Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

The Sensory Sys

Things to know about Ch 11 The Sensory System

What is a sensory receptor? Part of the nervous system that detects a stimulus.
What are some categories of sensory receptors based on the type of stimulus? There are chemo-receptors that respond to chemicals in solution; photo-receptors that respond to light. Thermo-receptors that respond to temperature; and mechano-receptors that respond to movement.
How do the special and general senses differ in location? The special senses are in specialized sense organs; the general senses are widely distributed.
What happens when a sensory receptor adapts to a stimulus? It fails to respond.
What are five structures that protect the eye? The skull bones, eyelids, eyelashes, eyebrows, lacrimal gland, and conjunctiva.
What is the function of the extrinsic eye muscles? They pull on the eyeball so that both eyes center on one visual field, a process known as convergence.
Which cranial nerve carries impulses from the retina to the brain? Optic
What are the three tunics of the eyeball? The fibrous tunic is the outermost; the vascular tunic is the middle tunic; the nervous tunic is the innermost tunic.
What are the structures that refract light as it passes through the eye? The cornea, aqueous humor, lens, and vitreous body.
What is the function of the ciliary muscle? It contracts and relaxes to regulate the thickness of the lens and allow accommodation for near and far vision.
What is the function of the iris? Adjusts the size of the pupil to regulate the amount of light that enters the eye.
What are the receptor cells of the retina? The rods and cones.
What are four errors of refraction? Hyperopia, myopia, astigmatism, and presbyopia.
What is cloudiness of the lens called? Cataract
What disorder is caused by excess fluid pressure in the eye? Glaucoma
What are the three divisions of the ear? Outer, middle and inner.
What are the names of the ear ossicles, and what do they do? Malleus, incus, and stapes.
What are the two fluids found in the inner ear, and where are they located? The endolymph, found in the membranous labyrinth; The perilymph , found around the membranous labyrinth in the bony labyrinth.
What is the name of the hearing organ, and where is it located? The spinal organ (organ of Corti) located in the cochlear duct within the cochlea.
Where are the receptors for equilibrium located? Located in the vestibule and semicircular canals of the inner ear.
What are the two types of hearing loss? Conductive hearing loss and sensorineural hearing loss.
What is the term for an abnormal sensation of spinning? Vertigo
What are the special senses that respond to chemical stimuli? Taste and smell.
What are five examples of general senses? Touch, pressure, temperature, position (proprioception) and pain.
What are proprioceptors and where are they located? Receptors that respond to change in position. They are located in muscles, tendons, and joints.
The part of the nervous system that detects a stimulus is a Receptor
The bending of light rays as they pass from one substance to another is called Refraction
Nerve impulses are carried from the ear to the brain by the Vestibulococlear (auditory) nerve
A receptor that senses body position is Proprioceptor
A receptor's loss of sensitivity to a continuous stimulus is called Sensory adaptation
From superficial to deep, what is the order of the eyeball's tunics? Fibrous, vascular, nervous
Which eye structure has the greatest effect on light refraction? Cornea
What do receptors in the vestibule sense? Acceleration
Created by: Jessica Venyke



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards