Exam 13: The Peripheral Nervous System and Reflex Activity

After axonal injury, regeneration in peripheral nerves is guided by ________.

Reciprocal inhibition means that while one sensory nerve is stimulated, another sensory neuron for synergistic muscles in the same area is inhibited and cannot respond.

Figure 13.1 Using Figure 13.1, match the following: -Damage to this nerve would cause dizziness, nausea, and loss of balance.

Match the following: A) Conduction deafness B) Sensorineural deafness C) Tinnitus -Loss of hearing resulting from prolonged exposure to high-intensity sounds.

Match the following: A) Conduction deafness B) Sensorineural deafness C) Tinnitus -Can result from impacted cerumen.

There are three layers of neurons in the retina. The axons of which of these neuron layers form the optic nerves?

Match the following: A) Precommand level B) Segmental level C) Projection level -Controls the outputs of the cortex and regulates motor activity.

Match the following: A) Vestibule B) Tympanic membrane C) Cochlear duct D) Spiral organ (of Corti) -Houses the spiral organ (of Corti.)

Match the following: A) Night blindness B) Otitis media C) Glaucoma D) Conduction deafness -An inflammation of the lining of the middle ear.

Distinguish between monosynaptic and polysynaptic reflexes and between ipsilateral and contralateral reflex responses.

Explain why your nose runs during and immediately after a good cry.

Figure 13.2 Using Figure 13.2, identify the following components of the reflex arc: -Effector.

Match the following: A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane -Connects the middle ear with the nasopharynx.

A fall or an improperly delivered gluteal injection could result in ________.

Match the following: A) Precommand level B) Segmental level C) Projection level -The neural machinery of the spinal cord, including spinal cord circuits.

Taste sensation also involves chemoreceptors, thermoreceptors, mechanoreceptors, and ________.

The facial nerve is cranial nerve number ________.

The obturator nerve branches from the sacral plexus.

In the optic ________ the visual fields of the axons are all ipsilateral.

Figure 13.1 Using Figure 13.1, match the following: -Innervates the superior oblique muscle.