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NWHSU Neurology Unit 4 Flash
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solutions already graded A+
- Gray Rami
- Longus Capitis and Coli
- Longus capitis, rectus capitis lateralis and anterior
- Cranial Nerve X (Vagus)
- Greater Auricular (No GSE)(a) and Lesser Occipital (No GSE) (b)
- Transverse Cervical (No GSE)
- Sup. Omohyoid (a), sternothyroid (b), sternohyoid (c), inf. Omohyoid (d)
- geniohyoid (a) and thyrohyoid (b)
- Supraclavicular (No GSE)
- Phrenic to Diaphragm
- Scalenes and Levator Scapula, SCM, trapezius
- Spinal Accessory (a) and hypoglossal (b) Give me the name of these branches of the cervical plexus. If they have no name, tell me what they innervate. Include if they do not contain GSE. (P.C. - Taran Barrett) There isn't one. C1 doesn't provide sensory information. Trigeminal does that. Where is the C1 Dermatome?
- Greater Occipital
- Trigeminal I (Opthalmic)
- Lesser Occipital
- Greater Auricular
- Trigeminal III (Mandibular)
- Trigeminal II (Maxillary)
- C3-
- C4, 5
- Supraclavicular
- Transverse Cervical Tell me what nerves provide sensory innervation for the areas of the face. (P.C. - Taran Barrett) C1 Dorsal Primary Rami. Carries GSE, GSA, Post Ganglionic Sympathetic GVE. What rami does the Suboccipital nerve arise from? What nerve fibers does it carry? Suboccipital Nerve The muscles Obliquus Capitis Superior, Obliquus Capitis Inferior, and Rectus Capitis Posterior Major and Minor are ALL innervated by what nerve? Erector Spinae, Transversospinales, and Suboccipitals What three groups of muscles does the Dorsal Primary Rami innervate? GSE, GSA, GVE (post ggl sympathetic), GVA (Sympathetic) What nerve fibers can you find the Ventral Root? C1, C2, C3. Geniohyoid, thyrohyoid, superior omohyoid, sternohyoid, inferior omohyoid. The Ansa Cervical comes from what spinal segments? What nerves does it carry? Geniohyoid, thyrohyoid, superior omohyoid, sternothyroid, inferior omohyoid, and sternohyoid. What muscles are innervated by the Ansa Cervical nerve?
The Spinal Accessory cranial nerve arises from lateral ventral horns of the spinal segments C2-5. The Spinal Accessory cranial nerve arises from _____________ of the spinal segments _______________. The SVE nerve fibers of the Spinal Accessory nerve go on to innervate musculature of pharynx and larynx while the SVE/GSE nerve fibers go on to innervate 3 muscles named the SCM, trapezius, and levator scapulae. The SVE nerve fibers of the Spinal Accessory nerve go on to innervate ___________________ while the SVE/GSE nerve fibers go on to innervate 3 muscles named the _____________________. GSA, GSE, GVA, Post GGL GVE (sympathetic) In muscular branches, what nerve fibers will you almost always find? GSA, GVA, Post GGL GVE In cutaneous branches, what nerve fibers will you almost always find? Extrinsic and Intrinsic Muscles of the tongue The GSE fibers of the Hypoglossal Nerve innervate what? The Levator Scapulae is innervated by the Spinal Accessory nerve and from the spinal segments C3 and C4. The Levator Scapulae is innervated by the _________________ nerve and from the spinal segments _________________. C3 and C4. Spinal Accessory Nerve The trapezius is innervated by what spinal segments? What nerve? Spinal Accessory Nerve. (CN 11) Spinal Segments C3 and C4. The Sternocleidomastoid is innervated by what nerve? What spinal segments? The palmar cutaneous branch DOES NOT pass under the transverse Ligament and the recurrent and palmar-digital cutaneous nerve DOES. The palmar cutaneous branch (DOES/DOES NOT) pass under the transverse Ligament and the recurrent and palmar-digital cutaneous nerve (DOES/DOES NOT).
- Long Thoracic (C5-6)
- Dorsal Scapular (C5)
- Nerve to Subclavius (C5, 6)
- Suprascapular (C5, 6)
- Upper Subscapular (C5, 6)
- Thoracodorsal (C6, 7, 8)
- Lower Subscapular (C5, 6, 7)
- Lateral Pecotral (C5, 6, 7) 9.Musculocutaneous (C5, 6, 7) Walk me through the names of nerves from 1-9. Be sure to include vertebral segments. (P.C. Taran Barrett)
- Axillary (C5, 6)
- Radial (C5-8, T1)
- Median (C5-8, T1)
- Ulnar ([C7], C8, T1)
- Medial Antebrachial Cutaneous (C8, T1)
- Medial Brachial Cutaneous (T1)
- Medial Pectoral (C8, T1)
- Medial Cord
- Lateral Cord Walk me through the names of nerves from 10-18. Be sure to include all vertebral segments. (P.C. Taran Barrett) A = Roots B = Trunks C = Divisions
Motor: Triceps (Radial nerve) OR Wrist Flexors Sensory: Middle finger, palmar Reflex: Triceps at tendon proximal to olecranon process testing radial nerve. Walk me through a C7 MSR test. Motor: Finger Flexors (Median nerve) Sensory: Medial side of hand Reflex: Finger flexor (median nerve) Walk me through a C8 MSR test. Motor: Interossei (ulnar nerve) Sensory: Medial Antebrachium Reflex: NO T1 REFLEX Walk me through a T1 MSR Test C5-C8 and T What spinal segments make up the roots of the brachial plexus? Long Thoracic Nerve and Dorsal Scapular Nerve (Posterior Divison) What nerves arise form the roots of the brachial plexus? Serratus Anterior from root of C5, C6, C The long thoracic nerve innervates what muscle? What spinal segments does it come from? Dorsal Scapular Nerve Levator Scapulae, Rhomboids Major, and Rhomboids Minor are all innervated by what nerve? C The Levator Scapulae, rhomboids major, and rhomboids minor are all innervated by what spinal segment? There are three trunks to the brachial plexus. Upper which comes from spinal segments C5, 6, middle which comes from spinal segment C7, and lower which comes from spinal segments C8 and T1.
There are three trunks to the brachial plexus. Upper which comes from spinal segments ______________, middle which comes from spinal segments ___________________, and lower which comes from spinal segments __________________. Nerve to subclavius and suprascapular What arises from the upper (C5, C6) trunk of the brachial plexus? C5 and C The subclavian nerve comes from the spinal segments..... Supraspinatus (C5) and Infraspinatus (C5, 6) Suprascapular Nerve innervates two muscles. What are they? Include what spinal segments innervate them. There are two divisons of the brachial plexus. Generally speaking, the anterior divison supplies flexors, adductors, and pronators while the posterior divison supplies extensors, abductors, and supinators. (Muscle groups) There are two divisons of the brachial plexus. Generally speaking, the anterior divison supplies __________________, _______________, and ______________ while the posterior divison supplies ___________________, _______________, and ________________. (Muscle groups) None What spinal nerves arise from the divisons of the brachial plexus? Lateral (C5-7): Lateral Pectoral, Musculocutaneous Medial (C8-T1): Medial brachial cutaneous, medial pectoral, ulnar Posterior (C5-T1): Upper and Lower Subscapular, Thoracodorsal, axillary, radial The cords of the brachial plexus are lateral, medial, and posterior. Give me what nerves arise from them and what segments. Lateral and Medial Cords What cords form together to create the Median nerve? Lateral Pectoral (C5, 6, and 7) and the Musculocutaneous nerves (C5, 6, 7)
antebrachial cutaneous at spinal segments ________, and the ulnar nerve at spinal segments __________. Skin on the medial arm is innervated by the the medial brachial cutaneous nerve and the skin on the medial forearm is innervated by the medial antebrachial cutaneous nerve. Skin on the medial arm is innervated by the the ______________________ and the skin on the medial forearm is innervated by the _____________________. [C6, C7] and C8, T What spinal segments are associated with the Medial pectoral Nerve? Pectoralis Major and Minor The medial pectoral nerve innervates what? Medial Pectoral Nerve What innervates pectoralis minor? (C7) C8 and T What spinal segments does the ulnar nerve arise from? Ulnar Nerve What innervates the Flexor Carpi Ulnaris, ulnar 1/2 Flexor Digitorum, and Profundus? Ulnar Nerve What innervates the thenar, hypothenar, and cutaneous portions of the hand? Thenar Adductor Pollicis and Flexor Pollicis brevis are a part of what group of hand muscles? Hypothenar Opponens Digiti Minimi, abductor and Flexor Digiti Minimi, and the lumbricals are all a part of what muscle group?
Palmar cutaneous, superior anterior aspect of 1 1/2 medial digits, and Posterior aspects of 1 1/2 medial digits and palm. What are the cutaneous portions that the ulnar nerve innervates? C8 and T The thenar and hypothenar are all innervated by what spinal segments? Ulnar Nerve (C8 and T1) The Flexor Carpi Ulnaris is innervated by what nerve? At what spinal segments? Radial 2 fingers are innervated by the median nerve ((C7), C8 and T1) while the ulnar 2 fibers are innervated by the ulnar nerve (C8 and T1). What innervates the flexor Digitorum Profundus? Include spinal segments? Median Nerve What nerve is sensitive to supracondylar fracture or wrist laceration? Median Nerve What nerve is volunerable to compression resulting in paralysis of thenar muscles. This nerve is also involved in carpal tunnel syndrome. Median Nerve (C5, C6) Pronator teres is innervated by what nerve? At what segment? Median nerve at C6 and C Flexor Carpi Radialis is innervated by what nerve? What spinal segments? Median Nerve (C7, C8, T1) The Flexor Digitorum Superficialis is innervated by what nerve? At what spinal segment? Median Nerve (C7, C8, and T1) What innervates the Flexor Pollicis longus? At what spinal segment? Median Nerve (C8 and T1) Pronator Quadratus is innervated by what nerve? At what spinal segment?
