Commonly Missed- Anatomy Unit 1
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
