Week 8-11 - Upper Limb Flashcards
What is the only bony attachement between the trunk and the upper limb
The Clavicle
What is found at the most superior end of the spine of the scaula
Acromonium
What are the main movements of the scapula
Elevation, depression, rotation, retraction, protraction
What is the joint between the sternum and clavicle
Sternoclavicular joint
What is the space inbetween the tubercles on the humerus called
Intertubercular groove
Why is the glenohumeral joint so unstable
Because the head of the humerus is so big compared to the facet of the glenoid cavity
How much stability does the labrum provide
20%
What type of joint is the glenohumeral joint
Ball and socket
What is stability of the joint also stabilised by
Muscles that attach from the scapula to the humerus
Origin of the trapezius
Spine
Innervation of the trapezius
C3 C4
Insertion of the trapezius
Clavicle and spine of the scapula
Movements the trapezius
Depress, retract or rotate the scapula
What are the three bands of the deltoids
Anterior, posterior and lateral fibres
Movement acheived by the anterior fibrers
Flexes and medially rotates the arm
Movement achieved by the posterior fibres
Extends and laterally rotates the arm
Movement achieved by the lateral fibres
Abducts the arm
Innervation of the deltoids
Auxillary nerve from C5, C6
Origins of the deltoids
Lateral end of the clavicle, acromion, spine of the scapula
Inserstion of the deltoids
Insert at the deltoid tuberosity
Origin of the teres major
Dorsal surface of the inferior angle, lower part of the lateral border
Insertion of the teres major
Medial lip of the intertubercular sulcus of the humerus
Innervation of the teres major
C5-C8
Origin of the rhomboid major
Spinous process of T2-T5
And the supraspinous ligament
Insertion of the rhomboid major
Medial border of the scapula from the level of the spine of the scapula to the inferior angle
Movements of the rhomboid major
Keeps the scapula pressed against the thoracic wall and scapula retraction
Innervation of the rhomboid major
Dorsal scapula
Origin of the rhomboid minor
Inferior border of the nuchal ligament
Insertion of the rhomboid minor
Medial border of the scapula at the level of the spine of the scapula
Movements of the rhomboid minor
Retraction of the scapula
Innervation of the rhomboid minor
Dorsal scapula nerve (C5)
Origins of the lat. dorsi
Spinous process T7 - T12
Rib 11/12
Posterior 1/3 of the tip of the iliac crest
Lumbar and scaral vertebrae
Insertions of the lat. dorsi
Bicipital groove of the humerus
Movements of the lat. dorsi
Adducts, extends and internally rotates the arm at the shoulder
Innervation of the lat. dorsi
Thoraedorsal nerve (C6-8)
Origins from the levator scapulae
Posterior tubercule transverse process of C1-C4
Insertions of the leavtor scapulae
Medial border of the scapula
Movements of the levator scapulae
Elevation of the scapula
Innervation of the levator scapulae
Fourth and 5th cervical nerves
Origin of the pec major
Anterior surface of the sternal angle and 1/2 of the clavicle
Insertions of the pec major
Lateral lip of the bicipital groove
Movements of the pec major
Flexion of the humerus, aducts the humerus, medial rotation of the humerus - attachment of the trunk to the arm
Innervations of the pec major
Many cervical nerves of the spine
Origins of the pec minor
From the ribs
Innervatios of the pec minor
Median pectoral nerve
Insertion of the pec minor
On the coracoid process
Movement of the pec minor
Stabilises the scapula
Origin of the trapezius
Spinous process of the vertebrae C7 - T12
Nuchal ligament
Occipital bone
Insertion of the trapezius
Posterior border of the lateral 1/3 of the clavicle
Acromion process
Spine of the scapula
Innervation of the trapezius
Cervicle spinal nerves C3 C4
Actions of the trapezius
On the scapula
Rotation // Retraction // Elevation // Depression
Origin of the deltoids
Anterior border and upper surface of the lateral 1/3 of the clavicle
Acromion process
Spine of the scapula
Insertion of the deltoids
Deltoid tuberosity
Innervation of the deltoids
Axillary nerve
Action of the anterior fibres of the deltoids
Flexes and medially rotates the arm
Action of the posterior fibres of the deltoids
Extends and laterally rotates the arm
Action of the lateral fibres of the deltoids
Abduction of the arm
Origin of the teres major
Posterior apect of the inferior angle of the scapula
Insertion of the teres major
Medial lip of intertubercular sulcus of the humerus
Innervation of the teres major
Lower subscapular nerve
Action of the teres major
Humerus - adduction, internal rotation, extension
Scapula - protraction and depression
Origin of the rhomboid major
Spinous process of T2-T5
Insertion of the rhomboid major
Medial border of the scapula (inferior to the insertion of the rhomboid minor)
Innervation of the rhomboid major
Dorsal scapula nerve
Action of the rhomboid major
Scapula - retraction, depression
Glenoid cavity - depression
