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Anatomy 3401 > Anterior TA muscles > Flashcards

Anterior TA muscles Flashcards

1
Q

TA stands for

A

Thoracoappendicular

Thorax + Upper limb
Origin —> Insertion

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2
Q

4 Ant. TA muscles

A

Pectoralis Major
Pectoralis Minor
Serratus Anterior
Subclavius

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3
Q

Pec Mj origin

A

*Medial third of clavicle
Manubrium (top of the sternum)
Body of sternum
Costal cartilages ribs 1-6

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4
Q

Pectoralis Major insertion

A

*Lateral lip of the inter tubercular groove of the humerus

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5
Q

Pectoralis Major Action

A

*Adduction, medial rotation and flexion of the arm

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6
Q

Pectoralis Major innervation

A

*medial and lateral pectoral nerves

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7
Q

Pectoralis Minor origin

A

*ribs 3-5

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8
Q

Pectoralis Minor insertion

A

coracoid process of the scapula

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9
Q

Pectoralis Minor action

A

stability of scapula

scapula down and forward

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10
Q

Pectoralis Minor innervation

A

medial pectoral nerve

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11
Q

Serratus Anterior origin

A

Ribs 2-8

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12
Q

Serratus Anterior Insertion

A

Medial margin (border) of costal (front) surface of the scapula

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13
Q

Serratus Anterior action

A

keep scapula against thorax

upward rotation of the scapula

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14
Q

Serratus Anterior innervation

A

Long thoracic nerve

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15
Q

Serratus Anterior arterial supply

A

lateral thoracic artery

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16
Q

Subclavius origin

A

1st rib

17
Q

Subclavius insertion

A

Inferior aspect of clavicle

18
Q

Subclavius action

A

depress clavicle

stabilize joint

19
Q

Subclavius innervation

A

Nerve to subclavius (subclavius nerve)

20
Q

Subclavius arterial supply

A

clavicular branch of the thoracoacromial artery

21
Q

Pectoralis Major Arterial Supply

A

Thoracoacromial Artery

22
Q

Pectoralis Minor Arterial Supply

A

Thoracoacromial Artery

23
Q

Serratus Anterior Arterial Supply

A

Lateral Thoracic Artery

Anatomy 3401 (17 decks)

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