Exam 35: Special Senses

Rapid, irregular eye movements that may be horizontal, vertical, or rotary, depending on the underlying cause, are symptoms of ________.

The inner ear is a very complex system of communicating chambers and tubes known as the ________.

Six ____ function together to move the eyeball.

The eye sockets, or ________, form a protective shell around the eyes.

The ducts that are located on the medial aspect of each eyeball and drain tears into the nose are the _______ ducts.

When the head moves, fluids known as ________ and endolymph in the semicircular canals and vestibule move, activating equilibrium receptors and hearing receptors.

The process called ________ enables the eye to focus on images of objects that are near or far away.

As the iris contracts and relaxes, an opening at its center, the ____, grows larger or smaller.

The _______ glands are located on the lateral edge of each eyeball and produce tears.

Paul Veras is a 24-year-old patient whose physician referred him to the ear specialist for whom you work because he has noticed a gradual loss of hearing in his left ear. The physician runs tests and finds the hearing in Paul's right ear is normal. Further tests reveal that Paul has an acoustic neuroma in the left ear. Paul is distressed at this news. "I am a musician," he says. "I need both of my ears! Would a hearing aid help?" Which of the following responses would you expect the physician to give?

Infants should be startled by loud noises and recognize their mother's voice better than others at

Gustatory information gathered by taste buds is sent to and interpreted by the ____.

The area shown at letter A in the figure is the ________, or blind spot, which contains no sensory receptors.

When spicy foods are eaten, which receptors on the tongue are activated?

The three tiny bones called ear ossicles are the malleus, incus, and ________.

Hearing loss is ____.

Parts of the optic nerve fuse together and cross at an x-shaped structure called the ________, located at the base of the brain.

A chemical can stimulate smell receptors for only a limited amount of time because of a process called sensory ________.

The ________ in the eye converts light into nerve impulses, which are then transmitted along the optic nerve to the brain.

The ____ are mucous membranes that line the inner surfaces of the eyelids.