13 - The Peripheral Nervous System And Reflex Activity I

Front 1

The three ways sensory receptors are classified.

Back 1

______ are classified by stimulus type, location, and structure complexity.

Front 2

The types of sensory receptors classified by stimulus.

Back 2

1. Mechanoreceptors
2. Thermoreceptors
3. Photoreceptors
4. Chemoreceptors
5. Norireceptors

Front 3

The types of sensory receptors based on location.

Back 3

1. Exteroceptors (outside stimuli)
2. Interoceptors (internal stimuli)
3. Proprioceptors (restricted internal stimuli)

Front 4

Sensory receptors that respond to pain.

Back 4

Nociceptors.

Front 5

Sensory receptors that respond to temperature changes.

Back 5

Thermoreceptors.

Front 6

Sensory receptors that respond to light energy.

Back 6

Photoreceptors.

Front 7

Sensory receptors that generate nerve impulses when tissue is deformed by mechanical force.

Back 7

Mechanoreceptors.

Front 8

Sensory receptors that respond to chemicals in soltuions.

Back 8

Chemoreceptors.

Front 9

The accessory structures of the eye.

Back 9

1. Eyebrow
2. Eyelid
3. Conjunctiva
4. Lacrimal apparatus
5. Extrinsic eye muscles

Front 10

These glands and their ducts open at the edge of the lid and help lubricate the eye.

Back 10

Tarsal glands.

Front 11

Modified sweat glands found between the eyelash hair follicles.

Back 11

Ciliary glands.

Front 12

These produce tears, which lubricate the eye and contain mucus, antibodies, and lysozyme.

Back 12

Lacrimal glands.

Front 13

An enzyme found in tears that destroys bacteria.

Back 13

Lysozyme.

Front 14

Conjunctivitis

Back 14

Inflammation of the conjunctiva.

Front 15

Pink eye.

Back 15

Inflammation of the conjunctiva caused by a virus or bacteria.

Front 16

Diplopia.

Back 16

Double vision. Happens when movement of the muscles controlling the eyes are not coordinated.

Front 17

Strabismus.

Back 17

A congenital weakness of the external eye muscles.

Front 18

Treatment of strabismus.

Back 18

Eye muscle strengthening exercises, eye patch over the stonger eye, surgery.

Front 19

Photoreceptors of the eye.

Back 19

Rods and Cones.

Front 20

The more numerous photoreceptors of dim-light and peripheral vision.

Back 20

Rods.

Front 21

High-light and high acuity color vision is attained by these photoreceptors.

Back 21

Cones.

Front 22

Nyctalopia.

Back 22

Nightblindness. A condition where rod function is impaired, causing problems seeing in low light levels.

Front 23

Cause of Nyctalopia.

Back 23

This is the result of rod degeneration from the disease, retinitis pegmentosa, or vitamin A deficiencies.

Front 24

Loss of an eye or loss an an optic nerve function causes _________.

Back 24

Loss of ______ causes impaired depth perception.

Front 25

Astigmatism.

Back 25

A refractory problem that is curred by glasses, corneal implants, or laser surgery.

Front 26

Hyperopia.

Back 26

farsightedness. A person can see object far, but not close up. This is a result of an eyeball being too short. Glasses needed.

Front 27

Myopia.

Back 27

Nearsightedness. A person can see objects close but cannot focus on distant object. This is a result of an eyeball being too long. Glasses or laser surgery is needed.

Front 28

Cateract.

Back 28

A clouding of the lens that causes a person to see through "frosted glass." Surgery to remove the lens and replace it with an artificial one is standard treatment.

Front 29

Cause of a cateract.

Back 29

This is caused by heavy smoking, age, genetics, diabetes, and exposure to high intensity sunlight.

Front 30

Glaucoma.

Back 30

This is the result of increased intraocular pressure due to inhibited or slowed drainage. Untreated, this causes blindness. The treatment includes medicated eyedrops and laser surgery.

Front 31

Retinal Detachment.

Back 31

This occurs due to injury where the pigmented and neural layers seperate. If caught early enough, laser surgery can reattach the layers preventing blindness.