The two bones of the lower leg are the:
a. tibia and fibula
b. femur and humerus
c. ulna and radius
d. none of the above
a. tibia and fibula
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The onset of puberty is triggered by an increase in
A. sensitivity of the hypothalamus to negative feedback by sex steroids. B. sensitivity of the pituitary to negative feedback by sex steroids. C. sensitivity of the gonads to pituitary gonadotropins. D. GnRH secretion. E. sensitivity of the pituitary to GnRH.
Splanchnic nerves
A) originate from first-order neurons located in the upper five thoracic segments of the spinal cord. B) innervate the viscera or internal organs. C) control sympathetic function of structures in the thorax. D) connect chain ganglia. E) are formed of parasympathetic fibers.
Lymphoid nodules in the walls of the small intestine are called (the)
A) nodes. B) germinal centers. C) thymic corpuscles. D) Peyer's patches. E) None of the answers are correct.
Which of the following bones is not part of the appendicular skeleton?
A) scapula B) tibia C) sacrum D) clavicle E) metacarpals