The two mechanisms used to prevent food from entering the larynx are
contraction of the thyroid cartilage, pinching closed the larynx.
movement of the tongue over the inlet to the larynx.
closure of the glottis.
tipping of epiglottis over glottis.
_____
contraction of the thyroid cartilage, pinching closed the larynx.
_____
movement of the tongue over the inlet to the larynx.
__X__
closure of the glottis.
__X__
tipping of epiglottis over glottis.
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Visceral motor neuron nuclei are located in which part of the brain?
A) midbrain B) primary motor cortex C) hypothalamus D) thalamus E) cerebellum
the anatomical term that describes a person lying face up is ____________.
Fill in the blank(s) with the appropriate word(s).
Describe the gross anatomy of the thymus
A) The thymus is a deep red, elongated organ covered by a capsule. It is soft and contains indentations for the organs surrounding it. B) The thymus is a bean-shaped organ covered by a capsule with multiple afferent vessels and a single efferent vessel delivering lymph to it. C) The thymus is an aggregate of lymphoid tissue without a capsule embedded in the epithelial lining of various organs. D) The thymus is the largest visceral organ. It is a firm and reddish brown organ containing 4 lobes. E) The thymus is a pink, grainy organ covered by a capsule that divides it into two lobes, which divide further into lobules.
A human embryo develops with a mutation that prevents smooth muscle from developing in the body. Which bodily functions will be most heavily affected by this mutation if it survives to birth?
A. Digestive system functions B. Muscular movement C. Bone functions D. Heart functions