Download Gluteal Region: 4 muscles

Shoulder Muscles: 5 muscles
Muscle
Trapezius
Deltoid
Levator
scapulae
Rhomboid
minor
Rhomboid
major
Origin
Superior nuchal line; External
occipital protuberance; Ligamentum
nuchae; Spinous processes of C7-T12
Inferior edge of spine of scapula
Lateral acromion
Lateral 1/3rd of clavicle
Transverse processes C1-C4
Insertion
Superior edge of crest of spine
of scapula; Acromion
Later 1/3rd of clavicle
Deltoid tuberosity of humerus
Lower ligamentum nuchae
Spinous processes of C7-T1
Spinous processes T2-T5
Supraspinous ligaments
Posterior surface of medial
border of scapula
Posterior surface of medial
border of scapula
Posterior surface of medial
border of scapula
Function
Elevates, rotates,
retracts, depresses
scapula .. (90-180)
Major abductor of arm
(15-90)
Flexes and extends arm
Elevates scapula
Elevates and retracts
scapula
Elevates and retracts
scapula
Innervation
Accessory nerve CN XI
Sensory anterior rami C3-C4
Blood Supply
Transverse cervical
artery (br of subclavian)
Axillary nerve C5-C6
Deltoid (br of
thoracoacromial)
Doral scapular nerve (C4-C5)
Branches from anterior rami
of C3-C4
Doral scapular nerve (C4-C5)
Transverse cervical
artery
Dorsal scapular nerve (C4C5)
Transverse
cervical/dorsal scapular
Transverse
cervical/dorsal scapular
Posterior Scapular Region Muscles: 5 muscles
Muscle
Supraspinatus
Origin
Medial 2/3rds of suprspinous fossa
Deep fascia the covers muscle
Medial 2/3rds of infraspinous fossa
Deep fascia the covers muscle
Posterior scapula adjacent to lateral
border
Insertion
Superior facet of greater
tubercle of humerus
Middle facet of greater
tubercle of humerus
Inferior facet of greater
tubercle of humerus
Function
Rotator cuff muscle
Abducts arm to 15
Rotator cuff muscle
Laterally rotates arm
Rotator cuff muscle
Laterally rotates arm
Innervation
Suprascaular nerve (C5-C6)
Teres major
Posterior inferior angle of scapula
Medial lip of intertubercular
sulcus on anterior humerus
Medially rotates arm
Extends arm
Inferior subscapular nerve
(C5-C7)
Long head
triceps brachii
Infraglenoid tubercle on scapula
Olecranon process of ulna
Extends forearm
Adductor, extensor of arm
Radial nerve (C6-C8)
Infraspinatus
Teres minor
Suprascaular nerve (C5-C6)
Axillary nerve (C5-C6)
Blood Supply
Suprascapular artery
(br of thyrocervical trunk)
Suprascapular artery
(br of thyrocervical trunk)
Subscapular artery
Circumflex scapular (br of
subscapular)
Subscapular artery
Circumflex scapular (br of
subscapular)
Deep brachial (br of
brachial)
Anterior Wall of Axilla Muscles: 3 muscles
Muscle
Pectoralis
major
Subclavius
Pectoralis
minor
Origin
Clavicular head
Sternocostal head: first 7 ribs
Aponeurosis of external oblique
First rib at rib/cartilage junction
Ribs 3-5
Insertion
Lateral lip of intertubercular
sulcus of humerus
Function
Flexion, adduction,
medial rotation of arm
Middle 1/3rd of clavicle
Coracoid process of scapula
Pulls shoulder down
Pulls shoulder down
Protracts scapula
Innervation
Clavicular head: Medial/Lateral
pectoral nerves (C5-C6)
Sternocostal head: C6-T1
Subclavius (C5-C6)
Medial pectoral nerve (C6-C8)
Blood Supply
Pectoral branch of
thoracoacromial artery
Pectoral branch of
thoracoacromial artery
Medial Wall of Axilla Muscles : 1 muscle
Muscle
Serratus
anterior
Origin
Lateral surfaces of ribs 1-9
Deep fascia over intercostal spces
Insertion
Costal surface of medial
border of scapula
Function
Protract and rotate scapula (90-180)
Keeps scapula close to thoracic wall
Innervation
Long thoracic nerve
(C5-C7)
Blood Supply
Lateral thoracic (branch of
axillary)
Lateral and Posterior Wall of Axilla Muscles : 4 muscles
Muscle
Subscapularis
Origin
Subscapular fossa
Insertion
Lesser tubercle of humerus
Latissimus
dorsi
Spinous process of lower 6
Intertubercular sulcus
thoracic vertebrae; Thoracolumbar
fascia; iliac crest; Lower 4 ribs
Also part of lateral/posterior wall of axilla: terres major and long head of triceps brachii
Function
Rotator cuff muscle
Medially rotates arm
Adducts, medially rotates,
and extends arm
Innervation
Upper/Lower subscapular
nerves (C5-C7)
Thoracodorsal nerve (C6C8)
Blood Supply
Subscapular (branch of
axillary)
Thoracodorsal (inferior
continuation of
subscapular artery)
Anterior Arm Muscles : 3 muscles
Muscle
Biceps brachii
Coracobrachialis
Brachialis
Origin
Long head: Supraglenoid tubercle of scapula
Short head: Coracoid process
Coracoid process
Anterior aspect of humerus
Insertion
Tuberosity of radius
Medial humerus
Tuberosity of ulna
Function
Flexes and supinates forearm
Flexes arm
Flexes arm
Flexes forearm
Innervation
Musculocutaneous nerve
(C5-C6)
Musculocutaneous nerve
Musculocutaneous nerve and
small contribution of radial n.
