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29 Cards in this Set
- Front
- Back
The dorsal root is comprised of....
a) afferent fibers (sensory & proprioceptive fibers)
b) efferent fibers (motor neurons to muscles & glands) |
a) afferent fibers (sensory & proprioceptive fibers) |
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Ventral root is composed of..... |
efferent fibers (motor neurons to muscles & glands) |
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What is the difference between a dermatome & cutaneous area?? |
Dermatome: area of skin innervated by nerves of an individual dorsal root
CA: """" one specific peripheral nerve |
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Thoracic limb muscles innervated by one or more of the following |
Cranial Nerve XI (Accessory nerve) Cervical spinal nerves Thoracic spinal nerves Nerves of the brachial plexus |
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The brachial plexus is formed by the ___________ of ______ -______. |
a) ventral branches b) C6-T2 |
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Cranial Nerve XI (Accessory Nerve) |
"ACCESSORIES COST MONEY"
Cleidocephalicus m. (Cleidocervicalis & cleidomastoidus mm.)
Omotransversarius m. Sternocephalicus m. Trapezius m. |
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Cleidocephalicus m. is innervated by... |
1. Cranial nerve XI (Accessory n.)
2. ventral branches of cervical spinal nn. |
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Rhomboideus m. is innervated by |
ventral branches of cervical & thoracic spinal nerves |
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Sternocephalicus m, sternohyoidues m. and sternothyroideus m. are all innervated by |
cervical spinal nerves |
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Which thoracic limb muscles are innervated by the brachial plexus? |
-Cutaneous trunci m. -Extrinsic muscles: -superficial pectoral m. -deep pectoral m. -latissimus dorsi m. -serratus ventralis thoracis m. -ALL intrinsic muscles of the thoracic limb
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Cranial pectoral nn. inervates... |
superficial pectoral m. |
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Suprascapular n. innervates ... (and what path does it take?)
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-motor to supraspinatus & infraspinatus mm.
-courses btwn supraspinatus & subscapularis mm., then across scapular notch |
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Subscapular n. provides... |
motor to majority of subscapularis m. |
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Musculocutaneous n.; 2 branches |
- muscular br.: motor to BBC
-communicating br. musculocutaneous fibers course to median n. |
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Axillary n. provides motor to.... |
-deltoideus -teres major -teres minor -caudal part of subscapularis |
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Thoracodorsal n. provides motor to... |
latissimus dorsi m. |
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Radial n. muscular brs....
-found in ____________ region -motor innervation to..... |
-brachial region
-extensors of the elbow |
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Deep br. of the radial n. provides..... |
motor innervation to extensors & supinators of antebrachium & manus |
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Superficial br. of the radial n. provides.... |
sensory...
Lateral br.: sensory to craniolateral aspect of antebrachium & dorsum of manus
Medial br.: sensory to craniomedial aspect of antebrachium & medial aspect of manus |
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Muscular br. of the median n. provides... |
motor to pronators & some flexors of antebrachium & manus |
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Caudal cutaneous antebrachial n. (part of which nerve? provides....) |
-part of ulnar n.
-provides sensory to caudal aspect of antebrachium |
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Muscular brs. of the ulnar n. provide... |
motor to some flexors of antebrachium & manus |
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Dorsal br. of the ulnar n. provides... |
sensory to abaxial aspect of digit 5 (lateral aspect of the manus) |
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Palmar br. of the ulnar n. provides... |
-motor to interossei mm.
-sensory to palmar aspect of manus |
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Caudal pectoral nn. provide... |
motor to deep pectoral m. |
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Lateral thoracic n. provides |
motor to deep pectoral and cutaneous trunci mm. |
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Long thoracic n. provides |
motor to serratus ventralis thoracis m. |
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where can the accessory n. be found? |
courses along dorsal border of omotransversarius m. |
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Brachiocephalic n. provides... |
motor to cleidobrachialis m. |