Breast Flashcards

1
Q

What muscles are found in the breast area?

A

Pectoralis Major
Deltoid
Pectoralis Minor
Subclavius

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2
Q

Innervation of pectoralis major

A

medial and lateral pectoral nerve

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3
Q

Insertion of pectoralis minor

A

Coracoid process and greater tubercle of the humerus

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4
Q

What are the origins of pectoralis major?

A

clavicular and sternal head
inter-tubercular groove of the humerus
anterior layer of rectus sheath
costal cartilage 2-6

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5
Q

Origin of pectoralis minor

A

rib 3-5

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6
Q

Insertion of pectoralis minor

A

coracoid process of the scapula

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7
Q

Innervation of pectoralis minor

A

medial pectoral nerve

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8
Q

What does the lateral pectoral nerve innervate?

A

Pectoralis major and deltoid

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9
Q

What does the medial pectoral nerve innervate?

A

Pectoralis major, minor and deltoid

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10
Q

Innervation of subclavius muscle

A

subclavian nerve

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11
Q

Origin and insertion of subclavius

A

Origin - 1st rib

insertion - lower surface of the clavicle

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12
Q

What movements are the pectoralis major responsible for?

A

flexion
adduction
Internal rotation of humerus

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13
Q

What movements are the pectoralis minor responsible for?

A

adduction

rotation of scapula

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14
Q

What is the function of the subclavius muscle?

A

Stabilisation of the clavicle

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