Arm, Elbow, Forearms Flashcards

1
Q

Remember these parts of the humerus

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

Region of lumphatic drainage from the lateral part of the breast

A

Axilla

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

Types of major muscles of the anterior compartment of the arm. Bonus points for specific names

A

Flexors of the forearm

  • Coracobrachialis
  • Biceps brachii
  • Brachialis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This nerve innervates the anterior compartment muscles?

A

Musculocutaneous nerve

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

Review this diagram of the bones of the elbow

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

What is the only muscle that crosses both the glenohumeral and ebow joint?

A

Biceps

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

What is the most powerful supinator of the forearm when elbow joint is fixed?

A

Biceps

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

Three major functions of the Biceps Brachii

Hint: 2 of them are flexes, 1 is supination

A
  • Flexes the elbow
  • Supinates the forearm
  • Flexes the shoulder
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Actions of the Coracobrachilis

Also the origin of it (Hint: look at the name)

A

Flexes the shoulder

Adducts the shoulder

Origin: Coracoid process of scapula

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

Function and origin of the Brachialis Muscle

A

Flexes the elbow

Origin: Distal half of anterior surface of humerus

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

What major muscles make up the posterior compartment?

A

Extensors of the forearm (triceps)

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

What nerve innervates the posterior compartment muscles?

A

Radial Nerve

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

Functions of the three heads of the triceps brachii

A

All heads: Extend elbow

Long head specifically: Extends shoulder and adducts shoulder

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

Remember this diagram of arteries of the arm (mainly the major ones, axillary, brachial, radial, ulnar)

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

What two veins does the subclavian vein branch into?

A

Cephalic and Axillary

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

What two veins arise from branching form the axillary vein?

A

Basilic and Brachial

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

Four major nerves of the arm

A

Musculocutaneous

Median

Radial

Ulnar

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

Know these general locations of the nerves of the arm

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

Parts of the cubital fossa from lateral to medial

A

Biceps brachii tendon

Brachial artery

Median nerve

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

Have general knowledge of these bones of the elbow

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

Diagram of the elbow joint

A
22
Q

Radiograph of the elbow joint

A
23
Q

Radiograph of the bones of the elbow

A
24
Q

Notches of the elbow diagram

A
25
Q

Which element has the largest melting point?

A

Tungsten

26
Q

This is just a quick reminder to drink plenty of water and watch your posture.

A

That’s all, get back to studying

27
Q

Which ligament provides 55% of resistance to valgus stress at the elbow at 90° flexion?

A

Ulna Collateral Ligament

28
Q

Which ligament is a strong band of fibers attached by both its ends to the anterior and posterior margins of the radial notch of the ulna?

A

Annular Ligament

29
Q

What two movemensts are possible at the annular ligament joint?

A

Pronation and Supination

30
Q

Review this diagram of the forearm

A
31
Q

What does the radial head articulate with?

A

Radial tuberosity of the humerus

32
Q

What is the thin fibrous sheath that connects the medial border of the radius to the lateral border of the ulna?

A

Intraosseus membrane

33
Q

Major function of the intraosseus membrane

A

Provides attachment for muscles in the anterior and posterior compartments

34
Q

Major movements of the elbow

A

Hinge: back and forth

Supination and pronation

35
Q

True or false, the radius can cross the ulna

A

True! This allows for pronation and supination

36
Q

Where does the axillary artery name change to brachial artery?

A

At the level of the lower margin of teres major muscle

37
Q

Give distributions of the major nerves of the shoulder, arms and forearms

Axillary

Musculocutaneous

Median

Ulnar
Radial

A

Axillar: deltoid and teres minor

Musculotaneous: Flexors

Median: Most of the flexor muscles of forearm and muscles in hand

Ulnar: FCU and part of forearm and intrinsic muscles in hand

Radial: innvervates all extensor muscles of arm and forearm

38
Q

Components and uses of anterior compartment of forearm

A

Flexion of wrists and fingers

Pronation

Superficia and deep layers

39
Q

Components and functions of posterior compartment of forearm

A

Extension of wirsts and fingers

Supination

Superficial and deep layer

40
Q

Three flexors of the wrist

*Most important: What is their common origin?

A

Flexor Carpi radialis

Flexor Carpi ulnaris

Palmaris longus

Origin: Medial epicondyle of humerus (FLEM)

41
Q

Which flexo flexes and abducts the wrist?

Can also assist in flexing elbow

A

Flexor carpi radialis

42
Q

Which flexor flexes the wrist and tenses the palmar fascia?

Can also assit in flexing elbow

A

Palmaris longus

43
Q

Which flexor flexes the wrist, adducts the wrist and assist to flex the elbow

A

Flexor Carpi Ulnaris

44
Q

Three extensors of the wrist

A

Extensor carpi radialis longus

Extensor carpi radialis brevis

Extensor carpi ulnaris

45
Q

Common origin of the extensors of the wrist

A

Lateral epicondyle (LEX) (except not the radialis longus)

46
Q

Which nerve innervates the extensors of the wrist?

A

Radial nerve

47
Q

Origin of the Carpi Radialis Longus

(This is actually important)

A

Distal 1/3 of lateral supracondylar ridge of the humerus

48
Q

Functions of both the Extensor Carpi Radialis Brevis and Longus

A

Extends wrist

Abducts wrist

Assists to flex elbow

49
Q

Functions of the extensor carpi ulnaris (2 of them)

A

Extends wrist

Adducts wrist

50
Q

What holds bones together during pronation and supination? (There’s 3 of them)

A

Annular ligament

Inerosseus membran

Articular disc at distal radioulnar joint

51
Q

Muscles that pronate the forearm

A

Pronator teres and pronator quadratus

52
Q

Function of the supinator

A

Supinates forearm

(Who would’ve thought?)