A & P: Chapter 9 Test ; The Senses

The type of sensory receptors that respond to physical forces such as bending or stretching the receptor are called

• chemoreceptors.

• thermoreceptors.

• mechanoreceptors.

• photoreceptors.

• nociceptors.

Pain felt in the left shoulder and arm as the result of a heart attack is an example of

• referred pain.

• phantom pain.

• localized pain.

• anesthesia.

• both referred pain and phantom pain.

Pain impulses can be suppressed by

• anesthetics.

• inhibition of consciousness in the reticular formation.

• inhibitory impulses carried by neurons of the dorsal columns. (ex. Rubbing injury)

• exercise.

• all of these.

Which of the following is NOT one of the five primary taste sensations?

• bitter

• salty

• sour

• spicy

• sweet

A thin, transparent mucous membrane that covers the inner surface of the eyelids, and the anterior surface of the eye is the

• lacrimal gland.

• conjunctiva.

• lacrimal canaliculus.

• nasolacrimal duct.

• eyelashes.

The firm, opaque, white, outer connective tissue layer of the posterior five sixths of the eye is the

• sclera.

• cornea.

• vascular tunic.

• choroid.

• nervous tunic.

The choroid coat of the eye

• is part of the fibrous tunic.

• appears white in color.

• anteriorly, is continuous with the sclera.

• consists of a vascular network and large numbers of melanin-containing cells.

• is part of the nervous tunic.

The iris

• surrounds an opening called the pupil.

• is the colored portion of the eye.

• controls the diameter of the pupil.

• is stimulated to contract by parasympathetic stimulation.

• has all of these properties.

The spot where a number of blood vessels enter the eye, and where the optic nerve exits the eye, is called

• the macula lutea.

• the fovea centralis.

• the blind spot.

• the optic disk.

• Both the blind spot and the optic disk are correct names.

Cones are

• more sensitive to light than rods are.

• are color sensitive to red, blue or green.

• are found in the sclera

• are not found in the eye

• all of the above.