What six basic steps are involved in the process of hearing?
What will be an ideal response?
(1 ) Sound waves arrive at the tympanic membrane.
(2 ) Movement of the tympanic membrane causes displacement of the auditory ossicles.
(3 ) Movement of the stapes at the oval window establishes pressure waves in the perilymph of the vestibular duct.
(4 ) The pressure waves distort the basilar membrane on their way to the round window of the tympanic duct.
(5 ) Vibration of the basilar membrane causes vibration of hair cells and bending of stereocilia against the tectorial membrane.
(6 ) Information about the region and intensity of stimulation is relayed to the brain stem over the cochlear branch of N VIII.
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Which of the following is not attached to the vertebral arch?
A. transverse processes B. spinous process C. superior articulating process D. inferior articulating process E. They are all attached to the vertebral arch.
The types of neurons that are organized into neuronal pools are
A. intraneurons. B. astrocytes. C. Schwann cells. D. interneurons.
The familiar brown color of human feces comes primarily from the orange-colored product of red blood cell breakdown that has been secreted in the bile and has become brown as it travels through the intestines. Which product contributes to this color?
A. Biliverdin B. Degraded platelets C. Ferritin D. Bilirubin
Atrial repolarization occurs during this period of time, seen on an EKG.
A. P wave B. QRS complex C. T wave D. S-T segment