Term
| Tactile receptors, temperature receptors, pain sensors and proprioceptors are: |
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Definition
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Term
| The eyes, ears and nose are: |
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Definition
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Term
Tactile Receptors bring you information about:___
and are mostly located:___ |
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Definition
-pressure, touch and vibration
-throughout the skin |
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Term
| Temperature sensors are concentrated in what area? |
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Definition
| The lips, mouth and anus. |
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Term
Pain receptors are located:
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Definition
| Throughout the skin and certain internal organs (not all organs have an adequate number of pain receptors and can make it difficult to determine the actual location of the pain.) |
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Term
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Definition
| Chemicals released by the central nervous system |
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Term
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Definition
| to sense the position of various body parts without looking. Enable you to sense body parts moving and in what direction. |
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Term
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Definition
| within the muscles, joints and tendons. |
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Term
| Propioception or Kinesthesia |
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Definition
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Term
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Definition
| touch, vision, hearing, smell and taste. |
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Term
| Trochlear, oculomotor and abducens |
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Definition
| are the three cranial nerves the muscles attached to the eye |
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Term
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Definition
| sends visual data back to the occipital lobe of the brain. |
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Term
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Definition
| the lacrimal glands continuously. |
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Term
| The tarsal (or meibomian) glands secrete |
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Definition
| an oily substance to lubricate the eyelid and prevent tears from overflowing. |
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Term
| A clear membrane that covers the outside of the front of the eyeball and the inside surface of the eyelids. |
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Definition
| Conjunctiva (it is not a part of the eyeball itself.) |
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Term
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Definition
| the outermost layer of the eyeball (white of the eye) that protects the eye and serves as the surface to which extrinsic muscles attach. |
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Term
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Definition
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Term
| The clear area of the sclera |
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Definition
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Term
| The cornea has these two receptors |
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Definition
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Term
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Definition
| middle layer of the eyeball. |
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Term
| The pupil is a small circular opening in the front of the |
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Definition
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Term
| The pupil is surrounded by |
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Definition
| the iris which contains intrinsic muscles that adjust the size of the pupil |
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Term
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Definition
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Term
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Definition
| Durable crystalline disc behind the iris and pupil that focuses light on the retina |
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Term
| The lens of the eye's structure is |
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Definition
| biconvex - both sides are convex |
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Term
| The anterior chamber of the eye(the space between the lens and the structures in front) is filled with |
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Definition
| aqueous humor (watery fluid) |
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Term
| The posterior cavity of the eyeball is located: ______ and is filled with: _______ |
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Definition
- behind the lens
- vitreous humor - transparent gelatin-like substance |
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Term
| The posterior cavity of the eyeball is responsible for __________ and aids in ________ |
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Definition
-maintaining the spherical shape of the eye
- focusing light onto the retina |
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Term
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Definition
| Innermost layer of the eyeball that detects light and transmits signals back to the brain |
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Term
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Definition
| Sensitive to dim light and are used for peripheral vision. |
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Term
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Definition
| Sensitive to bright light and color. |
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Term
| There are _____ kinds of cone cells - each one sensitive to a different _______ |
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Definition
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Term
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Definition
| yellow disc on the retina |
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Term
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Definition
| located in the macula lutea (yellow disc on the retina) and is where the cone cells are located |
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Term
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Definition
| in the extrafoveal (or peripheral) region, the area around the fovea centralis |
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Term
| The optic disc contains no rod or cone cells making it a ___________ |
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Definition
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