Bony landmarks of the scapula : superior angle
superior medial aspect
bony landmarks of the scapula: inferior angle
.most inferior point
.where vertebral and axillary borders meet
Bony landmarks of the scapula: vertebral border
medial border between superior and inferior angles
bony landmarks of the scapula: axillary border
lateral border between glenoid fossa and inferior angle
bony landmarks of the scapula: spine
projection on the posterior surface from vertebral border to acromion process
bony landmarks of the scapula: coracoid process
hook shaped projection on the anterior-superior surface
bony landmarks of the scapula: acromion process
lateral broad, flat end of the spine of the scapula
bony landmarks of the scapula: glenoid fossa
slightly concave surface at superior end of the axillary border
bony landmarks of the clavicle: sternal end
medial end that articulates with the sternum
bony landmarks of the clavicle: acromial end
lateral end that articulates with acromion process of the scap
bony landmarks of the clavicle: body
area between sternum and acromial ends
bony landmarks of the sternum: manubrium
superior portion of the sternum
bony landmarks of the sternum: body
longest portion in the middle of the sternum
bony landmarks of the sternum: xiphoid process
inferior portion of the sternum and smallest portion (triangular)
bony landmarks of the humerus(proximal) :head
convex proximal end that faces medially and slightly posteriorly
bony landmarks of the humerus(proximal): anatomical neck
circumferential groove between the head and the tubercle
bony landmarks of the humerus(proximal): greater tubercle
larger projection lateral to the head and lesser tubercle
bony landmarks of the humerus(proximal): lesser tubercle
smaller projection on anterior surface medial to greater tubercle
bony landmarks of the humerus(proximal): surgical neck
slightly constricted area just below the tubercles between the tubercles and the shaft
excessive scapular winging can be caused by weakness of this muscle.
serratus anterior
bony landmarks of the humerus (distal): spiral groove
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bony landmarks of the humerus(distal): trochlea
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bony landmarks of the humerus(distal): capitulum
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bony landmarks of the humerus(distal): medial epicondyle
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bony landmarks of the humerus(distal): lateral epicondyle
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bony landmarks of the humerus(distal):lateral supracondylar ridge
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bony landmarks of the humerus(distal): olecranon fossa
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ligaments of the elbow: medial collateral ligament
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ligaments of the elbow: lateral collateral ligament
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ligaments of the elbow: annular ligament
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brachialis muscle
O
Anterior surface of distal half of humerus
I
Ulnar tuberosity and coronoid process of ulna
A
Elbow flexion
N
Musculocutaneous nerve (C5, C6)
biceps brachii
O
Long head: supraglenoid tubercle of scapula
Short head: coracoid process of scapula
I
Radial tuberosity of radius
A
Shoulder flexion, elbow flexion, forearm supination
N
Musculocutaneous nerve (C5, C6)
brachioradialis
O
Lateral supracondylar ridge on the humerus
I
Distal lateral aspect of the radius proximal to the styloid process of the radius
A
Elbow flexion, forearm supination and pronation
N
Radial nerve (C5, C6)
triceps brachii
O
Long head: infraglenoid tubercle of scapula
Lateral head: inferior to greater tubercle on posterior humerus
Medial head: posterior surface of humerus
I
Olecranon process of ulna
A
Shoulder extension. Elbow extension.
