Brainscape's Knowledge GenomeTM

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


See full index

MSS > Shoulder and Brachium > Flashcards

Shoulder and Brachium Flashcards

week 7

1
Q

Function of the clavicle

A

Holds upper limb away from the trunk via the use of forces:

Clavicle transmitting forces: transmits forces from upper limb to trunk

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

What are the bones of the pectoral glide?

A

Clavicle and scapula

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

Bony Landmarks and features of the clavicle

A

Flat lateral end and rounded medial end

Lateral end: attachment of coracoclavicular ligament (conoid tubercle)

Medial end: attachment of costoclavicular ligament - attach to rib syn

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

Sternoclavicular atriculation

A

with manubrium of sternum medially = synovial saddle

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

Acromioclavicular joint articulation

A

= with acromion of scapula laterally = synovial plane

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

What ligaments stablise the acromicoclavicular joint?

A

acromioclavicular and coraoclavicular ligament

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

What muscles attach to the clavicle?

A

Pectorals major, deltoid, trapezius (lateral 1/3) , and SCM (1/3)

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

function of scapula

A

Muscle attachment and mobility

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

Articulation of scapula

A

Articulation

Acromion articulates with clavicle at the acromioclavicular joint

Glenoid fossa articulates with humeral head at glenohumeral joint

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

What are the three joints of the pectoral glide?

A

1- Gleno-humeral
2- Acromioclacicular joint 3- sternoclavicular joint

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

Articulation of the humerus. ( two joints)

A

Glenohumeral joint:
-head with glenoid fossa

Elbow joint:
-Capitulum with radius (humeroradial)

-Trochlea with Ulna (humeroulnar)

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

What is the structural and functional joint type of the Glenohumeral joint?

A

S= synovial ball and socket

F= multiaxial (diarthrosis)

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

What are the three ligaments of the glenohumeral joint?

A

Coracoacromial

Glenohumeral

Coracohumeral

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

Origin, insertion and function of Coracoacromial ligament

A

O= Coracoid process

I= acromion

Functions
- Overlies head of humerus = prevents superior displacement

-Creates coracoacromial arch

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

Origin, insertion and function of Glenohumeral ligament

A

O= Glenoid Labrum

I- Blends with the joint capsule and attaches to the anatomical neck

F= Reinforces anterior part of joint capsule

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

Origin and insertion of coracohumeral ligament

A

o= coracoid process

I= greater tubercle

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

What are the main stabilities of the Glenohumeral joint?

A

1- rotator cuff
2- tendon of long head of biceps brachii

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

What are the 4 rotator cuff muscles?

A

Supraspinatus

Infraspinatus

Teres minor

Subscapularis

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

Attachment, innervation and movement of supraspinatus

A

Supraspinous fossa –> greater tubercle

Suprascapular nerve

Shoulder abduction

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

Attachment, innervation and movement of infraspinatus.

A

Infraspinous fossa –> greater tubercle

Suprascapular nerve

Lateral rotation of shoulder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the three muscles of the Anterior compartment of arm?

A

Biceps brachii

Coracobrachialis

Brachialis

22
Q

Attachment, innervation and movement of the biceps brachii?

A

Coracoid process + supraglenoid tubercle –> radial tuberosity

Musculocutaneous nerve

Elbow flexion

Forearm supination

Shoulder flexion

23
Q

Attachment, innervation and movement of the coracobrachilalis

A

Coracoid process –> Midshaft of humerus

Musculocutaneous nerve

Shoulder flexion

Shoulder abduction

24
Q

Attachment, innervation and movement of the Brachialis

A

Midshaft humerus –> ulna tuberosity

Musculocutaneous nerve

Elbow flexion

25
Q

What other muscles (aside from the rotator cuff and anterior compartment of arm muscles) act on the glenohumeral joint?

A

Pectorals minor

Pectorals major

Serratus anterior

Trapezius

Rhomboids

Teres major

Latissimus dorsi

Tricep brachia long head

26
Q

What is the sensory and motor innervations of the Musculocutaneous brachial nerve?

