Commonly Missed- Anatomy Unit 1

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Upper trunk issue (C5/6)

Erbs Palsy

Largest Branch of the axillary arteries?

Subscapular

Region 3 axilla branches (distal)

Subscapular, posterior circumflex humeral, anterior circumflex humeral

Central nodes (level 2/pec minor) drain to

apical nodes in axilla

Primary flexor of the arm?

brachialis

What ligament supports the glenohumeral joint superiorly?

coracohumeral ligament

DIP

distal interphalangeal joint

Erector Spinae Innervation

dorsal rami of spinal nerves

Splenius Innervation

dorsal rami of spinal nerves

Transversospinalis Muscles Innervation

dorsal rami of spinal nerves

Impingement of C8 would not impact what action?

flexing the elbow

Erector Spinae Muscles

iliocostalis, longissimus, spinalis

lateral axillary boarder

insertions between pec major and latissimus

Deep minor intrinsic Back Muscles

interspinales, intertransversarii, levatores costarum

anterior axillary boarder

pectoral region of shoulder

MCP

metacarpophalangeal joint

Biceps brachii, coracobrachialis, brachialis innervation

musculocutaneous nerve

Apical nodes drain to

subclavian nodes before venous circulation

The nerve to subclavius DOES NOT innervate what joint

the acromioclavicular joint

3+4 lumbricals innervation

ulnar

Ulnar tunnel

ulnar artery and nerve

adductor pollicis innervation

ulnar nerve

Subscapularis Innervation

upper and lower subscapular nerves (C5, 6)

How many anterior spinal arteries are there?

1

How many posterior spinal arteries are there?

2

Flexor adductors

Flexor carpi ulnaris

Inferior/ floor axillary border

Axilla fascia/overlaying skin

What veins do the spinal veins drain into?

Azygos Vein

Triceps and anconeus innervation

radial nerve

Cutaneous innervation

C6- thumb C7- middle C8- pinky

What can spread through the Vertebral venous plexus?

Cancer

Serratus posterior muscles Innervation

Dorsal Rami of spinal nerves

Rhomboids BS and Innervation

Dorsal Scapular Nerve and artery

levator scapulae BS and Innervation

Dorsal scapular nerve and artery

Extensor adductors

Extensor carpi ulnaris

Extensor abductors

Extensor digitorum, Extensor digiti minimi, Abductor pillicis longus, extensor pollicis brevis, extensor pollicis longus

Flexor abductors

Flexor carpi radialis and flexor pollicis longus

What is the BS of sternoclavicular joint?

Internal Thoracic and suprascapular

Which deep minor intrinsic back muscle is innervated by dorsal and ventral rami?

Intertransversarii

Cause by impact to C1 when diving into a pool?

Jefferson's Burst Fracture

Lower Trunk issue (C8,T1)

Klumpkes Paralysis

Serratus anterior, intercostals BS

Lateral thoracic Artery

Innervation of sternoclavicular joint

Medial supraclavicular nerve and nerve to subclavius

What makes the Lumbar Vertebrae Unique?

Mammillary and accessory processes

Pectoralis minor innervation

Medial pectoral nerve (C8, T1)

The first lymph nodes malignment breast cancer tumors drain into?

Pectoral

Pectoral Muscle BS

Pectoral Branch Artery

Region 1 Axilla branches (Proximal to pec major)

Superior thoracic artery

Region 2 Axilla branches (posterior)

Thoracoacromial trunk and lateral thoracic

Latissimus Dorsi BS and Innervation

Thoracodorsal Nerve and artery

Trapezius BS and Innervation

Transverse cervical vessels and Accessory Nerve (CNXI)

Hypothenar muscles

abductor digiti minimi, flexor digiti minimi, opponens digiti minimi

Thenar muscles

abductor pollicis brevis, flexor pollicis brevis, opponens pollicis, adductor pollicis

Anatomical snuff box boarders

abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus

What ligament supports the acromioclavicular joint superiorly?

acromioclavicular ligament

What artery passes through the radial groove of the humerus?

arteria profunda brachii

Teres Minor Innervation

axillary N

Level 1 Pectoral/Subscapular/Humeral (lateral) lymph drains to what

central nodes

-superior axillary border (where the apex is)

clavicle, 1st rib, scapula

Medial Axillary boarder

lateral boarder rib cage

Common extensor origin?

lateral epicondyle of humerus

Pectoralis Major innervation

medial and lateral pectoral nerves

Common flexor origin?

medial epicondyle of humerus

1+2 lumbricals innervation

median

Flexor pollicis brevis innervation

median and ulnar nerve

Flexor digitorum profundus muscle innervation

median and ulnar nerves

Carpal tunnel contents

median nerve, flexor digitorum superficialis, flexor digitorum profundus, flexor pollicis longus

anatomical snuff box contents

radial artery and radial nerve

PIP

proximal interphalangeal joint

Transversospinalis Muscles

rotatores, multifidus, semispinalis

posterior axillary boarder

scapula, scapulohumeral muscles, latissimus, Teres major

acromioclavicular joint BS

suprascapular and thoracoacromial arteries

Infraspinatus Innervation

suprascapular nerve (C4-6)

Supraspinatus innervation

suprascapular nerve (C4-6)

Shoulder anastomoses

suprascapular, dorsal scapular, circumflex scapular, thoracodorsal, subscapular


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