Blood Supply
Brachial artery
Brachial artery
Brachial a. (also
radial recurrent)
Posterior Arm Muscle
Muscle
Triceps brachii
Origin
Long head: Infraglenoid tubercle of scapula
Medial head: Posterior humerus
Lateral head: Posterior humerus
Insertion
Olecranon
Function
Extends forearm
Long head: Extends/adducts arm
Innervation
Radial nerve
Blood Supply
Deep brachial artery
Superficial Anterior Forearm Muscles: 4 muscles (medial to lateral: CPCP)
Muscle
Flexor carpi ulnaris
Palmaris longus
Flexor carpi radialis
Pronator teres
Origin
Humeral head: Medial epicondyle
Ulnar head: Olecranon & posterior ulna
Medial epicondyle of humerus
Insertion
Pisiform bone; Metacarpal V via
pisohamate and pisomaetacarpal ligaments
Palmar aponeurosis of hand
Function
Flexes & adducts hand
Innervation
Ulnar nerve
Blood Supply
Ulnar artery
Flexes hand; Opposes
shearing forces on skin
in gripping
Flexes & abducts wrist
Pronation
Median nerve
Ulnar artery
Medial epicondyle
Humeral head: Medial epicondyle
Ulnar head: Coronoid process
Metacarpals 2 & 3
Lateral mid-radius
Median nerve
Median nerve
Ulnar artery
Ulnar artery
Function
Flexes hand; Flexes proximal
interphalangeal and
metacarpophalangeal joints
Innervation
Median nerve
Blood Supply
Ulnar artery
Intermediate Anterior Forearm Muscle: 1 muscle
Muscle
Flexor digitorum
superficialis
Origin
Humero-ulnar head: medial epicondyle and
coronoid process
Radial head: Oblique line of radius
Insertion
Middle phalange of lateral four
fingers via tendons
Deep Anterior Forearm Muscles: 3 muscles (DPP)
Muscle
Flexor digitorum
profundus
Origin
Anterior and medial ulna
Interosseous membrane
Flexor pollicis
longus
Pronator
quadratus
Radius and interosseous
membrane
Ulna
Insertion
Distal phalanges of
lateral four fingers via
tendons
Base of distal phalanx
of thumb
Distal radius
Function
Flexes hand; Flexes proximal and distal
interphalangeal and
metacarpophalangeal joints
Flexes interphalangeal and
metacarpophalangeal joints of thumb
Pronation
Innervation
Lateral half: median nerve
Medial half: ulnar nerve
Blood Supply
Anterior interosseous
(br of ulnar artery)
Median nerve
Posterior interosseous
(br of ulnar artery)
Anterior interosseous
(br of ulnar artery)
Median nerve
Lateral Posterior Forearm Muscles: 2 muscles
Muscle
Brachioradialis
Extensor carpi
radialis longus
Origin
Lateral supraepicondylar ridge
Lateral supraepicondylar ridge
Lateral epicondyle
Insertion
Lateral distal radius
Base of metacarpal II
Function
Flexes elbow
Extends and abducts wrist
Innervation
Radial nerve
Radial nerve
Blood Supply
Radial recurrent
Radial
Origin
Lateral epicondyle
Insertion
Base of metacarpals II and III
Function
Extends and abducts wrist
Innervation
Deep branch of radial nerve
Blood Supply
Radial
Lateral epicondyle
Extensor hoods on middle and
distal phalanges of 4 fingers
Dorsal hood of little finger
Extends lateral four
fingers
Extends little finger
Posterior interosseous (from
deep branch of radial)
Posterior interosseous
Interosseous recurrent &
posterior interosseous
Interosseous recurrent
Tubercle on medial base of
metacarpal V
Olecranon; Proximal ulna
Extends and adducts wrist
Posterior interosseous
Ulnar
Abducts ulna in pronation
Radial nerve (via branch to
medial head of triceps brachii)
Interosseous recurrent
Superficial Posterior Forearm Muscles: 5 muscles
Muscle
Extensor carpi
radialis brevis
Extensor
digitorum
Extensor digiti
minimi
Extensor carpi
ulnaris
Anconeus
Lateral epicondyl
Lateral epicondyle
Lateral epicondyle
Deep Posterior Forearm Muscles: 5 muscles
Muscle
Supinator
Abductor
pollicis longus
Extensor pollicis
brevis
Extensor pollicis
longis
Extensor indicis
Origin
Superficial part: Lateral epicondyle
Deep part: Supinator crest of ulna
