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Anatomy (ME) > Pectorals Major + Minor > Flashcards

Pectorals Major + Minor Flashcards

1
Q

What are the origins of pectorals major?

A

Clavicle
Sternum
Costal Cartilages

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2
Q

Where is the insertion of pectorals major?

A

Humerus

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3
Q

What are the actions of pectorals major

A

Medial rotation

adduction

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4
Q

What are the 4 vertical lines of pectorals major?

A

mid clavicular
anterior axillary
mid axillary
posterior axillary

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5
Q

What nerves innervate pec major?

A

Medial and lateral pectoral nerves

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6
Q

From what ribs does the pec minor muscle origins from?

A

Ribs 3-5

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7
Q

Where is the insertion of pec minor?

A

Coracoid process

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8
Q

what nerve innervates pec minor?

A

medial nerve

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9
Q

What is the function of pec minor?

A

Depression of the scapula

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10
Q

Where is the origin of serrates anterior?

A

ribs 1 to 8

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11
Q

Where is the insertion of serrates anterior?

A

Sub-scapula surface

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12
Q

What innervates the serrates anterior?

A

long thoracic nerve

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13
Q

What is the function of serrates anterior?

A

upward protraction.

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14
Q

Where does the deltoid muscle originate?

A

scapular and clavicle

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15
Q

Where is the insertion of the deltoid muscle?

A

Humerus

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16
Q

What is the function of the deltoid muscle?

A

abduction of the arms

17
Q

What nerve innervates the deltoid muscle?

A

axillary nerve

18
Q

What are the articulations of the clavicle?

A

sternoclavicualr and acromion

19
Q

How does contraction of pec major assisting in breathing?

A

normally should not unless disease or breathing. contracts and allows inhalation

20
Q

Whats forms the edge of anteriorly axillary fold?

A

Edge of pec major muscle

21
Q

What are the subcutaneous structures that lie anterior to the chest wall?

A

Clavicle

Sternum

22
Q

What are the articulates of the clavicle?

A

sternoclavicular joint

acromioclavicular joint

23
Q

What form the anterior axially fold?

A

Lower edge of pec major muscle

24
Q

What lies deep the pectorals major?

A

The axilla

Anatomy (ME) (23 decks)

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