Anatomy: The Upper Limb Flashcards

1
Q

What makes up the shoulder girdle

A
clavicle
scapula
sternoclavicular joint
acromioclavicular joint
glenohumeral joint
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2
Q

What is the function of the labrum

A

increases capture of the humeral head and increases stability

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3
Q

name the rotator cuff muscles

A

supraspinatous
infraspinatous
teres minor
subscapularis

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4
Q

Where is the origin of the supraspinatous

A

supraspinous fossa

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5
Q

Where is the insertion of the supraspinatous

A

the greater tuberosity of the humerous

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6
Q

What innervates the supraspinatous

A

the suprascapular nerve (C5/C6)

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7
Q

What is the function of the supraspinatous

A

abducts the arm

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8
Q

Name the following of the infraspinatous:

  • origin
  • insertion
  • innervation
  • function
A
  • infraspinous fossa
  • greater tuberosity of the humerous
  • suprascapular nerve
  • externally rotates the arm
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9
Q

Name the following about the teres major:

  • origin
  • insertion
  • innervation
  • function
A

dorsal surface of lateral border of scapula

  • greater tuberosityof the humerous
  • axillary (C5 and 6)
  • externally rotates arm
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10
Q

Subscapularis:

  • origin
  • insertion
  • innercaion
  • function
A
  • anterior surface of scapula
  • lesser tuberosity of humerous
  • upper and lower subscapular nerve (C5/6)
  • internally rotates arm
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11
Q

Deltoid:

A

Origin-clavicle, acromion, spine of scapula
Insertion- deltoid tuberosity of humerous
Innervation- axillary
- Adbucts the arm

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12
Q

Where is the origin of the short head of the biceps brachii

A

coracoid process

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13
Q

Where is the origin of the long head of the biceps brachii

A

labrum/glenoid

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14
Q

Where does the biceps insert

A

tuberosity of the radius

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15
Q

What innervates the biceps

A

musculocutaneous nerve

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16
Q

What is the function of the biceps

A

flexes elbow

supinates forearm

17
Q

where is the site of insertion for all of the extensor muscles of the forearm

A

lateral epicondy

18
Q

Which compartment is the extensor compartment of the forearm in

A

the dorsal compartment

19
Q

Where is the site of insertion for all of the flexor muscles of the forearm

A

the medial epicondyle of the humerous

20
Q

which compartment is the flexor muscles of the forearm

A

the volar compartment

21
Q

Name the carpal bones

A

From thumb- Scaphoid, Lunate, Triquetral, Pisiform

From thumb- trapezium , trapezius, capitate, hamate

22
Q

What muscles move the thumb

A

the thenar muscles

23
Q

Name the three muscles of the thumb

A
  1. Opponens pollicis
  2. Flexor pollicis brevis
  3. Abductor Pollucis brevis
24
Q

What nerve supplies the muscles of the thumb

25
What is the name of the muscles of the little finger
hypothenar muscles
26
Name the two hypothenar muscles
the abductor digiti minimi | Flexor digiti minimi brevis
27
What innervates the hypothenar muscles
the ulnar nerve
28
What else does the ulnar nerve innervate in the hand
the interossei muscles
29
What is the function of the dorsal interossei
ABducts the fingers
30
What is the function of the palmar interossei
Adducts the fingers
31
What innervates the lateral lumbrical muscles
median
32
what innevates the medial lumbrical muscles
ulnar