A

S- Anterolateral forearm

M- Muscles of anterior compartment of arm

27
Q

Root, sensory innervation and motor innervation of Axially brachial nerve.

A

C5-C6

s= Regimental badge

m= Deltoid and teres minor

28
Q

Root, sensory innervation and motor innervation of radial brachial nerve.

A

C5-C8, T1

Posterior UL and lateral thenar eminence

All muscles in posterior compartment of arm

29
Q

Root, sensory innervation and motor innervation of Median brachial nerve.

A

C6-C8, T1

Lateral 3 digist (fingers)

Distal aspects of lateral 3 fingers

Most forearm flexors

Thenar muscles

1st-2nd lumbricals

30
Q

Root, sensory innervation and motor innervation of Ulnar brachial nerve.

A

C7 (sometimes), C8, T1

Palmar: medial 1 ½ digits

Dorsal: 1 ½ digits

Flexor carpi ulnaris

Most intrinsic muscles of the head

31
Q

Name the 8 peripheral nerves (shoulder and brachii) to know

A

Dorsal scapular

Long thoratic

Suprascapular

Lateral pectoral

Medial pectroal

Superior subscapular nerve

Inferior subscapular nerve

Thoracodorsal

32
Q

Major arteries of the upper limb

A

subclavian artery → axillary artery → brachial artery → ulnar and radial arteries

33
Q

Mahor veins of the upper limb

A

Cephalic and basilic veins –> axialliry vein –> subclavian vein

34
Q

What passes through the suprascapular notch?

A

the suprascapular nerve

35
Q

What articulates with the acromion process of the scapula?

A

the clavicle

36
Q

What attaches to the coracoid process of the scapula at the tip?

A

Three muscles:
Pectoralis Minor, Coracobrachialis, and Biceps Brachii

37
Q

What attaches to the infraglenoid tubercle?

A

triceps brachii

38
Q

what attaches to the spine of the scapula

A

traps and deltoid

39
Q

What attaches to the supraglenoid tubercle?

A

long head of biceos brachii

40
Q

what runs in the intertubercular sulcus of the humerus?

A

separates the greater tubercle from the lesser tubercle. It allows for the long tendon of the biceps brachii muscle to pass.

41
Q

What attaches to the greater and lesser tubercles of the humerus (ligaments and muscles)

A

Greater tubercle: supraspinatus, infrapinatus and teres minor

lesser tubercule: subscapularis

transverse humeral ligament- joints the two tubercules

42
Q

What runs distal to the deltoid tuberosity in the spiral groove of posterior humerus?

A

radial nerve

43
Q

what type of synovial joints is the:
a- sternoclavocular joint
b-acrominoclavicar joint
c- coracoclavicular joint

A

a- saddle
b-plane
c- plane

44
Q

Where does the short head of biceps brachji insert into?

A

coracoid process

45
Q

What do the (a) posterior and (b) anterior fibres of the deltoid allow for?

A

posterior = extentsion
anterior = flexion

46
Q

which structures stabilise the attachment of the clavicle to neighbouring structures?

A

Actominocalvicular ligament
coraciclavicular ligament
sternoclaviclar joint

47
Q

What are the two parts of the coracoclavicular ligament?

A

trapazoid
conoid

48
Q

What muscles attach to the clavicle?

A

SCM, deltoid, pecs major and traps

49
Q

if the clavicle is displaced, what structures are vulnerable to injury?

A

internal jugular vein
subclavian artery and vein

50
Q

Cause of Winged Scapula

A

Long Thoracic nerve injury

innervates serratus anterior = protection and medial rotation of scapula

= unopposed retraction = winged

51
Q

In Bell’s Palsy, what nerve is affected and what muscles does this nerve innervate?

A

facial nerve

Obicularis oris
and buccinator

52
Q

Compare the effects of a lesion at the midshaft humerus vs wrist

A

Both = Damage to radial nerve

Lesion at Midshaft of Humerus:
-wrist drop
-triceps may be affected = loss of elbow extension

-weakend supination, elbow flexion and wrist adduction and abduction.

Lesion at wrist
-loss of sensation on dorsolateral surface of hand

MSS (18 decks)

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