Exam 13: The Peripheral Nervous System and Reflex Activity

Match the following: A) Conduction deafness B) Sensorineural deafness C) Tinnitus -A possible side effect of medications such as aspirin.

Match the following reflexes to their function: A) Tendon B) Flexor C) Plantar D) Stretch E) Crossed-extensor -Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument.

Which of the following is True about gustatory receptors?

A 60-year-old woman is experiencing vertigo. She ignores the symptoms initially, but now her attacks are accompanied by severe nausea and vomiting. Following an attack, she hears a roaring in her ears that causes temporary deafness for some time after. What do you think her problem is, and what is its suspected cause?

In the somatosensory system there are no third-order neurons in the cerebellum.

Figure 13.3 Using Figure 13.3, match the following: -Ganglion cells.

Match the following: A) Night blindness B) Otitis media C) Glaucoma D) Conduction deafness -A condition that can result from a deficiency of vitamin A.

Match the following reflexes to their function: A) Tendon B) Flexor C) Plantar D) Stretch E) Crossed-extensor -Consists of an ipsilateral withdrawal reflex and a contralateral extensor reflex; important in maintaining balance.

Figure 13.1 Using Figure 13.1, match the following: -Damage to this nerve would cause difficulty in speech and swallowing, but no effect on visceral organs.

The structure that allows equalization of the pressure in the middle ear with that outside the body is the external auditory meatus.

Nerves that carry impulses toward the CNS only are ________.

What structure regulates the amount of light passing to the visual receptors of the eye?

Match the following: A) Otoliths B) Vestibule C) Pharyngotympanic tube D) Tympanic membrane -Detects linear acceleration.

Contrast light and dark adaptation and include the role of the rods and cones.

When we hear a strange sound in a room, which aspect of sensory perception is activated?

Figure 13.4 Using Figure 13.4, match the following: -Controls lens shape.

Starting at the spinal cord, the subdivisions of the brachial plexus are (in order):

Match the following: A) Abducens B) Olfactory C) Vestibulocochlear D) Vagus E) Accessory -Turns the eyeball laterally.

Match the following: A) Macula B) Crista ampullaris C) Taste buds -Chemically sensitive cilia are found in this structure.

Ralph sustained a leg injury in a bowling accident and had to use crutches. Unfortunately, he never took the time to learn how to use them properly. After two weeks of use, he noticed his fingers were becoming numb. Then he noticed his arms were getting weaker and tingling. What could be his problem?