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ANAT & PHYS I: SPINE
ANAT & PHYS I: SPINAL CORD AND SPINAL NERVES
| Question | Answer |
|---|---|
| Fill in blank: REFLEX ARC ORDER: _______,Sensory Neuron,_________,________, effector. | Receptor,Integration center, Motor neuron |
| components of a reflex arc: transmits the afferent impulse to the CNS | SENSORY NEURON |
| components of a reflex arc: either monosynaptic or polysynaptic region within the CNS | INTEGRATION CENTER |
| components of a reflex arc: site of stimulus | RECEPTOR |
| components of a reflex arc: muscle fiber or gland that responds to the efferent impulse | EFFECTOR |
| components of a reflex arc: conducts efferent impulses from the integration center to an effector | MOTOR NEURON |
| Nerve Plexuses are found in the | cervical, brachial, lumbar, and sacral regions |
| Most branches are cutaneous nerves of the neck, ear, back of head, and shoulders | Cervical Plexus |
| The most important nerve of the Cervical plexus is the | phrenic nerve |
| The phrenic nerve is the major motor and sensory nerve of the | diaphragm |
| It gives rise to the nerves that innervate the upper limb | Brachial Plexus |
| Name the four major branches of the brachial plexus | ROOTS, TRUNKS, DIVISION, CORDS |
| The major nerves are the femoral and the obturator. innervates the thigh, abdominal wall, and psoas muscle | LUMBAR PLEXUS |
| serves the buttock, lower limb, pelvic structures, and the perineum. The major nerve is the sciatic, the longest and thickest nerve of the body. | SCIATIC PLEXUS |