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Anatomy II > Thoracic Limb Muscles > Flashcards

Thoracic Limb Muscles Flashcards

1
Q

what is the innervation and action of the trapezius (cervical and thoracic)?

A

accessory and dorsal spinal nerves
elevate shoulder, pull limb cranial for cervical, caudal for thoracic, dorsal flexion neck

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2
Q

what is the innervation and action of the rhomboideus (cervical and thoracic)?

A

dorsal spinal nerves
pull scapula cranial and dorsal, dorsal flexion neck
pig has capitis part too

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3
Q

what is the innervation and action of the lattissimus dorsi?

A

thoracodorsal
pull humerus caudal/dorsal, flex shoulder, draw trunk cranially

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4
Q

what is the innervation and action of the brachiocephalicus (occiptal and mastoid)?

A

accessory, axillary, and ventral branches
limb cranially, extend shoulder joint, dorsal flexion neck, extension head, incline head and neck

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5
Q

what is the innervation and action of the subclavius?

A

cranial pectoral
suspend trunk and stabilize shoulder joint

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6
Q

what is the innervation and action of the descending pectoral?

A

cranial pectoral
adduct limb, advance thorax

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7
Q

what is the innervation and action of the transverse pectoral?

A

cranial pectoral
adduct limb, tense forearm fascia

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8
Q

what is the innervation and action of the ascending pectoral?

A

caudal pectoral
adduct limb and retract, draw trunk cranially

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9
Q

what is the innervation and action of the omotransversarius?

A

accessory
pull limb cranially, extend shoulder, neck laterally and ventrally

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10
Q

what is the innervation and action of the serratus ventralis (cervicis and thoracis)?

A

accessory, C: dorsal spinal branches
suspend trunk, dorsal flexion neck, support in inspiration

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11
Q

what is the innervation and action of the deltoideus (scapular and acromial)?

A

axillary
flex and abduct shoulder

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12
Q

what is the innervation and action of the supraspinatus?

A

suprascapular
extend shoulder

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13
Q

what is the innervation and action of the infraspinatus?

A

suprascapular
abduct and rotate shoulder and extend

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14
Q

what is the innervation and action of the subscapularis?

A

subscapular
adduct limb

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15
Q

what is the innervation and action of the teres major?

A

axillary
flex shoulder and adduct limb

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16
Q

what is the innervation and action of the teres minor?

A

axillary
flex shoulder and abduct limb

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17
Q

what is the innervation and action of the articularis humeri?

A

axillary
flex shoulder

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18
Q

what is the innervation and action of the biceps brachii?

A

musculocutaneous
flex elbow and extend shoulder

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19
Q

what is the innervation and action of the brachialis?

A

musculocutaneous
flex elbow

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20
Q

what is the innervation and action of the coracobrachialis?

A

musculocutaneous
adduct and flex shoulder

21
Q

what is the innervation and action of the triceps brachii (long, medial, lateral)?

A

radial
extend elbow and long flexes shoulder

22
Q

what is the innervation and action of the anconeus?

A

radial
elbow extension, avoid joint capsule being pinched

23
Q

what is the innervation and action of the tensor fasciae antebrachii?

A

radial
extend elbow, tense fascia and flex shoulder

24
Q

what is the innervation and action of the extensor carpi radialis?

A

radial
extend carpal joint, flex elbow

25
Q

what is the innervation and action of the common digital extensor?

A

radial
extend carpal, metacarpophalangeal, proximal and distal intercarpophalangeal joints, flex elbow

26
Q

what is the innervation and action of the lateral digital extensor?

A

radial
extend carpal, metacarpophalangeal, proximal and distal interphalangeal joints

27
Q

what is the innervation and action of the ulnaris lateralis?

A

radial
flex carpal joint, extend elbow

28
Q

what is the innervation and action of the carpal oblique extensor?

A

radial
extend carpal joint

29
Q

what is the innervation and action of the flexor carpi radialis?

A

median
flex carpal joint, extend elbow

30
Q

what is the innervation and action of the flexor carpi ulnaris (humeral and ulnar)?

A

ulnar
flex carpal joint, humeral: extend elbow

31
Q

what is the innervation and action of the deep digital flexor (ulnar, humeral, radial)?

A

radial and humeral: median
ulnar: ulnar
flex carpal, metacarpophalangeal, proximal and distal interphalangeal joints, humeral: extend elbow

32
Q

what is the innervation and action of the superficial digital flexor (humeral and radial)?

A

ulnar
flex carpal, metacarpophalangeal, proximal and distal interphalangeal joints, extend elbow

33
Q

what are the attachments of the trapezius?

A

cervical: funicular part nuchal ligament
thoracic: supraspinatous ligament
spine scapula

34
Q

what are the attachments of the rhomboideus?

A

cervical: funicular part nuchal ligament
thoracic: spinous process
medial surface cartilage scapula

35
Q

what are the attachments of the lattissimus dorsi?

A

thoracolumbar fascia
teres major tuberosity

36
Q

what are the attachments of the subclavius?

A

sternum and first four costal cartilages
shoulder fascia, supraspinatous fascia, cranial border scapula

37
Q

what are the attachments of the deltoideus?

A

spine and caudal border scapula
deltoid tuberosity

38
Q

what are the attachments of the supraspinatous?

A

supraspinatous fossa
lesser and greater tubercles humerus

39
Q

what are the attachments of the infraspinatous?

A

infraspinatous fossa
greater tubercle humerus

40
Q

what are the attachments of the subscapularis?

A

subscapular fossa
lesser tubercle

41
Q

what are the attachments of the teres major?

A

caudal angle scapula
teres major tuberosity

42
Q

what are the attachments of the teres minor?

A

caudal border distal scapula
teres minor tuberosity

43
Q

what are the attachments of the articularis humeri?

A

proximal to glenoid cavity
neck humerus

44
Q

what are the attachments of the biceps brachii?

A

supraglenoid tubercle
lots of places

45
Q

what are the attachments of the brachialis?

A

neck humerus
medial radius and medial collateral ligament

46
Q

what are the attachments of the coracobrachialis?

A

coracoid process
proximal to teres major tuberosity

47
Q

what are the attachments of the tensor fasciae antebrachii?

A

tendon lattissimus dorsi
forearm fascia

48
Q

what is the proximal attachment of all of the carpal extensors except lateral digital extensor and carpal oblique extensor?

A

lateral epicondyle

Anatomy II (2 decks)

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