Anatomy - Upper Limb Flashcards
Pec major goes from (3 places)
Sternum
Upper 6 costal cartilages
Medial 1/2 clavicle
Pec major goes to (1)
Anterior axillary fold of lateral humerus
Pec major actions (3)
ADDuction of arm
Flexion of arm
Medial rotation of arm
Pec major nerve supply
C5-T1
Medial and lateral pectoral nerve
Pec minor From (1)
Ribs 3-5
Pec minor goes to (1)
Coracoid process of scapula
Pec minor actions (2)
Stabalises scapula
Depresses tip of shoulder
Pec minor nerve supply
C8-T1 Medial and lateral pectoral nerve
Trapezius goes from (2)
Occipital protuberance
Cervical and thoracic vertebrae
Trapezius goes to (2)
Spine of scapula
Lateral 1/3 clavicle
Trapezius actions (4)
Elevates, retracts, rotates scapula
Braces shoulder backwards
Trapezius nerve supply
CN XI Spinal accessory nerve
Latissimus dorsi goes from (2)
T6-L5 spines
Iliac crest
Latissimus dorsi goes to
Intertubercle groove of humerus
Latissimus dorsi actions (3)
Adduction of arm
Medial rotation of arm
Raises body towards arm in climbing
Latissimus dorsi nerve supply
C6-7 Long thoracic nerve
Serratus anterior goes from (1)
Lateral surface of ribs
Serratus anterior goes to (1)
Medial border of scapula
Serratus anterior actions (3)
Rotates scapula
Protracts scapula
Holds scapula against thoracic wall
Sternoclavicular joint type
Fibro-cartilage with articular discs
Acromio-clavicular joint type
Fibro-cartilage with articular discs
Changes seen in acromio-clavicular joint dislocation
Rupture of AC ligament and CC ligament causes acromion to appear inferior to clavicle and more prominent.
Subscapularis from (1)
Subscapular fossa
Subscapularis to (1)
Lesser tubercle of the humerus
Subscapularis actions (2)
Medial rotation of arm
Adduction of arm
Subscapularis nerve supply
C5-7 Subscapular nerve
Teres major from (1)
Lower angle of scapula
Teres major to (1)
Intertubercular sulcus of humerus
Teres major actions (2)
Adduction of arm
Medial rotation of arm
Teres major nerve supply
C6+7 Lower subscapular nerve
Which artery supplies the circumflex humeral artery?
Axillary artery
Brachial plexus comes from which nerve roots
C5-T1
Broad structure of brachial plexus
Roots – Trunks – Divisions – Cords – Nerves
Waiter’s tip palsy
Superior plexus injury caused by separation of neck from shoulder
Claw hand palsy
Inferior plexus injury caused by sudden pull of arm superiorly
Chest drain insertion site
5th intercostal space, midaxillary line
Lymph from lateral 1/2 of breast drains to
Axillary nodes: 75% anterior Central Apical Lateral
Lymph from medial 1/2 of breast drains to
Parasternal nodes
Other sites of breast lymph drainage (3)
Posterior intercostal nodes
Infraclavicular nodes
Supraclavicular nodes
Supraspinatus actions (1)
Initiates abduction of arm
Supraspinatus nerve supply
C4-C6 suprascapular nerve
Infraspinatus actions (1)
Lateral rotation of arm
Infraspinatus nerve supply
C4-C6 suprascapular nerve
Teres minor actions (1)
Lateral rotation of arm
Teres minor nerve supply
C5-C6 Axillary nerve
Deltoid actions
Anterior (2)
Mid (1)
Posterior (2)
Anterior - Flexion and medial rotation of arm
Mid - Abduction
Posterior - Extension and lateral rotation of arm
Deltoid nerve supply
C5-6 Axillary nerve
Shoulder movements - Flexion (2)
0-90
Pec major
Anterior deltoid
Shoulder movements - Extension (3)
0-45
Teres major
Latissimus dorsi
Posterior deltoid
Shoulder movements - Internal rotation (5)
0-40 Pec major Latissimus dorsi Teres major Anterior deltoid Subscapularis
Shoulder movements - External rotation (3)
0-55
Infraspinatus
