Answer the following questions true (T) or false (F)
1. Salivation is primarily controlled by nerves of the parasympathetic nervous system which release acetylcholine onto the acinar cells of the salivary glands.
2. Of the three regions of the pharynx, only the nasopharynx and laryngopharynx are part of the alimentary canal.
3. The stomach differs anatomically from other organs of the alimentary canal because it has an additional oblique layer of muscularis externa for churning.
1. TRUE
2. FALSE
3. TRUE
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How do sex hormones affect bone growth?
A) Testosterone stimulates osteoclast activity. B) They cause ossification to be faster than cartilage replacement. C) They stimulate the cleavage of hydroxyapetite. D) They cause osteoporosis. E) Estrogen causes slower epiphyseal closure.
A natural or an artificial wading area that is used to cool swine is known as what?
A) wallow B) snare C) pile D) tusk
The ____________________hormones are derived from tyrosine
Fill in the blank(s) with correct word
Which of the following is not true of a thoracic vertebra?
A. The spinous process is pointed and angled sharply downward. B. The body has facets as points of articulation for ribs. C. It has a pair of transverse foramina. D. The body is more massive than those of cervical vertebrae but less than those of lumbar vertebrae. E. It usually has a facet at the end of each transverse process for attachment of a rib.