Ulna and radius (distal to supinator)
and interosseous membrane
Radius (distal to abductor pollicus
longus) & interosseous membrane
Ulna (distal to abductor pollicis
longus) & interosseous membrane
Ulna & interosseous membrane
Insertion
Lateral radius
Function
Supination
Lateral base of metacarpal I
Abducts carpometacarpal of
thumb
Extends metacarpophalangeal
of thumb
Extends interphalangeal of
thumb
Extends index finger
Base of proximal phalanx of
thumb
Base of distal phalanx of
thumb
Extensor hood of index finger
Innervation
Posterior
interosseus
Posterior
interosseus
Posterior
interosseous
Posterior
interosseous
Posterior
interosseus
Blood Supply
Interosseous recurrent (br of
posterior interosseous)
Posterior interosseous
(branch of ulnar artery)
Posterior interosseous
(branch of ulnar artery)
Posterior interosseous
(branch of ulnar artery)
Posterior interosseous
(branch of ulnar artery)
Bones of the Wrist: 8 bones (Lateral to Medial)
Proximal row: Scaphoid, Lunate, Triquetrum, Pisiform (Mnemonic: Scaffolding under the MOON? TRY Pissing…ok, it’s lame, but it works for me)
Distal row: Trapezium, Trapezoid, Capitate, Hamate (Mnemonic: to Trap a Trapezoid, just de-Capitate a Ham…again, lame)
Carpal Arch: Trapezium, Trapezoid, CArpitate, Hamate, Triquetrum, Pisiform
Intrinsic Muscles of the Hand: 5+3+3 muscles
Muscle
Palmaris Brevis
Adductor pollicis
Lumbricals (4
muscles)
Dorsal interossei (4
muscles)
Origin
Palmar aponeurosis
Flexor retinaculum
Transverse head: Metacarpal III
Oblique head: Capitate; Base of
metacarpals II and III
Tendons of flexor digitorum
profundus
Insertion
Dermis of skin on medial hand
Function
Improve grip
Base of proximal phalanx and
extensor hood of thumb
Adducts thumb
Extensor hoods of four lateral
fingers
Sides of metacarpals
Extensor hood; Base of
proximal phalanges of 3 fingers
Flex metacarpophalangeal
joints; Extend
interphalangeal joints
Abduct 4 fingers at
metacarpophalangeal joints
Medial 2: Deep branch
of ulnar
Lateral 2: Median n.
Deep branch of ulnar
nerve
Extensor hoods of 4 fingers
Proximal phalanx of thumb
Adduct all fingers at
metacarpophlangeal joints
Deep branch of ulnar
nerve
Laterally rotates metacarpal
V
Abducts little finger at
metacarpophalangeal joint
Flexes little finger at
metacarpophalangeal joint
Deep branch of ulnar
nerve
Deep branch of ulnar
nerve
Deep branch of ulnar
nerve
Ulnar artery
Medially rotates and flexes
thumb
Abducts thumb at
metacarpophalangeal joint
Flexes little finger at
metacarpophlangeal joint
Recurrent branch of
median nerve
Recurrent branch of
median nerve
Recurrent branch of
median nerve
Radial artery (superficial
palmar br)
Radial artery (superficial
palmar br)
Radial artery
(superficial palmar br)
Palmar interossei (4 Sides of metacarpals
muscles)
Hypothenar Muscles
Opponens digiti
Hook of hamate
minimi
Flexor retinaculum
Abductor digiti
Pisiform; Pisohamate ligament
minimi
Tendon of flexor carpi ulnaris
Flexor digiti
Hook of hamate
minimi brevis
Flexor retinaculum
Thenar muscles
Opponens
Tubercle of trapezium
metacarpal pollicis
Flexor retinaculum
Abductor pollicis
Tubercles of trapezium and
brevis
scaphoid
Flexor pollicis
Tubercle of trapezium
brevis
Flexor retinaculum
Medial metacarpal V
Proximal phalanx of little
finger
Proximal phalanx of little
finger
Lateral metacarpal I
Extensor hood of thumb
Proximal phalanx of thumb
Lateral proximal phalanx of
thumb
Innervation
Superficial branch of
ulnar nerve
Deep branch of ulnar
nerve
Blood Supply
Ulnar artery
Deep palmar arterial
arch (br of radial a.)
Superficial palmar
arterial arch (br of ulnar
a.)
Dorsal and palmar
metacarpal a. (br of deep
palmar arch of radial a.)
Palmar metacarpal artery
Ulnar artery
Ulnar artery