Download presentation
Presentation is loading. Please wait.
Published byCharity Lane Modified over 9 years ago
1
Peripheral Nerves- The Mystery of the Braids Neuroanatomy: A Clinician’s Review: CHRMC Neuroanatomy: A Clinician’s Review: CHRMC Spring 2007 Bernadette Gillick, MS, PT Bernadette Gillick, MS, PT
9
Brachial Plexus “Simplified” Dorsal Scapular Nerve Suprascapular Nerve Nerve to Subclavius Lateral Pectoral Nerve Axillary Nerve Radial Nerve Thoracodorsal Nerve Subscapular Nerve Medial Pectoral Nerve Medial Cutaneous Nerve- Arm and Forearm Musculocutaneous Nerve Median Nerve Ulnar Nerve
17
Nerves acting on the Thumb
18
Radial- Abductor Pollicis Longus
19
Ulnar- Adductor Pollicis
20
Median- Flexor Pollicis Longus and Brevis (sup head)
21
Lumbar Plexus “Simplified” Iliohypogastric Nerve Ilioinguinal Nerve Genitofemoral Nerve Lateral Femoral Cutaneous Nerve Femoral Nerve Obturator Nerve Saphenous Nerve Superior Gluteal Nerve Inferior Gluteal Nerve Sciatic Nerve Common Peroneal Nerve Superficial Peroneal Nerve Deep Peroneal Nerve Tibial Nerve Sural Nerve Posterior Femoral Cutaneous Pudendal Nerve
30
Dermatomes and Myotomes Dermatome- sensory region of skin innervated by a nerve root Myotome- muscles innervated by a single nerve root
31
28 Total Dermatomes Two aspects - absent, impaired, normal –Pin Prick (why?) –Light Touch (why?) Proprioception- absent, impaired, normal –Same one joint on each extremity –Index finger and Great Toe
32
Common Dermatomal Levels Remember – Sensation on Chest and Back skips from C4 to T2 as the upper extremities are represented. C4 also dips low on the anterior or ventral neck.
33
Common Dermatomal Levels C5- Shoulder C6- Lateral Arm and Digits 1&2 C7- Middle Digit C8- Digits 4 & 5
34
Common Dermatomal Levels Nipples- T4 Umbilicus- T10
35
Common Dermatomal Levels L4- Anteromedial Shin L5- Anterolateral Shin, dorsum of foot to big toe
36
Common Dermatomal Levels S1- 5 th toe, lateral foot, sole and calf S2, S3, S4 innervate the perineal area in a “saddle-like” distribution
39
ASIA, 2006
42
Common Dermatomal Levels Face- Trigeminal nerve Head- C2 via the greater and lesser occipital nerves
43
Multiple Segments Innervating BicepsECRLTriceps ASIA, 2006
44
Myotomes Helpful to have memorized at least one muscle that gets major innervation from each nerve root
52
Neuro Exam Do you use components of these in your own exams?
53
Blumenfeld, 2002
56
The beginning is the most important part of the work. - Plato Thank you for working with me these past four weeks! - Bernadette Gillick
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.