Exam 12: Sensory Mechanisms

Foods that are potentially poisonous or inedible can often be detected by the ________ taste receptors, which are located at the very back of the tongue.

The vestibular apparatus located in the middle ear is a system of fluid-filled chambers that is essential to the sense of hearing.

LASIK surgery involves removing the cornea and reshaping the lens to correct for vision problems such as nearsightedness, farsightedness, and astigmatism.

A stronger stimulus results in which one of the following?

Which of the following receive(s) a physical or chemical stimulus and ultimately cause(s) nerve impulses to be generated in sensory neurons?

Dim light causes the pigment ________ in rods to change shape, which causes sodium channels on the photoreceptor cell to close and activate ganglion cells.

The structure shown in the figure above is found in which one of the following?

Match the following types of receptors to their definitions. -respond to tissue damage

Which one of the following occurs when bright light hits the eye?

Match each of the following disorders associated with sensory mechanisms with its description. -condition resulting from irregularities in the shape of the lens or cornea; symptoms include blurred vision

Somatic sensations include temperature, touch, vibration, pressure, and pain; these sensations originate from receptors found in specific, localized areas of the body.

Using the figure above, identify the structures of the eye. -Label Y represents the ________.

Both eyes have an optic disk. When an image is focused on the optic disk, it cannot be "seen."

Stronger stimuli activate more receptors and trigger bigger action potentials in sensory neurons.

Match the following types of receptors to their definitions. -detect light touch of skin

Pain, especially intense sensations, is unpleasant and sometimes difficult for a person to cope with. Nevertheless, pain detection is essential for human survival. Explain how pain detection is necessary for a person's survival.

Which one of the following parts of the eye is affected by cataracts?

Which one of the following structures is used to sense rotational movement of the head and body?

During eye examinations, a test is done to monitor the pressure within the eye. This test is done to detect

Match each of the following disorders associated with sensory mechanisms with its description. -condition that generally occurs after age 40 as the lens stiffens; results in the inability to focus on objects that are nearby