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Anatomy 1 > Muscles > Flashcards

Muscles Flashcards

1
Q

Superficial pectoral

A

Origin: sternum

Termination: crest of greater tubercle and cranial humeral border

Action: adduct the thoracic limb

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2
Q

Deep pectoral

A

Origin: sternum

Termination: greater and lesser tubercles of humerus

Action: adduct thoracic limb and pull it caudally

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3
Q

Brachiocephalicus

A

Origin: clavicular insertion

Termination:

cleidobrachialis- distal cranial humerus

mastoid part: mastoid process of temporal bone

cervical part: dorsal midline of neck

Action: pull thoracic limb cranially (and/or) depress and pull head and neck laterally

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4
Q

Omotransversarius

A

Origin: wing of the atlas

Termination: distal spine of the scapula

Action: pull thoracic limb cranially (and/or) depress and pull head and neck laterally

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5
Q

Trapezius

A

Origin:

  • cervical part: dorsal neck
  • thoracic part: dorsal thorax

Termination: spine of the scapula

Action: elevate the thoracic limb

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6
Q

Rhomboideus

A

Origin:

rhomboideus thoracis: dorsal thorax

rhomboideus cervivis: dorsal neck

rhomboideus capitis: occipital bone

Termination: dorsal border of scapula and/or scapular cartilage

Action: elevate the thoracic limb

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7
Q

Serratus ventralis

A

Origin:

-serratus ventralis cervicis: cervical vertebrae

serratus ventralis thoracis: thoracic wall (ribs)

Termination: serrated face of scapula

Action: support and/or elevate the trunk

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8
Q

Latissimus dorsi

A

Origin: thoracolumbar fascia

Termination: teres major tuberosity

Action: draw the thoracic limb caudally, flex or extend the humeral joint

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9
Q

Sternocephalicus

A

Origin: sternum

Termination:

-mastoid part: mastoid process of temporal bone

occipital part: occipital bone

Action: depress head and neck

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10
Q

Sternohyoideus

A

Origin: sternum

Termination: basihyoid bone

Action: pull tongue and larynx caudally

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11
Q

Sternothyroideus

A

Origin: cranial aspect of sternum or ribcage

Termination: thyroid cartilage

Action: pull tongue and larynx caudally

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12
Q

Deltoideus

A

Origin: spine of scapula and acromion

Termination: deltoid tuberosity of humerus

Action: flex the humeral joint

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13
Q

Supraspinatus

A

Origin: supraspinous fossa of the scapula

Termination: greater tubercle of the humerus

Action: extend the humeral joint

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14
Q

Infraspinatus

A

Origin: infraspinous fossa of the scapula

Termination: greater tubercle of the humerus

Action: flex the humeral joint; abduct the limb at humeral joint

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15
Q

Teres minor

A

Origin: caudal border of the scapula

Termination:teres minor tuberosity of humerus

Action: to flex humeral joint

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16
Q

Subscapularis

A

Origin: subscapular fossa of scapula

Termination:lesser tubercle of humerus

Action: adduct limb at humeral joint

17
Q

Teres major

A

Origin: caudal border of scapula

Termination: teres major tuberosity of humerus

Action: flex the humeral joint

18
Q

Coracobrachialis

A

Origin: coracoid process of scapula

Termination: crest of the lesser tubercle of the humerus

Action: adduct limb at shoulder

19
Q

Biceps brachii

A

Origin: supraglenoid tubercle

Termination: radial and ulnar tuberosities

Action: flex the cubital joint and extend the humeral joint

20
Q

Brachialis

A

Origin: brachial groove of humerus

Termination: proximal radius and/or ulna

Action: flex the cubital joint

21
Q

Triceps brachii

A

Origin: caudal border of scapula; proximal humerus

Termination: tuber olecrani

Action: extend the cubital joit; flex the humeral joint

22
Q

Anconeus

A

Origin: caudal aspect of the distal humerus

Termination: tuber olecrani

Action: extend the cubital joint

23
Q

Tensor fasciae antebrachii

A

Origin: latissimus dorsi and fascia on caudal border of scapula

Termination: tuber olecrani

Action: extend cubital joint (and tense the deep antebrachial fascia

Anatomy 1 (8 decks)

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