Receptors are (a)   distributed throughout the body.

Receptors are considered _______ and are confined to structures in the _______.

(a)  

A stimulus first stimulates sensory receptors. (a)   : stimulus is converted into graded receptor potentials.

(a)   : Receptor potentials trigger action potentials that are then conducted along sensory neurons to CNS.

(a)   occurs in the brain or spinal cord of the CNS.

Sensory receptors are designed to respond to (a)   stimuli.

They allow the body to interpret sensory events by collecting information from the _______ and relaying it to the _______.

(a)  

Sensory receptors can take the form of ends of _______ or _______ near extensions of the neurons.

(a)  

Stimulation of a sensory receptor causes local change in its (a)   potential.

Respond to moderate changes in temperature.

(a)  

Respond to mechanical forces that distort receptor.

(a)  

Respond to light.

(a)  

Occurs when action potentials make the brain aware of a sensory event.

(a)  

Occurs when brain interprets sensory impulses.

(a)  

Process in which cerebral cortex interprets sensation as being derived from certain receptors.

(a)  

Sensory adaptation is the ability to ignore (a)   (or continuous) stimuli.

When sensory adaptation occurs sensory impulses become (a)   and may cease.

Sensory adaptation is best accomplished by (a)   and olfactory receptors.

General Senses are senses with small, widespread (a)   associated with skin, muscles, joints, and viscera.

Special senses are senses that have (a)   within large, complex sensor organs in the head.

General Senses are divided into 3 Groups: (a)  

Senses associated with body surface are called (a)   .

Senses associated with changes in the viscera are called (a)   .

Senses associated with changes in muscles, tendons, and joints, also body position, are called (a)   .

Warm receptors are sensitive to temperatures above __________ and below __________.

(a)  

Cold receptors are sensitive to temperatures between __________ and __________.

(a)  

Pain receptors, or nociceptors, are not found in the (a)   .

Olfactory receptors are (a)   .

Sense of smell provides __________ to __________% of sense of taste.

(a)  

Olfactory receptors cover upper parts of the nasal cavity, superior nasal conchae, and a portion of the nasal (a)   .

Taste receptors are (a)   .

The organs of taste are the (a)   .

Taste buds are found on (a)   of tongue, roof of mouth, linings of mouth.

Activated with temperatures outside range of thermoreceptors. Freezing sensation below ___ and burning sensation above ___.

(a)  

Pain receptors are the only receptors in viscera whose stimulation produces (a)   .

Visceral pain may feel as if it's coming from some other part of the body; this is called (a)   .

This results from (a)   .

Sensation of pain begins in the (a)   .

The intensity and source of the pain is processed in the (a)   .

5 Primary Taste Sensations: 1. ___ 2. ___ 3. ___ 4. ___ 5. ___.

(a)  

3 different cranial nerves carry sensory impulses from taste receptors: 1. ___ 2. ___ 3. ___.

(a)  

Interpretation of taste receptor impulses occurs in the gustatory cortex in the (a)   .

The emotional response of pain involves the (a)   specifically.

The _______ is the organ of _______ and _______.

(a)  

There are 3 sections of the ear: 1. _______/external ear 2. _______ ear 3. _______/internal ear

(a)  

The Auditory (eustachian) Tube - Connects the _______ ear to the _______.

(a)  

The Auditory (eustachian) Tube - Maintains equal _______ _______.

(a)  

Changes in altitude make the (a)   function noticeable.

The Inner Ear - A complex system of (a)   .

Two types of labyrinths: - _______ (bony) labyrinth in the temporal bone and the _______ labyrinth.

(a)  

Three portions of labyrinths: 1. (a)   : hearing

Semicircular (a)   : dynamic equilibrium

(a)   : static equilibrium

Visual receptors are located in the (a)   .

Eyelids (Palpebrae) are composed of 4 layers. The first layer is (a)   : Thinnest in body

The second layer of the eyelid is (a)   : Orbicularis oculi closes eyelid, Levator palpebrae superioris muscle opens it

The third layer of the eyelid is (a)   : Contains tarsal glands, which secrete oil onto eyelashes

Mucous membrane that lines eyelid and covers portion of eyeball.

(a)  

The Lacrimal Gland secretes (a)   .

The Iris is the only portion of the eye that is ______ (produced by melanocytes). It controls the amount of ______ entering the eye.

(a)  

The (a)   is a window in the center of the iris.