Brainscape's Knowledge GenomeTM

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


See full index

Anatomy I- Erin > Arm and Forearm > Flashcards

Arm and Forearm Flashcards

1
Q

Origin, insertion, actions, blood supply, and innervation of BICEPS BRACHII

A

origin:

  • long head: supraglenoid tubercle
  • short head: coracoid process

insertion: radial tuberosity and bicipital aponeurosis
actions: supinates, resists dislocation
blood: brachial artery
innervation: musculocutaneous nerve

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

Origin, insertion, actions, blood supply, and innervation of CORACOBRACHIALIS

A

origin: coracoid process
insertion: middle 1/3 of medial humeral surface
actions: flexes and adducts, resists dislocation
blood: brachial artery
innervation: musculocutaneous nerve

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

Origin, insertion, actions, blood supply, and innervation of BRACHIALIS

A

origin: distal 1/2 of ant. surface of humerus
insertion: coronoid process and tuberosity of ulna
actions: flexes forearm at elbow
blood: brachial artery
innervation: musculocutaneous nerve and possible radial nerve

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

What are the extensors in the brachium?

A
  • triceps brachii

- anconeus

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

Origin, insertion, actions, blood supply, and innervation of ANCONEUS

A

origin: lateral epicondyle of humerus
insertion: lateral surface of olecranon, sup. surface of ulna
actions: assists triceps in extension of forearm and stabilizes elbow joint, abducts ulna in pronation
blood: deep brachial arterey
innervation: radial nerve

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

Origin, insertion, actions, blood supply, and innervation of TRICEPS BRACHII

A

origin:

  • long: infraglenoid tubercle
  • lateral: post. surface of humerus
  • medial: post. surface of humerus, inf. to radial groove

insertions: proximal end of olecranon and fascia
actions: extends forearm, resists dislocation
blood: deep brachial arterey
innervation: radial nerve

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

What are the boundaries of the cubital fossa???

A

lateral: brachioradialis
medial: pronator teres
superior: line between medial and lateral epicondyles
roof: skin, superficial and deep fascia, bicipital aponeurosis
floor: supinator and brachialis

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

What is in the cubital fossa?

A
  1. median nerve
  2. bifurcation of radial and ulnar arteries
  3. brachial veins
  4. tendon of biceps brachii and bicipital aponeurosis
  5. radial nerve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the “funny bone?”

A

ulnar nerve

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

What are the two cubital anastomoses?

A

-brachial artery -> ulnar artery
+sup. ulnar collateral -> post. ulnar recurrent
+inf. ulnar collateral -> ant. ulnar recurrent

-deep brachial artery -> radial and interosseous artery
+radial collateral artery -> radial recurrent artery
+middle collateral artery -> interosseous recurrent artery

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

What is the common flexor and extensor origin?

A

flexor origin: medial epicondyle

extensor: lateral epicondyle

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

What is the arterial supply to the arm?

A
  • > from brachial artery
  • sup. ulnar collateral
  • inf. ulnar collateral
  • > from deep brachial artery
  • radial collateral
  • middle collateral
  • > from ulnar artery
  • ant. ulnar recurrent
  • post. ulnar recurrent
  • > from radial artery
  • radial recurrent
  • > interosseous arteries
  • recurrent interosseous
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the two blood supplies to the anterior hand and what artery supplies each?

A
  • superficial palmar arch -> ulnar artery

- deep palmar arch -> radial artery

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

superficial palmar arch

A

ulnar -> superficial -> common digital arteries -> proper palmar digital arteries

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

deep palmar arch

A

radial -> ulnar (contributes) -> princeps pollicis artery -> radialis indicis artery

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

Origin, insertion, actions, blood supply, and innervation of PRONATOR TERES

A

origin: coronoid process
insertion: middle of lateral surface of radius
actions: pronates and flexes forearm at elbow
innervation: median nerve

17
Q

Origin, insertion, actions, blood supply, and innervation of FLEXOR CARPI RADIALIS

A

origin: medial epicondyle
insertion: base of 2nd metacarpal
action: flexes and abducts
innervation: median nerve

18
Q

Origin, insertion, actions, blood supply, and innervation of PALMARIS LONGUS

A

origin: medial epicondyle
insertion: flexor retinaculum, continuous with palmar aponeurosis
action: flexes hand at wrist
innervation: median nerve
* can be absent

19
Q

Origin, insertion, actions, blood supply, and innervation of FLEXOR CARPI ULNARIS

A

origin: medial epicondyle
insertion: pisiform, hook of hamate, 5th metacarpal
action: flexes adn adducts hand at wrist
innervation: ulnar nerve

