Term
Dermatomes
Trigeminal Nerve
What numbers? What areas of body do they connect to? |
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Definition
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Term
Dermatomes
Cervical Plexus Nerves
What numbers? What areas of body do they connect to? |
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Definition
C1-C4
Head, neck, shoulder, upper chest, lateral arm and forearm and hand |
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Term
Dermatomes
Brachial plexus
What numbers? What areas of body do they connect to? |
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Definition
C5-T1
Arm, forearm and hand |
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Term
Dermatomes
Thoracic plexus Nerves
What numbers? What areas of body do they connect to? |
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Definition
T1-T12
Medial arms forearms and torso |
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Term
Dermatomes
Lumbar plexus Nerves
What numbers? Where are they? |
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Definition
L1-L4
Upper low back, hips and anterior thigh |
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Term
Dermatomes
Sacral plexus Nerves
What numbers? What areas of body do they connect to? |
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Definition
L4-S4
Medial glutes, posterior thigh, and entire lower leg and foot |
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Term
Dermatomes
Ear Nerve
What cranial and spinal nerve numbers? |
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Definition
| Spinal nerves C2 & C3 and Cranial V, VII & X |
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Term
Sensory Receptors
Proprioceptors - where are they found and what do they do? |
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Definition
| deeper tissues like fascia, muscles, joint capsules, tendons and ligaments. Communicate broad range of input re: position in space and various loads in the musculoskeletal system. |
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Term
Sensory Receptors
Pacinian Corpusles - what do they do? |
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Definition
| Respond to vibration, brief pressure and distortion |
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Term
Sensory Receptors
Muscle Spindles - What do they do? |
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Definition
| Monitor Length and change in length of muscles. tell them to contract in response to new load placed on them. |
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Term
Sensory Receptors
Golgi tendon Organs - What do they do? |
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Definition
| Communicate tension - change in tension on a muscle. They tell muscles to relax; too much tension could tear them. |
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Term
Sensory Receptors
Gamma fibers- where are they and What do they do? |
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Definition
| From the spinal cord, tighten or loosen muscle spindles, providing another layer of control Brain impulse sent through gamma fibers make muscle spindles throughout the body, making us "feel tense all over." They do the opposite when we are relaxed |
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