Peripheral Nervous System (PNS)

sensation

Term for awareness of stimulus

perception

Term for interpretation of stimulus

1. stimulus types

2. location

3. receptor structure

Sensory receptors are classified by what three things?

mechanoreceptors

sensory receptors respond to mechanical stimuli

thermoreceptors

sensory receptors respond to temperature

proprioceptors

sensory receptors respond to stretch in muscles

photoreceptors

sensory receptors respond to light

electroreceptors

sensory receptors respond to electrical stimuli

chemorecceptors

sensory receptors respond to chemicals

nocireceptors

sensory receptors respond to extreme stimuli

externoreceptors

sensory receptors respond to stimuli outside the body

enteroreceptors

sensory receptors respond to stimuli inside the body

non-encapsulated receptors

sensory receptors found in epithelial & C.T.

encapsulated receptors

sensory receptors that are enclosed in a C.T. capsule

dermis & muscle

Encapsulated receptors are found in the ______ & _______

1. receptor level

2. circuit level

3. perceptual level

List the 3 main levels of receptors

A) endoneurium

B) perineurium

C) fascicle

D) epineurium

Label A-D

1. Olfactory (sensory)

2. Optic (sensory)

3. Oculomotor (motor)

4. Trochlear (motor)

5. Trigeminal (both)

6. Abducens (motor)

7. Facial (both)

8. Vestibulocochlear (sensory)

9. Glossopharyngeal (both)

10. Vagus (both)

11. Accesory (motor)

12. Hypoglossal (motor)

List the 12 cranial nerves in order & what information they process

dermatome

Term for area of skin innervated by a single spinal nerve

Hilton’s law

term for any nerve that supplies a muscle that produces movement at a joint ALSO innervates the joint & skin over the joint