Muscles unit 1 Flashcards
Supraspinatus innervation
Suprascapular nerve
Supraspinatus action
Extend the shoulder
Infraspinatus innervation
Suprascapular nerve
Infraspinatus action
Abduct the limb
Subscapularis innervation
Subscapular nerve
Axillary nerve
Subscapularis action
Adduct the limb
Subclavius innervation
Pectoral nerve
Subclavius action
Adduct the limb (and retract limb)
Descending pectoral innervation
Pectoral nerve
Descending pectoral action
Adduct the limb (and advance limb)
Transverse pectoral innervation
Pectoral nerve
Transverse pectoral action
Adduct the limb
Deep pectoral innervation
Pectoral nerve
Deep pectoral action
Adduct the limb (and retract limb)
Deltoideus innervation
Axillary nerve
Deltoideus action
Flex the shoulder (and abduct the limb)
Teres major innervation
Axillary nerve
Teres major action
Flex the shoulder
Teres minor innervation
Axillary nerve
Teres minor action
Flex the shoulder
Biceps brachii innervation
Musculocutaneous nerve
Biceps brachii action
Flex elbow (and extend the shoulder and the carpus)
Brachialis innervation
Musculocutaneous nerve
Brachialis action
Flex elbow
Coracobrachialis innervation
Musculocutaneous nerve
Coracobrachialis action
Flex the shoulder
Flexor carpi radialis innervation
Median nerve
Flexor carpi radialis action
Flex carpus (and extend elbow)
Deep digital flexor innervation
Median nerve and Ulnar nerve
Deep digital flexor action
Flex carpus and digits (and extend the elbow)
Superficial digital flexor innervation
Median nerve and Ulnar nerve
Superficial digital flexor action
Flex carpus and digits (and extend the elbow)
Pronator teres innervation (bovine only)
Median nerve
Pronator teres action (bovine only)
May slightly flex the elbow.
Flexor carpi ulnaris innervation
Ulnar nerve
Flexor carpi ulnaris action
Flex the carpus and extend the elbow
Triceps brachii innervation
Radial nerve
Triceps brachii action
Extend the elbow (and long head flexes the shoulder)
Tensor fasciae antebrachii innervation
Radial nerve
Tensor fasciae antebrachii action
Extend the elbow
Anaconeus innervation
Radial nerve
Anaconeus action
Extend the elbow
Extensor carpi radialis innervation
Radial nerve
Extensor carpi radialis action
Extend the carpus (and flex the elbow)
Common digital extensor innervation
Radial nerve
Common digital extensor action
Extend the carpus and digits (and flex the elbow)
Medial digital extensor innervation (Bovine only)
Radial nerve
Medial digital extensor action
Extend the carpus and medial digit
Lateral digital extensor innervation
Radial nerve
Lateral digital extensor action
Extend the carpus and (lateral) digit
Ulnaris lateralis innervation
Radial nerve
Ulnaris lateralis action
Flex carpus (and extend the elbow)
Extensor carpi obliquus innervation
Radial nerve
Extensor carpi obliquus action
Extend the carpus
Brachiocephalicus innervation
Accessory nerve
Cervical spinal nerves
Axillary nerve (Cleidobrachialis)
Brachiocephalicus action
Extend or turn head and neck
Draw limb cranially
Extend elbow and shoulder joint
Latissimus Dorsi Innervation
Thoracodorsal nerve
Latissimus Dorsi Action
Draw limb caudally
Flex shoulder
Omotransversarius Innervation
Accessory nerve
Omotransversarius Action
Advance limb
Flex neck laterally
Trapezius innervation
Accessory nerve
Trapezius action
Elevate scapula
Draw scapula dorsally (and cranially for cervicis, caudally for thoracis)
Rhomboideus innervation
Cervical and thoracic spinal nerves
Rhomboideus action
Elevate neck
Draw scapula dorsally (and cranially for cervicis, caudally for thoracis)
Serratus ventralis innervation
Cervical and thoracic spinal nerves
Serratus ventralis action
Support the trunk
Depress the scapula
Supraspinatus attachments
Supraspinous fossa
Greater and lesser tubercles of the humerus
Infraspinatus attachments
Infraspinous fossa
