minhhong2000 2
Terms
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- __is a motor and sensory innervation of upper extremity
- Brachial Plexus
- __originates in post triangle of neck
- Brachial Plexus
- __roots C5-C8, T1
- Brachial Plexus
- ___are neves of roots of Brachial Plexus
- Dorsal scapular nn, Long thoracic nn, and Phrenic nn
- __product of C5
- Dorsal scapular nn
- __innervates rhomboid major and minor, levator scapula
- Dorsal scapular nn
- __product of C5-C7
- Long thoracic nn
- __innervates serratus anterior
- Long thoracic nn
- __product of C3-C5
- Phrenic nn
- __innervates diaphragm
- Phrenic nn
- Brachial extremity has trunks(3): _____
-
Superior trunk
Middle trunk
Inferior trunk - __product of C5 & C6
- Superior trunk
- Superior trunk has 2 nerves:____
- Suclavius nn (innervates subclavius) and Suprascapular nn (innervates supraspinatus & infraspinatus)
- __product of C7
- Middle trunk
- __product of C8 & T1
- Inferior trunk
- Brachial plexus trunks bifurcate to form ___
- Divisions
- Each trunk divides into ___and ____
-
Anterior divisions
Posterior divisions - there are ____ off of the division in brachial plexus
- No nerves
- There are 3 cords for the Brachial Plexus
-
Lateral cord
Medial cord
Posterior cord - __is the anterior divisions of superior and middle trunks
- Lateral cord
- Lateral cord has 2 nerves: ___
-
Lateral pectoral nn
Musculocutaneous nn - ___innervates pectoralis major
- Lateral pectoral nn
- __innervates flexors in anterior compartment
- Musculocutaneus nn
- ___descends lateral aspect of arm
- Musculocutaneous nn
- __becomes lateral cutaneous nerve of arm
- Musculocutaneous nn
- ___contributes to median nerve
-
Lateral cord
Medial cord - __anterior division of inferior trunk
- Medial cord
- __descends arm laterally to brachial artery
- Medial cord
- __passes elbow deep to bicipital aponeurosis
- Medial cord
- __no branches in axilla or arm
- Medial cord
- __ innervates all muscles in anterior compartment except ____and ___
-
Median nn
Flexor carpi ulnaris and medial 1/2 of flexor digitorum profundis - Flexor carpi ulnaris and medial 1/2 of flexor digitorum profundis innervated by ____
- Ulnar nn
- ___innervates muscles of thenar eminence and 2 lateral lumbricals
- Recurrent branch of median nn
- Musclesof thenar eminence and 2 lateral lubricals are ___
-
Abductor pollicis brevis
Flexor pollicis brevis
Opponens pollicis - Palmar sensory innervation of median nn
-
Lateral palmar skin
Skin of thumb
Index and middle finger
lateral 1/2 of ring finger - Dorsal sensory innervation of median nn
-
Skin of distal portion of index, middle, and lateral 1/2 of ring finger
Thumb - Nerves in the medial cord are _____
-
Contributes to Median nn
Medial pectoral nn
Medial cutaneous nerve of arm
Medial cutaneous nerve of forearm
Ulnar nn - __innervates pectoralis major and minor
- Medial pectoral nn
- ___general sensation for medial cord
-
Medial cutaneous nerve of arm
Medial cutaneous nerve of forearm - __descends anterior to tricep
- Ulnar nn
- __medial to brachial artery
- Ulnar nn
- __innervates nothing in arm
- Ulnar nn
- ___innervates medial 1/2 of flexor digitorum profundis and flexor carpi ulnaris
- Ulnar nn
- __branches upon entering hand
- Ulnar nn
- Deep branches of ulnar nn innervate all muscles of the hand except ____
- Thenar eminence and 2 lateral lubricals
- Superficial branches of ulnar nerve cutaneously innervate ____
- Palmar surface(little finger, medial 1/2 of ring finger, medial palm) and Dorsal surface(little finger, medial 1/2 of ring finger, and medial hand)
- ___product of posterior divisions
- Posterior cord
- Posterior cord includes:___
- Upper subscapular nn, lower subscapular nn, thoracodorsal nn, axillary nn, and radial nn
- ___innervate subscapularis muscles
- Upper subscapular nn
- __innervates teres major
- Lower subscapular nn
- __between subscapular nn
- Thoracodorsal nn
- __innervates latissimus dorsi
- Thoracodorsal nn
- __innervates deltoi and teres minor
- Axillary nn
- ___begins where axillary nn comes off
- Radial nn
- __is the longest nerve of brachial plexus
- Radial nn
- __is medial to humerus following course of profunda brachii artery
- Radial nn
- ___innervates triceps in posterior compartment
- Radial nn
- Radial splits into deep and superficial at level of lateral ____
- Humeral epicondyle
- ___is a continuation of radial nn
- Superficial branches
- __is a cutaneous function
- Superficial branches
- Superficial branches descends forearm ____
- Anteriorly and laterally
- Superficial branches dorsal innervation: ____
- Dorsum of thumb. Proximal dorsal portion of index, middle, and lateral 1/2 of ring finger. Lateral dorsal aspect of hand
- __innervates all muscles in posterior and lateral compartments of forearm
- Deep branches of radial nn
- Veins of upper extremity
- Deep or Superficial. Deep veins follow the same pattern as arteries and will have the same name
- Venous valves of upper extremity: ____
- Veins going against gravity have valves. Muscles contract to force blood back to the heart. Deep veins have more valves than superficial
- ___locates in subcutaneous tissue
- Superficial vein of upper extremity
- __begins in veous networks
- Superficial vein of upper extremity
- Superficial veins include:____
- Cephalic v, Basillic v, Median antebrachial v, Medial cubital v
- __originates from lateral aspect of dorsal venous arch
- Cephalic v
- __ascends lateral aspect of arm
- Cephalic v
- __lateral to biceps brachii
- Cephalic v
- __pierces fascia in deltopectoral triangle
- Cephalic v
- __tributary of axillary v
- Cephalic v
- __medial aspect of dorsal venous arch
- Basillic v
- __ascends medial aspect of forearm
- Basillic v
- __enters arm and ascnds medially
- Basillic v
- __medial to biceps brachii
- Basillic v
- __1/3 of the way up it does deep
- Basillic v
- ___begins at palmar venous arch
- Mdian antebrachial v
- __ascends ventral aspect of forearm
- Median antebrachial v
- __tributary of basilic v
- Median antebrachial v
- __communications between deep and superficial veins
- Median cubital v
- usually flows deep to superficial
- Compensatory system