The Special Senses

These flashcards cover key concepts related to the special senses, including classification, structures, functions, and neurological pathways.

The two major classes of sensory receptors are __________ and __________ receptors.

General sensory receptors and special sensory receptors.

General sensory receptors provide information about conditions __________ the body, while special sensory receptors provide information about conditions __________ the body.

Inside; outside.

Olfactory receptors are __________ that detect odor molecules.

Chemoreceptors.

The gustatory epithelium is located on the __________ and contains taste buds.

Tongue.

The function of olfactory cilia is to __________.

Detect chemicals/odorants in the air.

The olfactory nerve is also known as __________.

Cranial nerve I.

The sense of __________ involves receptors that are located in complex sensory organs such as the eyes and ears.

Vision.

The five classes of taste sensations include sour, salty, bitter, sweet, and __________.

Umami.

The eye's lens provides __________ for near and far vision.

Accommodation.

The __________ is the part of the eye that has no photoreceptors and is referred to as the blind spot.

Optic disc.

The cochlea is responsible for __________.

Hearing.

The __________ is a thin, transparent mucous membrane covering parts of the eye.

Conjunctiva.

Cataracts result from __________ of the lens.

Clouding.

The __________ contains sensory receptors sensitive to gravity and acceleration.

Vestibule.

The three parts of the ear are the __________, __________, and __________.

Outer ear; middle ear; inner ear.

The stapes is attached to the __________, which leads to the inner ear.

Oval window.

The structure in the cochlea that contains sensory receptors is called the __________.

Spiral organ or organ of Corti.

The __________ of the eye regulates the amount of light that enters through the pupil.

Iris.

Auditory nerve is also known as __________.

Cranial nerve VIII.

The __________ is an opening in the center of the iris that lets light enter the eye.

Pupil.

The __________ humor is found in the posterior cavity of the eye.

Vitreous.