General and Special Senses

Pain receptors

• are stimulated by things that cause tissue damage.

• reduce in sensitivity in the presence of a constant stimulus.

• increase in sensitivity in the presence of a constant stimulus.

• are widely distributed in all tissues.

Sensory receptors that respond to changes in blood pressure are called

• proprioceptors

• chemoreceptors

• nociceptors

• baroreceptors

Sound waves are converted into mechanical movements by the

• tympanic membrane.

• oval window.

• round window.

• cochlea.

The image of an object reaching the retina is a miniture image of the original, but it is

• upside down and backwards.

• right side up and backwards.

• upside down and forwards.

• right side up and forwards.

Which of the following extrinsic eye muscles is responsible for enabling the eye to look upward?

• medial rectus

• inferior oblique

• inferior rectus

• superior rectus

When viewing an object close to you, your lens should be more

• flattened

• rounded

• medial

• lateral

The vitreous body

• is located between the lens and the iris.

• contains the lens.

• helps to stabilize the eye and give physical support to the retina.

• contains blood vessels that nourish the retina.

The hearing receptors are located in the

• ampulla.

• organ of Corti.

• semicircular canals.

• utricle.

The transparent portion of the eye is the

• pupil

• cornea

• conjunctiva

• iris

The structure that overlies the organ of Corti is the

• tectorial membrane.

• endolymph.

• malleus.

• vestibular duct.