20
Q

Origin, insertion, actions, blood supply, and innervation of FLEXOR DIGITORUM SUPERFICIALIS

A

origin: medial epicondyle, superior 1/2 of ant. border of radius
insertion: shafts of middle phalanges of medial 4 digits
actions: flexes middle phalanges at IP joint, flexes proximal phalanges at MP joint
innervation: median nerve

21
Q

Origin, insertion, actions, blood supply, and innervation of FLEXOR DIGITORUM PROFUNDUS

A

origin: proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane
insertion: bases of distal phalanges of 2nd-5th fingers
action: flexes distal phalanges at IP joint
innervation: median and ulnar nerves

22
Q

Origin, insertion, actions, blood supply, and innervation of FLEXOR POLLICIS LONGUS

A

origin: ant. surface of radius and interosseous membrane
insertion: base of distal phalanx of thumb
action: flexes thumb
innervation: median nerve via ant. interosseous nerve

23
Q

Origin, insertion, actions, blood supply, and innervation of PRONATOR QUADRATUS

A

origin: distal 1/4 of ant. surface of ulna
insertion: distal 1/4 of ant. of radius
actions: pronates forearm, binds radius and ulna together
innervation: median via ant. interosseous nerve

24
Q

Origin, insertion, actions, blood supply, and innervation of BRACHIORADIALIS

A

origin: proximal 2/3 of supraepicondylar ridge of humerus
insertion: distal radius, proximal to styloid process
actions: flexes forearm when pronates
innervation: radial nerve

25
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR CARPI RADIALIS LONGUS

A

origin: lateral supracondylar ridge of humerus
insertion: dorsal aspect of base of 2nd metacarpal
action: extend and abduct at wrist
innervation: radial nerve

26
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR CARPI RADIALIS BREVIS

A

origin: lateral epicondyle of humerus
insertion: dorsal aspect of base of 3rd metacarpal
action: extend and abduct hand at wrist
innervation: deep branch of radial nerve

27
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR DIGITORUM

A

origin: lateral epicondyle of humerus
insertion: extensor expansions of medial 4 fingers
actions: extends medial 4 fingers and MP joints and IP joints
innervation: post. interosseous nerve

28
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR DIGITI MINIMI

A

origin: lateral epicondyle
insertion: extensor expansion of 5th finger
action: extends 5th finger at MP and IP joints
innervation: post. interosseous nerve

29
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR CARPI ULNARIS

A

origin: lateral epicondyle and post. border of ulna
insertion: dorsal aspect of base of 5th metacarpal
actions: extends and adducts hand at wrist
innervation: post. interosseous nerve

30
Q

What are the flexors of the brachium?

A
  • bicep brachii
  • brachialis
  • coracobrachialis
31
Q

What are the “outcropping muscles?”

A
  • abducter pollicis longus
  • extensor pollicis longus
  • extensor pollicis brevis
32
Q

Origin, insertion, actions, blood supply, and innervation of SUPINATOR

A

origin: later epicondyle, radial collateral, annular ligament, adn ulnar crest
insertion: proximal 1/3 radius
actions: supinates
innervation: deep branch of radial nerve

33
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR INDICIS

A

origin: post. surface of distal 1/3 of ulna and interosseous membrane
insertion: extensor expansion of 2nd finger
actions: independent extension of 2nd finger, helps with wrist extension
innervation: post. interosseous nerve

34
Q

Origin, insertion, actions, blood supply, and innervation of ABDUCTOR POLLICIS LONGUS

A

origin: post. surface of proximal 1/2 of ulna and radius, interosseous membrane
insertion: base of 1st metacarpal
actions: abducts thumb and extends at carpometacarpal joint
innervation: Post. interosseous nerve

35
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR POLLICIS BREVIS

A

origin: post. surface of distal 1/3 of radius, interosseous membrane
insertion: dorsal aspect of proximal phalanx of thumb
actions: extends proximal phalanx of thumb at MP joint, extends carpometacarpal joint
innervation: post. interosseous nerve

36
Q

Origin, insertion, actions, blood supply, and innervation of EXTENSOR POLLICIS LONGUS

A

origin: post. surface of middle 1/3 of ulna, interosseous membrane
insertion: dorsal aspect of base of distal phalanx of thumb
actions: extends distal phalanx of thumb at IP joint and extends MP and carpometacarpal joints
innervation: post. interosseous nerve

37
Q

What happens with a radial nerve injury?

A
  • occurs when person sustains fracture to the humeral shaft due to relationship with spiral groove
  • results in paralysis of extensors of wrist and fingers results in inability to extend and flexors take over resulting in a “wrist drop”

Anatomy I- Erin (11 decks)

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