Teres minor
Posterior deltoid
Shoulder movements - Adduction (2)
0-45
Pec major
Latissimus dorsi
Shoulder movements - Abduction (4)
0-180 Supraspinatus Deltoid Trapezius (rotates scapula) Serratus anterior (rotates scapula)
Shoulder joint type
Synovial ball and socket
Shoulder joint is stabilised by glenohumeral ligaments for
Anterior reinforcement
Shoulder joint is stabilised by coraco-humeral ligaments for
Superior reinforcement
Shoulder joint is stabilised by coraco-acromial ligaments for
Superior protection
Coraco-acromial arch contains (2)
Supraspinatus tendon insertion
Subacromial bursa
Rotator cuff stability direction - subscapularis
Anterior
Rotator cuff stability direction - Supraspinatus
Superior
Rotator cuff stability direction - Infraspinatus
Posterior
Rotator cuff stability direction - Teres minor
Posterior
Action of coracobrachialis (2)
Flexion of forearm
Adduction of arm
Nerve supply of coracobrachialis
C5-7 musculocutaneous nerve
Action of brachialis (1)
Flexion of forearm
Nerve supply of brachialis
C5-6 Musculocutaneous nerve
Action of biceps (2)
Flexion of forearm
Supination of forearm
Nerve supply of biceps
C5-6 musculocutaneous nerve
Brachial pulse can be felt
Medial to biceps tendon at the elbow
The brachial artery is a continuation of
the Axillary artery
The brachial artery is accompanied by deep veins called
venae comitantes
Main branches of the brachial artery (5)
Profunda brachii (winds behind the humerus with the radial nerve in the spiral groove to anastamosis at the elbow)
Muscular
Nutrient (supplies the humerus)
Ulnar collateral (superior and inferior. Accompanies ulnar nere to anastamosis at the elbow
Terminal - radius and ulnar
Median nerve comes from which brachial plexus roots
Medial and lateral
Surface marking of median nerve
Crosses brachial artery medially in mid arm
Lies medial to brachial artery in cubital fossa, medial to bicipital tendon
Musculocutaneous nerve supplies
Skin of lateral forearm
Musculocutaneous nerve is the nerve of which component of the arm
Flexor component. Supplies
Corachobrachialis
Brachialis and
Biceps brachii
Ulnar nerve surface markings
Passes down medial side of arm and runs posterior to medial epicondyle
Medial cutaneous nerve of the arm supplies the
Skin on the medial side of the arm
Medial cutaneous nerve of the forearm supplies the
Skin on the medial side of the forearm
Intercostobrachial nerve supplies the
medial glenoid skin
Supratrochlear lymph nodes lie
Subcutaneously above the medial epicondyle
Supratrochlear lymph nodes drain
Ulnar side of forearm and hand
Infraclavicular lymph nodes lie
In the delto-pectoral groove under the mid-clavicle
Infraclavicular lymph nodes drain
The radial side of the upper limb
Actions of triceps
Extension of forearm
Triceps nerve supply
C6-8 Radial nerve
Course of the radial nerve
Runs with profunda brachii artery between long and medial heads of triceps into the posterior compartment where it lies in the spiral groove of the humerus at the midpoint. Next moves anterior and passes over the lateral epicondyle.
Radial nerve is easily damaged with what injury
Humeral shaft fractures
Elbow joint type
Synovial hinge joint
Bony articulations of elbow joint
Humeral capitulum –>
Radial head
Bony articulations of elbow joint
Trochlea of humerus –>
Trochlear notch of ulna
What does the Lateral collateral ligament of elbow look like and where does it run from
Fan like on the radial side from the epicondyle
Medial collateral ligament of elbow
3 bands to the coranoid process on the ulna