The ________ is an important ridge of muscle extending horizontally around the right ventricle from the interventricular septum to the base of the anterior papillary muscle containing part of the conducting system
A) auricle
B) pectinate muscle
C) trabeculae carneae
D) moderator band
E) conus arteriosus
D
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Normal growth is dependent on all of the following hormones except
A) thyroid hormones. B) oxytocin. C) growth hormone. D) insulin. E) glucocorticoids.
Answer the following statements true (T) or false (F)
1. The tympanic membrane is at the end of the auditory canal. 2. The ceruminous glands produce ear wax. 3. The ossicles are in the middle ear. 4. The handle of the incus attaches to the inside of the eardrum. 5. The stapes presses against the oval window.
Muscles will hypertrophy if they are not used continually
Indicate whether the statement is true or false
Which of the following statements regarding the vestibular system is TRUE?
A. Hair cells in the cochlea are involved in the detection of movement and position of the head. B. The utricle and saccule are mainly responsible for detecting angular rotation of the head. C. The vestibular apparatus is principally involved in our ability to detect and interpret sound. D. Deflection of the basilar membrane by fluid moving within the semicircular canals allows us to detect rotational movement of the head. E. Receptors in the utricle and saccule detect changes in the position of the head with respect to gravity.