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CHAPTER13
Stack #83325
| Question | Answer |
|---|---|
| Vertebral cavity | 1 |
| epidural space | 2 |
| dura mater | 3 |
| subdural space | 4 |
| arachnoid mater | 5 |
| subarachnoid space | 6 |
| pia mater | 7 |
| dura mater | outer |
| arachnoid mater | middle CEREBROSPINAL FLUID |
| pia mater | inner |
| Spinal taps | Pass through spinous process of rth lumbar vertebrae |
| denticulate ligaments | extensions of pia mater |
| Dura mater extends | sacral second vertebrae |
| Spinal cord extends | medulla obongata to the superior border of second lumbar vertebrae |
| Elongation of spinal cord stops at age | 4-5 the vertebral column continues to grow |
| Cervical enlargement | C4-T1 upper limbs |
| Lumbar enlargement | T9-T12 |
| The spinal cord terminates at | conus medullaris |
| filum terminale | extension of the pia mater; anchors the spinal cord to coccyx |
| The spinal cord is shorter than vertebral column | Nerves arise from the lumbar sacral and coccygeal region |
| Cauda equina | are the roots of the nerve that come from the lumbar, sacral and coccygeal regions |
| cervical nerves | 8 |
| thoracic nerves | 12 pairs |
| Lumbar nerves | 5 pairs |
| Sacral nerves | 5 pairs |
| Coccygeal nerve | 1 |
| posterior dorsal root | contain only sensory axons that go into CNS |
| anterior ventral root | motor neurons conduct impulses from the CNS |
| Spinal nerve roots exit the vertebral cavity | intervertebal foramina |
| gray mater forms | horn/nuclei |
| white matter | columns/tracts |
| Spinal nerves are part of the | PNS |
| Spinal nerves-How many? | 31 pairs |
| endoneurium | inner most layer |
| perineurium | groups of axons are arranged in bundles or fascicles middle layer |
| epineurium | outer most covering of the ENTIRE NERVE |
| Branches | rami |
| Posterior dorsal ramus | Trunk and muscles of the back |
| Anterior ventral ramus | Upper and lower limbs |
| Meningeal branch | reenters the vertebral cavity |
| Axons of the anterior rami do not go directly to the body structure | EXCEPTION-T2-T12 |
| Cervical plexus | C1-C5 phrenic C3, C4, C5 keep the diaphragm alive |
| Plexus always share a nerve | (blank) |
| T2-T12 are also knoen as | intercostal nerves; NO PLEXUS; Supply intercostal abdominal and skin region |
| Brachial Plexus | C5-C8 and T1 |
| IN order from the Vertebrae out | Randy Travis Drinks Cold Beer RAMUS TRUNKS DIVISION CORDS BRANCHES |
| Brachial plexus | shoulder and limbs |
| Five important nerves arise from brachial plexus | MA RUM-Median, Axillary, Radial, Ulnar, and Median Nerves |
| Erb-Duchenne Palsy/Waiter's tip | Shoulder Adducted-Arm Medially Rotated-Elbow is extended-Forearm pronated-Wrist flexed--LOSS OF SENSATION ON THE LATERAL SIDE |
| Wrist drop | Radial nerve- Inability to extend the wrist and fingers |
| Median Nerve Injury | Effect palm and fingers-no pronate forearm and flex proximal interphalangeal joints of all digits |
| Ulnar nerve injury | inability to abduct or adduct the fingers; CLAWHAND-Loss of sensation over the little finger |
| Long thoracic Nerve injury | Paralysis of serratus anterior MEDIAL BORDER PROTRUDES--Winged scapula |
| Lumbar plexus L1-L4 supplies | anterolatera abdominal wall, external genitals, part of lower limbs |
| LARGEST NERVE ARISING FROM THE LUMBAR PLEXUS | FEMORAL NERVE |
| Femoral Nerve injury | Inabilty to EXTEND THE LEG |
| Sacral Plexus | L4-L5 and S1-S4 |
| THE LARGEST NERVE IN THE BODY | SCIATIC |
| Most common form of bank pain is caused by | compression of the sciatic nerve |
| The majority of sciatic injuries are common | Common fibular portion |
| Footdrop | Damage to common fibular nerve causes the foot to be PLANTAR FLEXED |
| EQUINOVARUS | Injury to fibular nerve plante flexed and INVERTED |
| CALCANEOVALGUS | Dorsiflexion and EVERSION : Tibial nerve |
| FOOT DROP | Plantar flexed-Fibular Nerve |
| SCIATIC | LARGEST OF THE SACRAL PLEXUS AND BODY!!! |
Created by:
May07-Pass
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