gland and an _____________ gland
Fill in the blank(s) with the appropriate word(s).