The midbrain, thalamus, and pons are all considered part of the brainstem.
Answer the following statement true (T) or false (F)
False
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The laryngeal cartilage associated with the bifurcation of the pharynx into the trachea and esophagus is known as the cricoid.
Answer the following statement true (T) or false (F)
Thick projections of muscle in the ventricles that anchor chordae tendineae are called
A) pectinate muscles. B) conus arteriosus. C) papillary muscles. D) trabeculae carneae. E) auricles.
As a result of the tympanic reflex,
A) vibrations are transmitted less effectively to the inner ear. B) vibrations are transmitted more effectively to the inner ear. C) the malleus is pulled toward the eardrum. D) the bridge of auditory ossicles becomes less rigid.
Select the incorrect statement about cardiac muscle cells
a. all of them contract in the heart or none of them contract. b. they are capable of graded strength of contraction. c. they are produced constantly after infancy. d. they have an abundance of mitochondria. e. they have an abundance of myoglobin.