Brainscape's Knowledge GenomeTM

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


See full index

Anatomy > Superficial Shoulder > Flashcards

Superficial Shoulder Flashcards

1
Q

The superficial, or extrinsic, muscles of the back are muscles that move the (2)
All but one are innervated by branches from the

A 
upper limb and pectoral girdle
brachial plexus (ventral rami)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

layer 1 of the extrinsic back (2)

A

trapezius

latissimus dorsi

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

trapezius innervation
motor
sensory

A

motor: accessory nerve/CN11
sensory: C3/C4 spinal nerves

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

latissimus dorsi innervation

A

thoracodorsal nerve

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

layer 2 of the extrinsic back (3)

A

levator scapulae
rhomboid minor
rhomboid major

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

levator scapulae innervation

A

3rd & 4th cervical spinal nerves & dorsal scapular nerve

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

rhomboid major and minor innervation

A

dorsal scapular nerve

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

layer 3 extrinsic back muscles (2)

A

serratus posterior superior

serratus posterior inferior

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

serratus posterior superior and serratus posterior inferior do NOT

A

move the limb

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

serratus posterior superior and serratus posterior inferior innervation

A

intercostal nerve branches

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

trapezius proximal attachment (3)

A

external occipital protuberance of skull,
nuchal ligament,
spinous processes of C7-T12 vertebrae

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

trapezius distal attachment (3)

A

-lateral third of clavicle (anterior),
acromion,
spine of scapula

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

trapezius actions (2)

A

elevates, depresses, and retracts scapula,

rotates glenoid fossa superiorly

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

trapezius innervation

  • motor:
  • pain & proprioception:
A
  • motor: accessory nerve (CNXI)

- pain & proprioception: C3 & C4

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

Latissimus dorsi

Proximal Attachment: (4)

A

spinous processes of inferior 6 thoracic vertebrae,
thoracolumbar fascia,
iliac crest,
inferior 3 ribs

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

Latissimus dorsi

Distal attachment

A

floor of intertubercular sulcus (bicipital groove) of humerus

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

Latissimus dorsi

Actions (3)

A

extends, adducts, and medially rotates humerus;
raises torso towards arms during climbing
pulls humerus down when torso is fixed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Latissimus dorsi

Innervation

A

thoracodorsal nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Rhomboid major & Rhomboid minor:
Proximal attachment
-r. major: (1)
-r. minor: (2)

A
  • r. major: spinous processes of T2-T5

- r. minor: nuchal ligament, spinous processes of C7 & T1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Rhomboid major & Rhomboid minor:
distal attachment
-r. major: (1)
-r. minor: (1)

A
  • -r. major: medial border of scapula from level of spine to inferior angle
  • r. minor: medial end of scapular spine
21
Q

Rhomboid major & Rhomboid minor:

actions (2)

A

BOTH retract, elevate, and rotate scapula downward,

as well as fix it to thoracic wall

22
Q

Rhomboid major & Rhomboid minor:

innervation

A

BOTH dorsal scapular nerve

23
Q 
Levator scapulae: 
Proximal Attachment (1)
A

-posterior tubercles of transverse processes of first 4 cervical vertebrae

24
Q 
Levator scapulae:
Distal Attachment (2)
A

medial border of scapula,

superior part of scapular spine

25
Q

Levator scapulae:

Actions (2)

A

elevates scapula

tilts glenoid fossa inferiorly by rotating scapula (downward rotation)

26
Q

Levator scapulae:

Innervation (2)

A

-dorsal scapular nerve and cervical spinal nerves (C3-C4)

27
Q

3 muscles move the scapula:

A

rhomboid major
rhomboid minor
levator scapulae

28
Q

These 3 muscles move the scapula:
Rhomboid major & minor: (3)
Levator scapulae: (2)

A
  1. elevates scapula
  2. retraction
  3. downward rotation
  4. elevates scapula
  5. downward rotation
29
Q

Anterior Axio-Appendicular Muscles muscles of the — region

A

pectoral

30
Q

Anterior Axio-Appendicular Muscles are innervated by

A

ventral rami of spinal nerves via branches of the brachial plexus

31
Q

Anterior Axio-Appendicular Muscles include (4)

A
  • Pectoralis major
  • Pectoralis minor
  • Subclavius
  • Serratus anterior
32
Q 
Pectoralis major: 
Proximal Attachment (3)
A

-clavicular and sternocostal attachments
• ant. surface of medial ½ of clavicle
• ant. surface of sternum and superior 6 costal cartilages

33
Q 
Pectoralis major: 
Distal attachment (1)
A

-lateral lip of intertubercular sulcus (bicipital groove)

34
Q

Pectoralis major:

Actions (4)

A
  • adducts & medial rotates humerus
  • draws scapula anteriorly & inferiorly (via clavicle)
  • clavicular portion flexes humerus
  • sternal portion can extend humerus while it is in this flexed position
35
Q

Pectoralis major:

Innervation (2)

A

lateral & medial pectoral nerves

36
Q

Pectoralis minor:

Proximal Attachment

A

3rd – 5th ribs, near coastal cartilages

37
Q

Pectoralis minor:

Distal Attachment

A

coracoid process of scapula

38
Q

Pectoralis minor:

Actions

A

stabilizes scapula by pulling it anteriorly & inferiorly against posterior
thoracic wall

39
Q

Pectoralis minor:

Innervation

A

-medial pectoral nerve

it is usually pierced by this nerve

40
Q

Serratus anterior:

Proximal Attachment

A

-external surfaces of lateral parts of ribs 1-9

41
Q

Serratus anterior:

Distal Attachment

A

-anterior surface of medial border of scapula

42
Q

Serratus anterior:

Actions (3)

A

protracts scapula,
rotates scapula,
holds scapula against thorax

43
Q

Serratus anterior:

Innervation

A
  • long thoracic nerve
44
Q

Clinical Correlation: Medial Winging of Scapula (3)

A
  • Damage to long thoracic nerve
  • Serratus anterior affected
  • Medial border of scapula protrudes
45
Q

Subclavius (does not move limb – stabilizes —)

A

clavicle

46
Q

Subclavius:

Proximal Attachment

A

-junction of 1st rib and its costal cartilage

47
Q

Subclavius:

Distal Attachment

A

inferior surface of middle 1/3 of clavicle

48
Q

Subclavius:

Actions

A

anchors and depresses clavicle

49
Q

Subclavius:

Innervation

A

“nerve to subclavius”

Anatomy (29 decks)

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