Chapter 16: Sense Organs Flashcards

What type of receptor detects light touch?

• Tactile (Meissner) corpuscle

• Pacinian corpuscle

• Ruffini ending

• Merkel disc

Where is the organ of Corti located?

• In the cochlea (inner ear)

• In the semicircular canals

• In the tympanic membrane

• In the auditory nerve

Which part of the eye bends light the most?

• The cornea

• The lens

• The retina

• The iris

What is the function of the macula lutea?

• It contains the fovea centralis, the area of sharpest vision.

• It produces aqueous humor for the eye.

• It controls the movement of the eyelids.

• It is responsible for color perception in the iris.

Where are olfactory receptors located?

• Superior nasal concha

• Inferior nasal concha

• Middle nasal concha

• Nasal septum

Which structure detects deep pressure and vibration?

• Pacinian (lamellar) corpuscle

• Meissner's corpuscle

• Merkel's disc

• Ruffini ending

What do the semicircular canals detect?

• Rotational (angular) acceleration of the head

• Linear acceleration of the body

• Sound vibrations

• Changes in blood pressure

What adjusts the shape of the lens for focusing?

• Ciliary body

• Retina

• Cornea

• Optic nerve

Which cranial nerve carries auditory signals to the brain?

• Vestibulocochlear nerve (CN VIII)

• Olfactory nerve (CN I)

• Optic nerve (CN II)

• Trigeminal nerve (CN V)

What creates the blind spot in the retina?

• The optic disc (no photoreceptors)

• The fovea centralis

• The lens

• The cornea