N
Radial nerve (C6, C7, C8)
anconeus
O
Lateral epicondyle of humerus
I
Lateral and inferior to triceps on the olecranon process
Some fibers on annular ligament
A
Elbow extension
May retract joint capsule from impingement during elbow extension
N
Radial nerve (C6, C7, C8)
pronator teres muscle
O
Medial epicondyle of humerus and coronoid process of ulna
I
Lateral aspect of radius at its midpoint
A
Forearm pronation, elbow flexion
N
Median nerve (C6, C7)
supinator muscle
O
Lateral epicondyle of humerus and adjacent ulna
I
Anterior surface of the proximal radius
A
Forearm supination, elbow flexion
N
Radial nerve (C6)
pronator quadratus muscle
O
Anterior distal one-fourth of ulna
I
Anterior distal one-fourth of radius
A
Forearm pronation
Stabilizes distal radioulnar joint
N
Median nerve (C8, T1)
motions of the shoulder girdle:Elevation
scapula moves superiorly
motions of the shoulder girdle :Depression
scapula moves inferiorly
motions of the shoulder girdle: Protraction
scapula moves away from the vertebral column
motions of the shoulder girdle: Retraction
scapula moves toward the vertebral column
motions of the shoulder girdle: Upward rotation
Upward rotation
motions of the shoulder girdle: Downward rotation
rotation of the inferior angle medially and inferiorly
motions of the shoulder girdle: Scapular tilt
rotation of the inferior angle posteriorly
motions of the shoulder girdle: Scapular winging
movement of the medial border posteriorly
upper trapezius
O
External occipital protuberance, superior nuchal line, spinous processes of cervical vertebrae via nuchal ligament
I
Lateral third of clavicle, acromion process
A
Scapular elevation, upward rotation, retraction
Capital and cervical extension and lateral flexion when scapula is stabilized
N
Spinal accessory (cranial nerve XI), C3 and C4 sensory component
middle trapezius
O
Spinous processes of C7 through T3 via supraspinal ligament
I
Medial aspect of acromion and spine of scapula
A
Scapular retraction, upward rotation
N
Spinal accessory (cranial nerve XI), C3 and C4 sensory component
lower trapezius
O
Spinous processes of T4 through T12 via supraspinal ligament
I
Base of spine of the scapula
A
Scapular depression, upward rotation, retraction
N
Spinal accessory (cranial nerve XI), C3 and C4 sensory component
levator scapula
O
Transverse processes C1 through C4
I
Vertebral border of scapula between superior angle and spine of scapula
A
Scapular elevation, downward rotation
Lateral flexion of cervical spine when scapula is stabilized
N
Third and fourth cervical nerves and dorsal scapular nerve (C5)
rhomboid
O
Spinous processes of C7 through T5 via nuchal and supraspinal ligaments
I
Vertebral border of scapula between inferior angle and base of spine of scapula
A
Scapular retraction, elevation, and downward rotation
N
Dorsal scapular nerve (C5)
serratus anterior
O
Lateral surface of first (1st) through eighth (8th) ribs
I
Vertebral border of the scapula, anterior surface
A
Scapular protraction and upward rotation
Elevation of thoracic cage when shoulder girdle is stabilized
Accessory muscle of respiration (inhalation)
N
Long thoracic nerve (C5, C6, C7)
pectoralis minor
O
Anterior surface, third (3rd) through fifth (5th) ribs
I
Coracoid process of scapula
A
Scapular depression, protraction, downward rotation, tilt
Elevation of thoracic cage when shoulder girdle is stabilized
Accessory muscle of respiration (inhalation)
N
Medial pectoral nerve (C8, T1)
anterior deltoid
O
Anterior surface, third (3rd) through fifth (5th) ribs
I
Coracoid process of scapula
A
Scapular depression, protraction, downward rotation, tilt
Elevation of thoracic cage when shoulder girdle is stabilized
Accessory muscle of respiration (inhalation)
N
Medial pectoral nerve (C8, T1)
medial deltoid
O
Acromion process
I
Deltoid tuberosity
A
Shoulder abduction
Depression of the shoulder girdle when humerus is stabilized
N
Axillary nerve (C5, C6)
posterior deltoid
O
Spine of scapula
I
Deltoid tuberosity
A
Shoulder abduction, extension, lateral rotation, horizontal abduction
Depression of the shoulder girdle when humerus is stabilized
N
Axillary nerve (C5, C6)
coracobrachialis
O
Coracoid process of the scapula
I
Medial surface of the humerus near the midpoint
A
Shoulder flexion, adduction. Stabilizes shoulder.
N
Musculocutaneous nerve (C5, C6, C7)