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Musculoskeletal System > Anterior Forearm > Flashcards

Anterior Forearm Flashcards

1
Q

Where does pronator teres originate?

A

Medial epicondyle of humerus

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2
Q

How many heads does pronator teres have?

A

2

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3
Q

How does the median nerve enter the forearm?

A

Through the cubital fossa and between the 2 heads of pronator teres

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4
Q

What forms the medial boundary of the cubital fossa?

A

Lateral side of pronator teres

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5
Q

Where do we often take blood from?

A

Median cubital vein

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6
Q

What does the median cubital vein connect?

A

Cephalic and basilic veins

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7
Q

What structures does the cubital fossa contain?

A

Radial nerve
Biceps brachii tendon
Brachial artery
Median nerve

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8
Q

Which artery do we use to measure BP?

A

Brachial artery

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9
Q

Which artery is most superficial: radial or ulnar?

A

radial artery

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10
Q

Which artery supplies the most blood to the hand?

A

Ulnar artery

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11
Q

What are the general functions of the anterior forearm compartment?

A

Flexion and pronation

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12
Q

How many muscles are in the anterior forearm and in how many layers?

A

8 muscles

3 layers

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13
Q

How many superficial anterior forearm muscles are there and what are they?

A 
4 
Pronator teres 
Flexor carpi radialis 
Palmaris longus
Flexor carpi ulnaris
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14
Q

Which superficial anterior forearm muscle do 30% of people not have?

A

palmaris longus

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15
Q

Which muscle lays in the middle part of the anterior forearm?

A

Flexor digitorum superficialis

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16
Q

What is the action of the flexor digitorum superficialis?

A

Flexes the proximal interphalangeal joints and metacarpophalangeal joints

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17
Q

How many deep anterior forearm muscles are there and what are they?

A

3
Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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18
Q

Which 2 muscles are the ulnar nerve and ulnar artery sandwiched between?

A

Flexor carpi ulnaris and the flexor digitorum profundus

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19
Q

Which artery is most superficial: radial or ulnar?

A

radial artery

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20
Q

Which artery supplies the most blood to the hand?

A

Ulnar artery

21
Q

What are the general functions of the anterior forearm compartment?

A

Flexion and pronation

22
Q

How many muscles are in the anterior forearm and in how many layers?

A

8 muscles

3 layers

23
Q

How many superficial anterior forearm muscles are there and what are they?

A 
4 
Pronator teres 
Flexor carpi radialis 
Palmaris longus
Flexor carpi ulnaris
24
Q

Which superficial anterior forearm muscle do 30% of people not have?

A

palmaris longus

25
Q

Which muscle lays in the middle part of the anterior forearm?

A

Flexor digitorum superficialis

26
Q

What is the action of the flexor digitorum superficialis?

A

Flexes the proximal interphalangeal joints and metacarpophalangeal joints

27
Q

How many deep anterior forearm muscles are there and what are they?

A

3
Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

28
Q

Which 2 muscles are the ulnar nerve and ulnar artery sandwiched between?

A

Flexor carpi ulnaris and the flexor digitorum profundus

29
Q

What passes through the carpal tunnel?

A

4 tendons of flexor digitorum profundus
4 tendons of flexor digitorum superficialis
Tendon of flexor pollicis longus
Median nerve

30
Q

What forms the roof of the carpal tunnel?

A

Flexor retinaculum

31
Q

Where do the tendons of flexor digitorum superficialis attach?

A

Shaft of middle phalanges

32
Q

Where do the tendons of flexor digitorum profundus attach?

A

Base of the distal phalanges

33
Q

What is the origin of FCU?

A

Medial epicondyle of humerus

34
Q

What is the insertion of FCU?

A

Pisiform

35
Q

What it the action of FCU?

A

Flexion and Adduction of wrist

36
Q

What is the origin of palmaris longus?

A

Medial epicondyle of humerus

37
Q

What is the insertion of palmaris longus?

A

Flexor retinaculum

38
Q

What is the action of palmaris longus?

A

Flexion at wrist

39
Q

What is the origin of FCR?

A

Medial epicondyle humerus

40
Q

What is the insertion of FCR?

A

Base of metacarpals II and III

41
Q

What is the action of FCR?

A

Flexion and abduction of wrist

42
Q

What is the action of FDS?

A

Flexes MCP joints
Flexes proximal IP joints
Flexes wrist

43
Q

What is the origin of FDP?

A

Ulna

44
Q

What is the action of FDP?

A

Flexes distal IP joints

Flexes MCP joints

45
Q

What is the origin of FPL?

A

Radius

46
Q

What is the attachment of FPL?

A

Base of distal phalanx of thumb

47
Q

What is the action of FPL?

A

Flexes IP and MCP joints of thumb

48
Q

What is the origin of pronator quadratus?

A

Ulna

49
Q

What is the insertion of pronator quadratus?

A

Radius

Musculoskeletal System (26 decks)

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