Carla 5 part 2

The organ of Corti is located on what membrane?

Basilar membrane

How can epidural administration of opiates block pain?

Binding to opioid receptors in the spinal cord, inhibiting the transmission of pain signals from the first order neuron to the second order neuron

Which of the following mechanisms describe how sound is amplified within the auditory system?

Both ossicles acting as a lever system and the tympanic membrane is larger than the oval window

In comparison to low pitch sound, high pitch sound will cause vibrations of the basilar membrane _____.

Closer to the oval window

The transduction of sound waves into neural impulses occurs in the _____.

Cochlea

Bending of the stereocilia on the hair cell can induce either a closure or an opening of a potassium channel based upon the _____.

Direction that the stereocilia move

How is endolymph different from perilymph?

Endolymph is similar in composition to intercellular fluid

Both the auditory and vestibular systems rely upon _____ to detect movement of fluid within the ear.

Hair cells

The hair cells are embedded within endolymph, thus, when a potassium channel opens, potassium moves ______ the cell, causing it to ______.

Into : depolarize

The anterior portion of the semicircular canal detects acceleration in which direction?

Moving the head up and down as in saying "yes"

Stapes-induced vibration of the ______ induces a wave of vibration through the perilymph that must also vibrate the ____ due to the Incompressibility of perilymph.

Oval window: round window

The posterior portion of the semicircular canal detects acceleration in which direction?

Rotation of the head from side to side, as in moving the ear toward the shoulder

The ______, located at the end of hair cells, are attached to the _____, which causes them to bend when sound waves enter the cochlea.

Stereocilia: tectorial membrane

The intensity of sound is coded for by _______.

The frequency of action potentials

Which of the following statements about sensory coding is FALSE?

The intensity of stimulus is coded for by the size of the action potential

Frequency of sound is coded for by _____.

The location of the hair cell stimulated

The visual system is an excellent example of parallel processing, where visual details are ____.

Transmitted along separate pathways to the primary visual cortex where they are integrated

Sound waves traveling through the air initiate a vibration of the ______. The sound waves are then transmitted along the ____ to the cochlea.

Tympanic membrane: ossicles