Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

IMSK Lab Practical 2 > OINA 1-10 > Flashcards

OINA 1-10 Flashcards

1
Q

What is the proximal and distal attachments of pectoralis major?

A

Proximal: Clavicular head- anterior surface of medial half of clavicle; Sternocostal head- anterior surface of sternum, superior six costal cartilages, aponeurosis of external oblique muscle

Distal: Lateral lip of intertuberous sulcus of humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What supplies blood to the pectoralis major?

A

Pectoral and Clavicular branches of thoracoacromial trunk perforating branches of internal thoracic artery; superior and lateral thoracic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What nerve innervates pectoralis major?

A

Lateral pectoral nerve and medial pectoral nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the action of pectoralis major?

A

Adducts and medially rotates humerus; acting alone Clavicular head flexes humerus and Sternocostal head extends it from the flexed position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the proximal and distal attachments of pectoralis minor?

A

Proximal: 3rd-5th ribs near their costal cartilage

Distal: Medial border and superior surface of coracoid process of scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the blood supply to the pectoralis minor?

A

Pectoral branch of thoracoacromial trunk; superior and lateral thoracic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What nerve innervates pectoralis minor?

A

Medial pectoral nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the proximal and distal attachments of subclavius?

A

Proximal: Junction of 1st rib and its costal cartilage

Distal: Inferior surface of middle third of clavicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the blood supply to subclavius?

A

Clavicular branch of thoracoacromial trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What nerve innervates subclavius?

A

Nerve to subclavius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the action of pectoralis minor?

A

Stabilizes scapula by drawing it inferiorly and anteriorly against the thoracic wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the action of subclavius?

A

Anchors and depresses clavicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the proximal and distal attachments of serratus anterior?

A

Proximal: External surfaces of lateral parts of 1st-8th ribs

Distal: Anterior surface of the medial border of the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the blood supply to serratus anterior?

A

Thoracodorsal artery; superior and lateral thoracic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the proximal and distal attachments of the deltoid?

A

Proximal: Lateral third of clavicle; acromion and spine of scapula

Distal: Deltoid tuberosity of the humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the blood supply to the deltoid?

A

Acromial and deltoid branches of the thoracoacromial trunk; anterior and posterior circumflex humeral arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What nerve innervates the deltoid?

A

Axillary nerve

18
Q

What is the action of the deltoid?

A

Clavicular (anterior) part: flexes and medially rotates arm
Acromial (middle) part: abducts arm
Spinal (posterior) part: extends and laterally rotates arm

19
Q

What are the proximal and distal attachments of supraspinatus?

A

Proximal: Supraspinous fossa of the scapula

Distal: Superior facet of greater tubercle of humerus

20
Q

What is the blood supply to supraspinatus?

A

Dorsal scapular artery and suprascapular artery

21
Q

What nerve innervates supraspinatus?

A

Suprascapular nerve

22
Q

What is the action of supraspinatus?

A

Initiates and assists deltoid in abduction of arm and acts with rotator cuff muscles

23
Q

What are the proximal and distal attachments of infraspinatus?

A

Proximal: Infraspinous fossa of scapula

Distal: Middle facet on greater tubercle of humerus

24
Q

What is the blood supply to infraspinatus?

A

Suprascapular artery and circumflex scapular artery

25
Q

What nerve innervates infraspinatus?

A

Suprascapular nerve

26
Q

What is the action of infraspinatus?

A

Laterally rotates arm and acts with rotator cuff muscles

27
Q

What are the proximal and distal attachments of subscapularis?

A

Proximal: Subscapular fossa

Distal: Lesser tubercle of humerus

28
Q

What is the blood supply to subscapularis?

A

Subscapular artery

29
Q

What nerve innervates subscapularis?

A

Upper and lower subscapular nerve

30
Q

What is the action of subscapularis?

A

Medially rotates arm; as part of the rotator cuff, helps hold head of humerus in glenoid cavity

31
Q

What are the proximal and distal attachments of teres major?

A

Proximal: Posterior surface of inferior angle of scapula

Distal: Medial lip of intertuberous sulcus

32
Q

What is the blood supply to teres major?

A

Posterior circumflex humeral artery; thoracodorsal artery

33
Q

What nerve innervates teres major?

A

Lower subscapular nerve

34
Q

What is the action of teres major?

A

Adducts, extend and medially rotates arm

35
Q

What are the proximal and distal attachments of teres minor?

A

Proximal: Middle part of lateral border of scapula

Distal: Inferior facet on greater tubercle of humerus

36
Q

What is the blood supply to teres minor?

A

Circumflex scapular artery; posterior circumflex humeral artery

37
Q

What nerve innervates teres minor?

A

Axillary nerve

38
Q

What is the action of teres minor?

A

Laterally rotates arm; and acts with rotator cuff muscles

39
Q

What is the action of serratus anterior?

A

Protracts scapula and holds it against thoracic wall; rotates scapula

40
Q

What nerve innervates serratus anterior?

A

Long thoracic nerve

IMSK Lab Practical 2 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions