Unit 1 Flashcards
What nerve innervates the trapezius muscle
Accessory n, C3-C4
What are the actions of the trapezius muscle?
Depression, Elevation, Retraction, upper rotation, Depression of scapula
Innervation of serratus anterior
Long Thoracic nerve, C5-C7
Action of Serratus anterior
Upper rotation, depression, protraction of scapula
What actions do the rhomboid major and rhomboid minor do
Elevation and Retraction of scapula
Pectoralis major innervation
Lateral (C5-C7) and median (C8-T1) pectoral nerves
Pectoralis major actions
Flexion, Adduction of arm
What muscles does the musculocutaneous nerve innervate
Coracobrachialis, Biceps, Brachialis
What muscles does the Radial nerve innervate
Triceps, Brachioradialis, Aconeus Extensor carpi radialis (longus/brevis)
What muscles does the axillary nerve innervate
Deltoid, Teres minor
What muscles does the median nerve innervate
Hand hand flexor and abduction
What muscles does the accessory nerve innervate
Trapezius
Muscles involved in extension of arm
Lats, Triceps, deltoid, teres major (Loving triceps dance tonight)
Muscles involved in adduction of arm
Pec major, teres major, coracobrachialis, latissimus, dorsi (Please take care larry)
Muscles involved in abduction of the arm
Deltoid and Supraspinatus
Muscles involved in medial rotation of the arm
Subscapularis, Lats, pec major, Teres major, deltoid (superheroes launch powerful tornado defenses)
Muscles that flex forearm
Biceps, brachialis, brachioradialis (Big burly biceps)
Muscles that extend forearm
Triceps, aconeus
Muscles that supinate forearm
biceps, supinator
Muscles that pronate forearm
Pronator teres, pronator quadratus
Muscles that flex hand
Flexor carpi radialis, flexor carpi ulnaris, palmaris longus
Muscles that extend hand
Extensor carpi radialis longus/brevis/ulnaris
Muscles that abduct hand
flexor carpi radialis, extensor carpi radialis longus, extensor carpi radialis brevis(FEE- like youre asking someone for money after abducting them)
Muscles that adduct hand
Flexor carpi ulnaris, extensor carpi ulnaris
What goes through the suboccipital triangle
subocciptial nerve, artery, vein.
Guyoans canal contents
- Ulnar nerve and artery, sits superficially to median nerve.
What causes carpal tunnel
median nerve is pinched by transverse carpal ligament
What makes an anastomoses inferior to the scapula
Dorsalscapular and thoracodorsal arteries
What is an axillary region anastemoses
ciercumflex scapular artery, between suprascapular and subscapular artery
What supplies blood to trapezius and rhomboids
- Trapezius: Transverse cervical artery
- Rhomboids: dorsal scapular artery
What are the acromioclavicular joint ligaments
-Main one that strengthens superiorly: Acromioclavicular ligament.
Others:
-Conoid ligament (medially and posterior)
- Trapezoid ligament (lateral and anterior)
Which GH ligaments strengthen anterior capsule
superior, middle, inferior GH ligaments
What ligament strengthens GH joint superiorly
coracohumeral ligament
What is most common GH dislocation
Anterior dislocation, lose in anterior inferior aspect.
What is the blood supply from the suibclavian artery to the radial and ulnar artery
Subclavian–> Axillary–>Brachial–> radial and ulnar
What ligament do you find in the supinoglenoid notch
inferior transverse scapular ligament
What muscles are the border of the quadrangular space
- Teres minor,
-Teres major
-Triceps brachii - Humerus
Contents of quadrangular space
Axillary n and posterior cercumflex artery
What are the borders of the triangular space
Teres minor, teres major, triceps brachii
Contents of triangular space
circumflex scapular a
Where do cephallic and bacillic start and then later connect
Axillary vein–> Cephalic laterally and basillic medially–> median cubital vein
What does suprascapular artery supply
supraspinatus, infraspinatus, subclavious (AC and GH joints), clavical, scapula
What does dorsal scapular artery supply
Rhomboid, levator scap, trapezius
What does the thoracodorsal artery supply
Lats, serratus anterioor, subscap, supraspinatus, infraspinatus teres major
What does circumflex scapular artery supply
teres major, infraspinatus, deltoid, triceps
GH joint
What does the transverse humeral ligament hold in place
hold long head of biceps tendon in place (runs greater to lesser tubricle)
What arm position is the arm in during GH joint dislocation
a force directed to the shoulder joint while the arm is in abduction and external rotation.
What causes wingged scapula/which nerve
Serratus anterior, Long thoracic nerve
