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Anatomy > Upper Limbs > Flashcards

Upper Limbs Flashcards

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1
Q

Motor and sensory innervation of the branchial plexus

A

ventral rami of C5 through T1 spinal nerves

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2
Q

Five major nerves arise from the branchial plexus

A
  1. Musculocutaneous
  2. Median
  3. Ulnar
  4. Axillary
  5. Radial
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3
Q

Anterior division fibers from the brachial plexus

A
  1. Musculocutaneous
  2. Median
  3. Ulnar
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4
Q

Posterior division fibers from the brachial plexus

A
  1. Axillary
  2. Radial
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5
Q

What innervates the anterior division fibers of the brachial plexus?

A

muscles in the anterior arm, anterior forearm and palmar

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6
Q

Main function of the anterior division fibers of the brachial plexus?

A

Flexors

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7
Q

What innervates the posterior division fibers of the brachial plexus?

A

muscles in the posterior arm and forearm

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8
Q

Main function of the posterior division fibers of the brachial plexus?

A

Extensors

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9
Q

Roots of the brachial plexus

A

5 (C5, C6, C7, C8 AND T1)

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10
Q

Trunks of the brachial plexus

A

3 (supperior, middle, inferior)

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11
Q

Divisions of the brachial plexus

A

6

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12
Q

Cords of the brachial plexus

A

3: Lateral, posterior, medial

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13
Q

Terminal branches of the brachial plexus

A

5: Musculocutaneous, axilar, radial, median, ulnar

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14
Q

Musculocutaneous roots

A

C5-C6

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15
Q

Median nerve roots

A

C5-T1

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16
Q

Ulnar nerve roots

A

C8-T1

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17
Q

Axillary nerve roots

A

C5-C6

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18
Q

Radial nerve roots

A

C5-T1

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19
Q

Muscles innervated by the musculocutaneous nerve

A

all the muscles of the anterior compartment of the arm

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20
Q

Nerve incharged of Flex elbow

A

Musculocutaneous nerve (C5-C6)

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21
Q

Nerve that innevates the hand thenar compartment, and central compartment (lumbricals digits 2-3)

A

Median nerve (C5-T1)

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22
Q

Nerve that innervates the anterior compartment of the forearm except 1 1/2 muscles innervated by the median nerve

A

Ulnar nerve (C8-T1)

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23
Q

Nerve that innervates the hand:
* Hypothenar compartment
* Central comaprtment: interossei muscles (palmar and dorsal)
* Lumbricals: Digits 4-5
* Adductor pollicis

A

Ulnar nerve (C8-T1)

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24
Q

Nerve that innervates the deltoid and teres minor

A

Axillary nerve (C5-C6)

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25
Nerve that innervates the **posterior compartment** muscles of the arm and forearm
Radial nerve (C5-T1)
26
Nerve incharged of Supination (biceps brachii)
Musculocutaneuos nerve (C5-T6)
27
Nerve that innevates the anterior compartment of the **Forearm** except for the flexor carpi ulnaris and the ulnar half of the flexor digitorium profundus.
Median nerve (C5-T1)
28
Nerve in charged of flex wrist and all digits
Median nerve (forearm)
29
Nerve in charged of pronation
Median nerve (forearm)
30
Nerve in charged of opposition of the thumb
Median nerve (hand)
31
Nerve in charged of flex metacarpophalangeal (MP) joints of digits 2-3
Median nerve (hand)
32
Nerve in charged of extend interphalangeal (PIPand DIP) joints of digits 2-3
Median nerve (hand)
33
Nerve in charged of flex wrist (weak) and digits 4-5
Ulnar nerve (C8-T1)
34
Nerve incharged of dorsal - abduct digits 2-5 (DAB)
ulnar nerve (hand, C8-T1)
35
Nerve incharged of palmar adduction digits 2-5 (PAD)
Ulnar nerve (hand)
36
Nerve incharged of assist lumbricals in MP flexion and IP extension digits 2-5
Ulnar nerve (hand)
37
Nerve incharged of flex MP and extend PIP and DIP joints of digits 4-5
ulnar nerve
38
Nerve incharged of adduct the thumb
ulnar nerve
39
Nerve incharged of abduct shoulder -15º-110º
Axillary nerve
40
Nerve incharged of lateral rotation of shoulder
axillary nerve
41
Nerve incharged of extend MP, wrist, and elbow
radial nerve (C5-T1)
42
Damage *root* nerves of the **Erb-duchenne Palsy (Waiter's Tip Syndrome)**
C5 - C6 (or the superior trunk)
43
Damage nerves of the **Erb-duchenne Palsy (Waiter's Tip Syndrome)**
Axillary Suprascapular Musculocutaneous
44
The **tuperior trunk **of the brachial plexus is formed by which roots?
C5-C6
45
The **middle trunk **of the brachial plexus is formed by which roots?
C7
46
The **Inferior trunk **of the brachial plexus is formed by which roots?
C8-T1
47
What paralysis is? * Arm medially rotated and adducted at the shoulder. * Forearm extended and pronated * Sign of waiters tip
Erb-duchenne Palsy
48
Damage *root* nerves of the **Klumpke's paralysis**
C8 and T1 (or inferior trunk)
49
Clinical characteristics of **Klumpke's paralysis**
**Forearm** supinated with wrist extended. **Hand** flexed at interphalangeal joint and hyperextended at metacarpophalangeal joing (claw hand)
50
Can Horner's syndrome may be part of the Kplumpke's paralysis? why?
Yes, because it's caused by a lession on T1
51
Dermatome paresthesia of a C5 root lession
Lateral borded of upper arm
52
Dermatome paresthesia of a C6 root lession
Laterak forearm to thumb
53
Dermatome paresthesia of a C8 root lession
Medial forearm to little finger
54
Dermatome paresthesia of a T1 root lession
Medial arm to elbox
55
Muscles affected by a C5 root lession
Deltod Rotator cuff Serratus Superior Biceps Brachioradiallis
56
Muscles affected by a C6 root lession
Biceps Brachioradialis Brachialis Supinator
57
Muscles affected by a C8 root lession
Finger flexors Wrist flexor Hand muscles
58
Muscles affected by a T1 root lession
Hand muscles
59
Reflex test on a C5 root lession
None
60
Reflex test on a C6 root lession
Biceps tendon
61
Reflex test on a C8 root lession
None
62
Reflex test on a T1 root lession
None
63
Causes of lession on C5
Upper trunk compression
64
Causes of lession on C6
Upper trunk compression
65
Causes of lession on C8
Lower trunk compression
66
Causes of lession on T1
Lower trunk compression

Anatomy (5 decks)

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