Axillary Nerve (C6) Teres Minor is innervated by what nerve? At what spinal segment? C5, C6, C7, C8, (T1) What spinal segments does the radial nerve arise from? Radial Neve What is the largest branch of the posterior brachial plexus? Radial Nerve (C6-8 and T1) What innervates what innervates the Triceps Brachii Nerve? Radial Nerve (C5 and C6) What innervates the Brachioradialis muscle? At what segment? Radial Nerve (C6) What innervates then Supinator muscle? At what spinal segment? C6 and C7 by the Radial Nerve Extensor Carpi Radialis Longus AND Brevis are innervated by what nerve? At what spinal segment? Radial Nerve (C6 and C7) The abductor Pollicis longus is innervated by what nerve? Radial Nerve (C6 and C7) The Extensor Pollicis Brevis is innervated by what nerve? What segments? Radial Nerve (C6-8) The Extensor Carpi Ulnaris is innervated by what nerve? What segment? Radial Nerve (6-8) The Extensor Digitorum is innervated by what nerve? What segment? Radial Nerve (6-8) The Extensor Digiti Minimi is innervated by what nerve? What segment?
Radial Nerve (C7 and 8) The Extensor Indices is innervated by what nerve? What segment? Radial Nerve (C7 and 8) The Extensor Pollicis Longus is innervated by what nerve? What segment? Radial nerve (C7 and C8) The anconeus is innervated by what nerve? What segment? ALL Red Areas: Radial Nerve Red A1: Inferior Lateral Cutaneous Nerve of arm (C5, 6) Red A2: Superficial Branch (C6-8) Red A3: Posterior Cutaneous Nerve (C5-8) Red A4: Inferior Lateral Cutaneous Nerve of arm Red A5: Posterior Cutanous Nerve (C[5], 6-8) Red A6: Superficial Branch of Dorsal Digital Branches (C6-8) Green: Lateral Cutaneous Nerve (C5-[7], From musculocutanous) Orange: Medial Cutaneous Nerve of arm (C8, T1-2) Yellow: Median Nerve (Palmar and Palmar Digital Branchs) Purple: (Medial Cutaneous Nerve of forearm) What nerves innervate these cutaneous parts of the foreman? Include spinal segment. Pronator teres, Flexor digitorum profundus, and transverse carpal ligament. What are the three entrapment sites for the median nerve? Thumb Muscles: Abductor Pollicis Brevis, Opponens Pollicis, Flexor Pollicis Brevis If you have an entrapment for the median nerve at the carpal tunnel, what muscles are effected? Musculocutaneous and Median nerve
What muscles are innervated in the antebrachium by the radial nerve? Extensor Carpi Radialis Brevis, E Carpi Ulnaris, E Digitorum, E Digiti Minimi, Extensor Indicis, E Pollicis longus, E Pollicis brevis, Abductor Pollicis longus What muscles are innervated by the deep radial nerve? Geniohyoid, Thyrohyoid, Omohyoid, Sternohyoid, Sternothoid, Phrenic, Supraclavicular, transverse cervical, Great auricular, and lesser occipital What are all the nerves which arise from the cervical plexus? Omohyoid, Sternohyoid, and Sternothyoid (SOS) What are the muscles of the Ansa Cervicalis. Ansa Cervicalis: Sternohyoid, Omohyoid, and Sternothyroid What nerves of the cervical plexus are motor? (GSE fibers) Supraclavicular, Transverse Cervical, Great auricular, and lesser occipital What nerves of the cervical plexus are cutaneous? (GSA fibers) Semispinalis The greater auricular gets entrapped in what? SVE Accessory Nerve contains what kind of nerve fibers? Phrenic (C3-5) What nerve travels to the diaphragm? Trapezium and SCM The Accessory nerve innervates what muscles? Position of Attention (Hands on hips, push P-A) What test do we use to check the Rhomboids? Reach Test What test do we use to check the Serratus Anterior? Spastic
Spinal damage results in what type of paralysis? Flaccid Lesions result in what kind of paralysis? Suprascapular Nerve Damage If you see a patient with supraspinatus and infraspinatus muscle wasting, what nerve is damaged? Lateral Cord: Anterior Division of C5- Medial Cord: Anterior Divison of C8-T Posterior Cord: Posterior Divison of C5-T The lateral cord is the (anterior/posterior) divison of what spinal nerves? What about the medial and posterior cord? Thoracic Outlet Syndrome Pectoralis Minor that is spasming can cause..... Palmar Cutaneous Branch DOES NOT pass under transverse ligament. Recurrent Thenar and Palmar Digital Cutaneous Nerve does. What anatomical feature causes a useful distinction between carpal tunnel syndrome and pronator teres syndrome? Abductor Pollicis Brevis, Flexor Pollicis Brevis (superficial head), and Opponens Pollicis (All C8-T1) What are the muscles that are innervated by the recurrent branch of the median nerve? (What spinal segments?) ADD Pollicis, PP Brevis deep. In the thumb, what muscles are innervated by the ulnar nerve? AB Pollicis brevis, Opponens Pollicis, and PP Brevis superior In the thumb, what muscles are innervated by the median nerve? AB Pollicis Longus In the thumb, what muscles are innervated by the Radial nerve? Palmar Digital Branch (C8-T1)
