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med212 > Lecture8: Shoulder Region 1 > Flashcards

Lecture8: Shoulder Region 1 Flashcards

1
Q

What is the nerve supply of the Pectoralis Major?

A

Medial and Lateral pectoral nerves

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2
Q

What is the insertion of the pectoralis major?

A

Bicipital groove of humerus

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3
Q

Name Pectoralis Major functions?

A

Medial rotation, trunk elevation during climbing, shoulder flexion, shoulder adduction

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4
Q

What is the Pectoralis Minor insertion?

A

Coracoid process of scapula (medially)

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5
Q

What is the Pectoralis Minor nerve supply?

A

Medial pectoral nerve

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6
Q

Name actions of the Pectoralis Minor

A

Protraction of scapula and depression of shoulder

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7
Q

What is the nerve supply of the subclavius M?

A

Nerve to subclavius

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8
Q

What is the action of the Subclavius M?

A

Steadies the clavicle and fixes it to the first rib during movement of the upper limb

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9
Q

What is the deltoid attachment?

A

From lateral part of clavicle and spine of scapula to the deltoid tuberosity

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10
Q

What is the deltoid nerve supply?

A

Axillary nerve ( c5, c6 )

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11
Q

What is the action of the posterior fibres of the deltoid muscle?

A

Extension and lateral rotation of the Humerus

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12
Q

What is the action of the anterior fibres of the deltoid?

A

Flexion and medial rotation of humerus

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13
Q

What does axillary nerve injury lead to?

A

Paralysis of deltoid and flattening of shoulder

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14
Q

What is the Trapezius attached to?

A

Cervical and upper thoracic spines

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15
Q

What is the Latissimus dorsi attached to?

A

Lower part of back

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16
Q

What is the insertion of the Latissimus dorsi?

A

Bicipital groove

17
Q

What is the insertion of trapezius?

A

Lateral part of clavicle and spine of scapula, acromion

18
Q

What is the nerve supply of the traps?

A

Spinal accessory nerve

19
Q

What is the nerve supply of the Latissimus dorsi?

A

Nerve to Latissimus dorsi

20
Q

What are actions of the traps?

A

Scapula rotation, depression, elevation.

21
Q

What is the actions of Latissimus dorsi?

A

Adducts, rotates, extends the arm, climbing and swimming

22
Q

Where are the deep layer muscles attached to?

A

Medial border of scapula

23
Q

What is the nerve supply to the Rhomboids?

A

Dorsal Scapular Nerve

24
Q

What is the action of the Levator Scapulae?

A

Scapula elevation

25
Q

What is the action of rhomboids?

A

Scapula retraction

26
Q

What does traps paralysis lead to?

A

Shoulder drop

med212 (23 decks)

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