Exam 15: The Special Senses

After head trauma from an automobile accident, a man has anosmia. Define anosmia. Why is this condition fairly common after such injuries and in cases of severe nasal cavity inflammation?

The first vestiges of eyes in the embryo are called .

Motion sickness seems to _.

Vitamin A needed by the photoreceptor cells is stored by the cells of the retina pigmented layer.

As light travels through the eye, it passes through several structures or chambers before reaching the retina. Which list below gives those structures in the correct order?

Dark adaptation _.

The bending of light rays is called reflection.

Trace the pathway of sound as it enters the external ear until it is perceived in the brain.

The oval window is connected directly to which passageway?

Ordinarily, it is NOT possible to transplant tissues from one person to another, yet corneas can be transplanted without tissue rejection. This is because the cornea .

Light passes through the entire thickness of the neural layer of the retina to excite the photoreceptors.

Which movement of ions produces EPSPs in cochlea hair cells?

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

Odorants must be volatile to be smelled.

Explain why prolonged periods of reading tire the eye muscles and result in eye strain.

Labyrinthitis is a medical condition often caused by a viral infection, resulting in swelling and inflammation of the membranous labyrinth. Which of the following symptoms would you most associate with the condition of labyrinthitis?

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

Which of the following types of neurons are replaced throughout adult life?