Origin of the rhomboid minor
Nuchal ligaments
Spinous processes of the C7 - T1
Insertion of the rhomboid minor
Medial border of the scapula (superior to the insertion of the rhomboid minor)
Innervation of the rhomboid minor
Dorsal scapula nerve
Action of the rhomboid minor
Scapula - retraction, rotation
Origin of the latissimus dorsi
Spinous processes of vertebrae T7 - L5 Thoracolumbar fascia Iliac crest Inferior 3 - 4 ribs Inferior angle of the scapula
Insertion of the latissimus dorsi
Floor of the intertubercular groove of the humerus
Innervation of the latissimus dorsi
Thoracodorsal nerve
Action of the latissimus dorsi
Arm
Adduction // extension // medial rotation
Origin of the levator scapulae
Posterior tubercles of the transverse processes of C1 - C4
Insertion of the levator scapulae
Superior part of the medial border of the scapula
Innervation of the levator scapulae
Cervical nerve - C3, C4
Dorsal scpula nerve
Action of the levator scapulae
Scapula
elevation // rotation
What are the two heads of the pectoralis major
Clavicular head
Sternocostal head
What is the origin of the clavicular head of the pectoralis major
Anterior surface of the medial half of the clavicle
What is the origin of the sternocostal head of the pectoralis major
Anterior surface of the sternum
Superior six costal cartilages
Aponeurosis of the external obliques
What is the insertion of the pectoralis major
Lateral lip of the bicipital groove of the humerus
What is the innervation of the pectoralis major
Lateral and median pectoral nerve
What is the action of the clavicular head of the pectoralis major
Flexion of the humerus
What is the action of the sternocostal head of the pectoralis major
Adducts the humerus
What is the action of the whole pectoralis major
Adducts and medially rotates the humerus
Draws scapula anteriorly and inferiorly
What is the origin of the pectoralis minor
Ribs 3 to 5
What is the insertion of the pectoralis minor
Medial border and superior surface of the coracoid process of the scapula
What is the innervation of the pectoralis minor
Medial and lateral pectoral nerve
What is the action of the pectoralis minor
Stabilises the scapula
What is the origin of the subscapularis
Subscapular fossa
What is the innsertion of the subscapularis
Lesser tubercles of the humerus
What is the innervation of the subscapularis
Subscapular nerve (upper and lower)
What is the action of the subscapularis
Humerus - internal rotation // adduction
Stabilisation of the shoulder
What is the origin of the supraspinatus
Supraspinatus fossa of the scapula
What is the insertion of the supraspinatus
Superior facet of the greater tubercle of the humerus
What is the innervation of the supraspinatus
Suprascapular nerve
What is the action of the supraspinatus
Abduction of the arm
Stabilises the shoulder
What is the origin of the infraspinatus
Infraspinatus fossa of the scapula
What is the insertion of the infraspinatus
Middle facet of the greater tubercle of the humerus
What is the innervation of the infraspinatus
Suprascapular nerve
What is the action of the infraspinatus
Lateral rotation of the arm -
Stabilises the shoulder
What is the origin of the teres minor
Lateral border of the scapula
What is insertion of the teres minor
Inferior facet of the greater tubercles of the humerus
What is the innervation of the teres minor
Axillary nerve
What is the action of the axillary nerve
Lateral rotation of the arm
Stabilises the shoulder
Is biceps brachii a flexor or extensor
Is biceps brachii found on the anterior or posterior
Flexor so anterior
Origin of the short head of biceps brachii
Coracoid process of the scapula
Origin of the long head of biceps brachii
Supraglenoid tubercle
Insertion of biceps brachii
Radial tuberosity and bicipital aponeurosis into deep fascia on the medial part of the forearm
Innervation of biceps brachii
Musculocutaneous nerve
Action of biceps brachii
ELBOW - flexion
SHOULDER - flexion/abduction
RADIAL ULNAR JOINT - supination
Origin of the coracobrachialis
Coracoid process
Insertion of the coracobrachialis
Anteromedial surface of the humerus distal to the crest of the lesser tubercle
Innervation of the coracobrachialis
Musculocutaneous nerve
Action of the coracobrachialis
Arm at the glenohumeral joint
Adduction and flexion
Origin of the brachialis
Anterior surface of the humerus
Insertion of the brachialis
Coronoid process and tuberosity of the ulnar
Innervation of the brachialis
Musculocutaneous and radial nerves
Action of the brachialis
Flexion at the elbow
Origin of the long head of triceps
Infraglenoid tubercle of the scapula
Origin of the lateral head of triceps
Above the radial groove
Origin of the medial head of triceps
Below the radial groove
What is the radial groove
Where the radial nerve runs along the humerus
What is the insertion of the triceps
Olecranon process of the ulnar
Innervation of the triceps
Radial and axillary nerve
Action of triceps
FOREARM - Extension
ARM - Adducts
SHOULDER - Extends