What is the relative percentage of body weight from each of the four tissue types?
A) epithelial 50%, connective 45%, muscle 3%, and nervous 2%
B) epithelial 45%, connective 50%, muscle 2%, and nervous 3%
C) epithelial 2%, connective 45%, muscle 50%, and nervous 3%
D) epithelial 3%, connective 2%, muscle 50%, and nervous 45%
E) epithelial 3%, connective 45%, muscle 50%, and nervous 2%
Answer: E
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A. Labia minora B. Labia majora C. Clitoris D. Urethra E. Vagina
The major importance of regulating ECF osmolarity is
a. to help maintain blood pressure b. to prevent the urine from becoming too concentrated c. to prevent fluid shifts between cells and the ECF, which could produce profound symptoms as the cells swell or shrink d. to prevent spontaneous depolarization of nerve and muscle cell membranes because of shifts in Na+ balance e. to prevent an acid-base imbalance if the hydrogen ions were to become too concentrated or too dilute in the body fluids
The arrector pili muscles receive their sympathetic innervation via the
A. splanchnic nerve pathway. B. adrenal medulla pathway. C. postganglionic sympathetic nerve pathway. D. spinal nerve pathway. E. None of the choices is correct.
Increased activity in the neurons in the dorsal respiratory group is associated with:
A. high lung volume B. high levels of CO2 in the blood C. high levels of O2 in the blood D. breath holding