Greater tubercle of the humerus
Subscapularis attachments
Subscapular fossa
Lesser tubercle of the humerus
Deltoideus attachments
Spine of the scapula (and acromion in the bovine)
Deltoid tuberosity
Teres minor attachments
Infraspinous fossa
Deltoid and teres minor tuberosities
Teres major attachments
Caudal border of scapula
Teres major tuberosity
Coracobrachialis attachments
Coracoid process of scapula
Cranial humerus
Biceps brachii attachments
Supraglenoid tubercle Radial tuberosity (and tendon of extensor carpi radialis on the equine)
Brachialis attachments
Brachialis groove of humerus
Proxomedial radius
Tensor fasciae antebrachii attachments
Latissimus dorsi and caudal border of scapula
Olecranon and antebrachial fascia
Triceps brachii attachments
Long head: Caudal border of the scapula
Lateral head: Lateral surface of the humerus
Medial head: Medial surface of the humerus
Olecranon
Extensor carpi radialis attachments
Lateral epicondyle of the humerus
Metacarpal tuberosity
Common digital extensor attachments
Lateral epicondyle of the humerus (and lateral tuberosity of the radius, lateral surface of the ulna)
Equine: Extensor process of the 3rd phalanx or Bovine: 3rd and 4th phalanges
Lateral digital extensor attachments
Lateral tuberosity of the radius, lateral collateral ligament of the elbow joint, and body of the ulna
Equine: Dorsal aspect, proximal end of the 1st phalanx
Bovine: Proximal extremity of 2nd phalanx of digit 4
Medial digital extensor attachments (bovine only)
Radial fossa and lateral epicondyle of the humerus
Proximal extremity of the 2nd phalanx of digit 3
Extensor carpi obliquus attachments
Cranial surface of the radius
Equine: Proximal end of 2nd metacarpal bone
Bovine: Mediopalmar part of proximal extremity of large metacarpal bone.
Ulnaris lateralis attachments
Lateral epicondyle of the humerus
Accessory carpal bone and proximal extremity of the 4th metacarpal bone.
Flexor carpi ulnaris attachments
Medial epicondyle of the humerus
Accessory carpal bone
Flexor carpi radialis attachments
Medial epicondyle of the humerus
Equine: Second carpal bone
Bovine: Mediopalmar part of proximal extremity of the large metacarpal bone
Superficial digital flexor attachments
Medial epicondyle of the humerus and caudal surface of the radius
Equine: Proximal extremity of 2nd phalanx, distal extremity of 1st phalanx.
Bovine: Proximal extremity of 2nd phalanx of digits 3 and 4
Deep digital flexor attachments
Medial epicondyle of humerus, olecranon, and caudal surface of the radius
Equine: Flexor surface of the 3rd phalanx
Bovine: Flexor tubercle of 3rd phalanx on digits 3 and 4
Brachiocephalicus attachments
Clavicular intersection
Mastoid process/nuchal crest/wing of atlas and vertC2-C3
Deltoid tuberosity of the humerus
Latissimus dorsi attachments
Teres major tuberosity
Spinous processes of lumbar and thoracic vertebrae
Omotransversarius attachments
Atlas
Spine of the scapula
Trapezius attachments
Spine of the scapula via aponeurosis
Median raphe of the neck and the supraspinous ligament
Rhomboideus attachments
Medial surface of the dorsal scapula
Dorsoscapular ligament
Serratus ventralis attachments
Serrated face of the scapula
Transverse processes of the cervical and thoracic vertebrae
Descending pectoral attachments
Sternebrae
Humerus
Transverse pectoral attachments
Sternebrae
Proximal third of radius
Subclavius attachments
Sternebrae
Supraspinatus muscle
Deep pectoral attachments
Sternebrae
Humerus/tendon of the coracobrachialis
Interosseous muscle attachments (Bovine) or Suspensory Ligament (Equine)
Palmar surface of 3rd metacarpal bone
Equine: Abaxial surface of proximal sesamoids and extensor branches to the common digital extensor muscle.
Bovine: Abaxial surface of superficial proximal sesamoids and axial surface of deep proximal sesamoids.
