BIO 173 Chapter 12 Sensory Mechanisms

In what order do the structures of the ear come into play when hearing?

Auditory canal-tympanic membrane-malleus-cochlea-cochlear nerve

Which of the following is/are involved in focusing light?

Both (a) lens and (c) cornea

Which of the following can be corrected with corrective lenses?

Both (a) myopia and (c) hyperopia

A more powerful stimulus will:

Both (b) result in activation of more receptors and (c) result in more frequent action potentials

Which of the following are NOT found among the somatosensory receptors?

Chemoreceptors

Which of the following correctly describes the distribution of rods and cones in the retina?

Cones are more highly concentrated in the fovea centralis.

Which of the following correctly traces the path of light through the eye?

Cornea-aqueous humor-pupil-lens-vitreous-humor-retina

Which of the following statements explains why vision is less sharp in dim light than in bright light?

Many rods converge on a single ganglion.

Which of the following would most readily be treated with antibiotics?

Otitis media

Different pitched sounds will result in stimulation of receptors located in different regions of:

The cochlea

Which of the following will regulate the amount of light entering the eye?

The iris

When we adjust our head and eye position to carefully look at something we are directing the image to focus on:

The macula

Conduction deafness would most likely be caused by damaged to:

The malleus, incus, and/or stapes

What do the receptors in the skin for light touch and the receptors in the nose for smell have in common?

They both adapt very quickly.