Upper Extremity Flashcards
What kind of joint is the inter carpal joint
Synovial plane joint
What kind of joint is the radio carpals
Condylar joint
What strengths the radio carpal jointe
Anterior and posterior ligament
What movements does the radio carpal joint produce
Flexion, extension, abduction, addiction, circumduction
Explain carpal tunnel ,including symptoms, aetiology, treatment and what structures are included
Symptoms: pain and pins and needles in distribution of median nerve (lateral 3 digits)
Aetiology: overuse, swelling of tendons and tendon sheaths, cysts arising from carpal joint
Structures: created from flexor retinaculum going between pisiform and hamate
Stuck between carpal bones, tendons hypertrophy and median nerve becomes trapped
4 tendons of flexor digitorium profundus
4 tendons of flexor digitorium long us
Tendon of flexor policy’s longus
What is median nerve palsy
Inability to flex thumb, index and middle finger at MVP
Ring finger and little finger can still flex
What is ulnar nerve palsy
Inability to flex the dip joint of ring and little finger
Can’t extend interphalangesl joints
What is radial nerve palsy
Denier action of extensor muscle in forearm
Blood vessels compressed
Because forearm flexor muscles no longer opposed, wrist drops
What kind of joint is the proximal radio ulnar joint and how is it held in place
Pivot joint, radius pivots about the ulna during pronation
Held in place by annular ligament
What type of joint is the distal radio ulnar joint
Synovial pivot joint
Annular ligament holds radius head when turning
What causes the radius to pop out in children
The distal radio ulnar joint makes the radius pop out of annular ligament as there is not much muscle reinforcement
How is pronation of the forearm produced and what is it innervates by
Rotation of radius on capitulum of humerous
Enclosed by annular ligament
Produced by pronation quadrant us and pronation there’s
Innervated by median nerve
How is supination of the forearm produced and what is it Innervated by
Produced by supinator and biceps brachial
Innervated by radial and musclulocutaneous nerve
What type of joint is the elbow joint and how is it supported
Synovial hinge joint
Ulnar collateral ligament and radial collateral ligament
What makes up the cubical fossa and what goes in it
Superior: elbow articulation between humerus, radius and ulna
Lateral and medial: brachial radialis pronation
Includes: tendon for biceps brachii, brachial artery, median nerves
What are the anterior forearm muscles Innervated by
Median nerve
What are the posterior forearm muscles Innervated by
Radial nerve
What are the anterior muscles of arm Innervated by
Musclulocutaneous nerve
What’s the significance of the surgical neck of the humerous
Common fracture site
Endangers axillary nerve
What are the rotator cuff muscles
Supra spinatus
Infra spinatus
There’s minor
Subscapularis
How is the brachial plexus split up
Branches cords divisions trunks roots
Baboons come dancing to rabbits
What’s are the roots of the brachial plexus and what spinal level innervates them
Musclulocutaneous c5,6,7 Axillary c5,6 Radial c5,6,7,8,t1 Median c6,7,8,t1 Ulnar c8, t1
What muscles produce flexion at the shoulder
Pectoral is
Deltoid (anterior fibres)
Coracobrachilis
Biceps brachii
What muscles produce extension at the shoulder
Lattisiumus Dorsi
Teres major
Deltoid
What muscles produce abduction at the shoulder
Deltoid
Suprasoinatus
What muscles produce addiction at the shoulder
Pectoralis Latissimus dorsi Teres major Coracobrachialis Triceps brachii Teres minor
What muscles produce medial rotation at the shoulder
Pectoralis Teres major Latissimus dorsi Deltoid Subscapularis
What muscles produce lateral rotation at the shoulder
Deltoid
Infra spinatus
Teres minor
What muscles cause elbow flexion
Biceps brachii
Brachialis
Brachioradialis
Pronation Teres
What muscles cause elbow extension
Triceps brachii
Anconeus
What muscle cause pronation
Pronation Teres
Pronator quadrant us
What muscle cause supination
Biceps brachii
Supinator
What are the spinal levels of the brachial plexus
Three Musketeers Assasinated 5 Rats, 5 Mice and 2 unicorn
C5,6,7,8 t1
Musclulocutaneous, axillary, radial, median, ulnar
