Brainscape's Knowledge GenomeTM

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


See full index

Human Anatomy exam 1 > L3 Shoulder, Axilla, And Arm > Flashcards

L3 Shoulder, Axilla, And Arm Flashcards

1
Q

What are the joints of the shoulder?

3

A

Sternoclavicular joint SC
Acromioclavicular joint AC
Glenohumeral joint

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

SC joint type and shape

A

Saddle-shaped synovial

Between sternum and clavicle

Complex because it’s interrupted by disc

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

SC joint movements

A

Elevation, depression
Retraction, protraction
Of scapula

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

AC joint type and shape

A

Plane-shaped synovial
Allows gliding

Between lateral end of clavicle and acromion of scapula

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

AC joint movements

A

Retraction, protraction of scapula

Anteroposterior axis

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

What ligament(s) reinforce the AC joint?

A

Coracoclavicular (CC) ligament

Trapezoid portion is lateral
Conoid portion is more medial

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

Is it possible to damage AC joint but not CC ligament?

A

Yes

Because they are in different locations

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

What acromioclavicular (AC) dislocation and what does it look like clinically?

A

Shoulder separation when AC joint and CC ligaments are torn

Looks like bulge near the lateral portion of clavicle

Should separates from clavicle and falls because of the weight of upper limb

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

Type and shape of glenohumeral joint?

A

Ball and socket synovial (most movement because moves around transverse, anterior/posterior, and vertical axis)

Between humorous and shoulder

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

What’s the ligament associated with the glenohumeral joint?

A

Coracoacromial ligament

Very rigid , adds stability

Between coracoid and acromion of scapula

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

What are the movements of the glenohumeral joint?

A

Flexion/extension
Medial/lateral rotation
Abduction/adduction
Circumduction

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

What are the anterior axioappendicular muscles?

A

Pectoralis major
Pectoralis minor
Serratus anterior

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

What are the posterior axioappendicular muscles?

A

Trapezius
Latissimis dorsi
Rhomboid major and minor
Levator scapulae

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

What are the scapulohumeral muscles?

A

Deltoid
Teres major
Rotator cuff muscles

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

What muscles are in the rotator cuff?

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

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

Deltoid muscles movements

A

Origin is U shaped
Insertion is on humerus

anterior fibers: flexion/medial rotation
Middle fibers: abduction
Superior fibers: extension, lateral rotation

All parts working together: abduction

17
Q

What do all rotator cuffs do?

A

Stabilize the glenohumeral joint

18
Q

Rotator cuff injuries most commonly affect the

A

Supraspinatus

19
Q

Generally, the muscles innervated by nerve fibers proximal to the injury will do what?

A

Function

20
Q

Muscles innervated by nerve fibers distal to the injury will..

A

Be paralyzed or weakened

21
Q

If a nerve is injured what happen to the muscle fibers innervated by that nerve?

A

Will be paralyzed

Will also atrophy and muscle mass will decrease

22
Q

What’s the axilla?

A

AKA armpit
Good passage way from core to UE

Has posterior lateral border, medial border, and anterior lateral border

23
Q

What passes through the axilla?

A

A lot of nerves

If surgery is done to remove lymph nodes (in breast cancer patients) long thoracic and thoracordorsal nerves can be damaged

24
Q

What nerves are involved in brachial plexus?

A

C5, C6, C7, C8, T1

25
Q

From most proximal to distal, what are the five parts the brachial nerves are broken into?

A 
Roots
Trunks
Divisions 
Cords
Branches
26
Q

Suprascapular n travels where? And what muscles will it damage

A

Deep to transverse scapular ligament

Supraspinatus and infraspinatus

27
Q

What are the three trunks of brachial plexus?

A

Superior
Middle
Inferior

28
Q

What are the three cords of the brachial plexus?

A

Lateral
Posterior
Medial

29
Q

What are the five major branches of brachial plexus?

A 
Musculocutaneous 
Median 
Ulnar
Radial
Axillary
30
Q

What does the anterior compartment contain and what movements do they perform ?

A

Flexsion and pronation

Musculocutaneous
Median
Ulnar

31
Q

What does the posterior compartment of the arm contain and what movements do they perform?

A

Extension and supination

Radial
Axillary

Human Anatomy exam 1 (7 decks)

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