Which of the following is not a component of a reflex arc?
A. Somatic receptors
B. Efferent nerve fibers
C. Integrating center
D. Afferent nerve fibers
E. Motor neurons in the cerebral cortex
Answer: E
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Which of these is commonly classified as a female secondary sex characteristic?
A. The ovary B. The labia majora C. The uterus D. The distribution of body fat E. The vagina
The structure that produces a thin, milk-colored fluid that composes about 30% of the seminal fluid volume is the:
a. seminal vesicles b. prostate gland c. bulbourethral glands d. seminiferous tubules
Binding of ACh with receptor sites on the motor end plate opens chemical messenger-gated cation channels in the motor end plate, bringing about depolarization of the motor end plate
Indicate whether the statement is true or false
The ________ is a U-shaped bone that sits above the larynx yet does not articulate with any other bone
A) maxilla B) hyoid bone C) mandible D) zygomatic bone