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Unit 2F part A

Peripheral Nervous System

QuestionAnswer
Periphery means along the ? Outside
PNS extends beyond the CNS thus it includes all of the nervous tissue structures except the ? Brain and Spinal cord
Most of the PNS is not protected by ________, unlike the CNS Bone
PNS is composed of ___ pairs of cranial nerves and ____ pairs of spinal nerves 12, 31
Spinal nerves originate from the ? Spinal Cord
Spinal cord made up of : ____ pairs CERVICAL of spinal nerves 8
Spinal cord made up of : ___pairs of THORACIC spinal nerves 12
Spinal cord made up of : ____ pairs of LUMBAR spinal nerves 5
Spinal cord made up of : ____ pairs of SACRAL spinal nerves 5
Spinal cord made up of : ____ pair(s) of COCCYGEAL spinal nerves 1
Spinal nerves branch to form ______ & _____ rami Ventral, Dorsal
Dorsal rami supply structures on the ? Back
Ventral rami will supply structures on the _____ of the torso and the entire ______ (_____ & ____ Limbs) therefore a nerve that passes through the ventral ramus supplies the back of the hand front, extremities, upper & lower
Plexi's of the body are Cervical , Brachial, Lumbosacral (Lumbar , Sacral)
Cervical Plexus includes ventral rami ? C1-C4
Cervical Plexus will supply _____ & ____ of the NECK Muscles, Skin
Cervical Plexus: the PHRENIC nerve comes off of cervical vertebrae __,__,__ and supplies the diaphragm for ___________ (C3,C4,C5 ) respiration 3,4,5 KEEP the diaphragm alive **
Brachial Plexus includes ventral rami ? C5-T1
Brachial Plexus supplies the ENTIRE upper limb EXCEPT FOR what ? 3 things Trapezius , the Skin over the upper medial portion of the arm, part of the upper shoulder
how many total nerves come off the Brachial plexus ? and how many will we focus on ? 16 , only 4
The final 4 brachial nerves ? (MMUR) Musculocutaneous , Median , Ulnar , Radial
Lumbo-sacral plexus includes ventral rami ? L1-S4
_______Plexus begins and is located in the posterior wall of the abdoman within ______ _____ muscle ? Lumbar , psoas major
______ plexus begins and is located in the pelvis. Sacral
Lumbar Plexus includes ventral rami ? L1-L4
2 major nerves of the lumbar plexus ? Femoral nerve & Obturator nerve
Lumbar Plexus : (L?-L?) supplies the majority of the Anterior thigh muscles (L2-L4)Femoral Nerve
Lumbar Plexus : (L?-L?) nerve that supplies the majority of the medial thigh muscles (L2-L4) Obturator Nerve
Sacral plexus includes ventral rami ? L4-S4
5 Major nerves of the Sacral plexus 1) Posterior femoral cutaneous n. 2) Sciatic n. 3) Superior gluteal n. 4) Inferior gluteal n. 5) Pudendal n.
Sacral plexus: largest cutaneous all nerves in the body Posterior femoral cutaneous n.
Sacral plexus: Largest of ALL nerves in the body (L?-S?) Sciatic nerve (L4-S3)
Nearer the back of the knee the sciatic nerve branches off into 2 other nerves what are they Tibial nerve , Common Fibular ( peroneal )
Sacral plexus: which nerve that branches off the sciatic nerve supplies the posterior leg and most of the foot Tibial nerve
Sacral plexus: which nerve that branches off the sciatic nerve branches again into the ____ fibular n. which supplies the ANTERIOR leg and the _______ fibular n. (_______ n.) which supplies the LATERAL Leg. Common fibular n. Deep, Superficial (peroneal n.)
Sacral plexus: (L?-S?) nerve that supplies gluteus medius, gluteus minimus , tensor fascia latae Superior gluteal n. (L4-S1)
Sacral plexus : (L?-S?) supplies gluteus maximus Inferior gluteal n. (L5-S2)
Sacral plexus :(S?-S?) nerve that supplies genitalia . what is it also known as ? Pudendal n. ( S2-S4 ) (fibular n.)
Created by: osabdelr
 

 



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