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ANA 201 > Muscles Of Upper Limb 1 > Flashcards

Muscles Of Upper Limb 1 Flashcards

1
Q

most superficial muscle in the pectoral region is???

A

Pectoralis major

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2
Q

PECTORALIS MAJOR

  • broad or narrow?
  • ___ shaped
  • superficial or deep?
  • ___ heads
A

Broad

fan

Superficial

2

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3
Q

List the heads of the pectoralis major

A

sternocoastal head

-clavicular head

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4
Q

Pectoralis major

Clavicular head – originates from the _____ surface of the ______

Sternocostal head – originates from the ___ surface of the sternum, the _______ and the aponeurosis of the ______ muscle.

A

anterior; medial clavicle.

anterior

superior six costal cartilages

external oblique

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5
Q

Pectoralis major

INSERTION: _____ of ____

A

intertubercular sulcus

humerus

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6
Q

Pectoralis major

ACTION: (1)____ and ______ UL and draws scapula _____
(2)clavicular head acts individually to ___ UL

A

adducts

medically rotates

anteroninferiorly

flex

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7
Q

Pectoralis major

INNERVATION: _____ pectoral nerves and _____ pectoral nerves

A

lateral C5-C7

medial C8-T1

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8
Q

pectoralis minor lies_____ the pectoralis major.

A

underneath

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9
Q

Pectoralis minor

ORIGIN: _____ surface of ____ from _ to _

A

Anterior

ribs

3-5

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10
Q

Pectoralis minor

INSERTION: _____ process of ____

A

coracoid

scapula

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11
Q

Pectoralis minor

ACTION: stabilize ____ by drawing it ______ against the ____

A

scapula

anteroinferiorly

Thoracic cage

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12
Q

Pectoralis minor

INNERVATION : _____ nerve
C_ to __

On the brachial plexus, anterior or posterior ?

A

medial pectoral

C8-T1

Anterior

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13
Q

The serratus anterior is located more _____ in the chest wall compared to other pectoral region muscles

A

laterally

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14
Q

Serratus anterior

ORIGIN: (medial or lateral?) part of ____ from - to -

A

Lateral

ribs 1-8

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15
Q

Serratus anterior

INSERTION: ____ face/_____border of the ____

A

coastal

medial

scapula

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16
Q

Serratus anterior

ACTION: (1) _____ the scapula allowing it to be raised ______ degrees
(2)holds the _____ against the rib cage

A

rotates

over 90

scapula

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17
Q

Serratus anterior

INNERVATION : _____ nerve

On the brachial plexus, it’s

Anterior or posterior roots?

From ___ to ___

A

long thoracic

Posterior

C5,C6,C7

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18
Q

subclavius is (small or large ?) muscle, which is located directly underneath the ____, running (vertically or horizontally?) .

A

Small

clavicle

Horizontally

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19
Q

Subclavius muscle affords some ______ to the underlying neurovascular structures (e.g in cases of clavicular fracture or other trauma).

A

minor protection

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20
Q

Subclavius

ORIGIN : ____ border of the junction of the ____ and _____

A

superior

first rib

it’s coastal cartilage

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21
Q

Subclavius

INSERTION: ____ surface of ____ of _____

A

inferior

middle

clavicle

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22
Q

Subclavius

ACTION: ____ and _____ the clavicle

A

anchors and depresses

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23
Q

Subclavius

INNERVATION : ____

On the brachial plexus, anterior or posterior??

___ and ___ roots

A

nerve to subclavius

Anterior

C5 and C6

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24
Q

Winging of the Scapula
If the _____ nerve is damaged and the serratus anterior therefore paralysed), a specific clinical sign is produced.

In cases such as this, the scapula is no longer held against the ____ and ____ out of the _____. It is said to have a ‘ ____’ appearance.

A

long thoracic

ribcage

protrudes

Back

winged

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25
Q

Long thoracic nerve palsy is thought to most commonly occur from _____ injuries, where the upper limb is ____ violently.

A

traction

stretched

26
Q

The upper arm is located between the ____ joint and ____ joint.

A

shoulder

elbow

27
Q

Upper arm contains ___ muscles

_____ in the anterior compartment and ___ in the posterior compartment

A

four

three

one

28
Q

Muscles of the upper arm anterior compartment

____
_____
____

A

biceps brachii, brachialis, coracobrachialis

29
Q

Muscles of the upper arm posterior compartment

???

A

triceps brachii

30
Q

Arterial supply to the anterior compartment of the upper arm is via muscular branches of the ____ artery

A

brachial

31
Q

Anterior compartment of upper arm muscles are all innervated by the ______ nerve.

On the brachial plexus, anterior or posterior??

Which roots??

A

musculocutaneous

Anterior

C5,C6,C7

32
Q

Biceps brachii muscle has - heads

Triceps brachii muscle has - heads

A

2

3

33
Q

the majority of the muscle mass of biceps brachii is located (anteriorly or posteriorly ?) to the ____

A

Anteriorly

humerus

34
Q

Biceps brachii attached to the humerus

T/F

A

F

it has no attachment to the bone itself.

35
Q

As the tendon of biceps brachii enters the forearm, a connective tissue sheet is given off – the ______

A

bicipital aponeurosis

36
Q

bicipital aponeurosis forms the ____ of the cubital fossa and blends with the _____ of the anterior forearm.

A

roof

deep fascia

37
Q

Biceps brachii

ORIGIN:
long head : _____ of _____

short head : ____ of ____

A

supreglenoid tubercle

scapula

coracoid process

scapula

38
Q

Which is more lateral?

Short or long head of biceps brachii

A

Long head

39
Q

Biceps brachii

INSERTION: ______

A

radial tuberosity

40
Q

Biceps brachii

ACTION:

_____ of forearm

_____ arm at ____ and ____

A

supination

flexes

elbow and shoulder

41
Q

The brachialis muscle lies (superficial or deep?) to the biceps brachii

A

Deep

42
Q

Brachialis muscle is found more _____ than the other muscles of the arm.

A

distally

43
Q

Brachialis muscle forms the ____ of the cubital fossa.

A

floor

44
Q

Brachialis muscle

ORIGIN: ____ and _____ of _____

A

medial and lateral shaft

humerus

45
Q

Brachialis muscle

INSERTION: ______ just distal to the _____ joint

A

ulna tuberosity

elbow

46
Q

Brachialis muscle

ACTION: _____ at the ____

A

flexion

elbow

47
Q

Brachialis muscle

INNERVATION : _____ nerve and ____ nerve

A

musculocutaneous

radial

48
Q

Radial nerve

On the brachial plexus
Anterior or posterior

Which roots?

A

Posterior

C6,7,8

49
Q

The coracobrachialis muscle lies ____ to the biceps brachii in the arm.

A

deep

50
Q

Coracobrachialis

ORIGIN: _____ of _____

A

coracoid process

scapula

51
Q

Coracobrachialis

INSERTION: _____ side of humerus at the level of _____

A

medial

deltoid tubercle

52
Q

Coracobrachialis

ACTION: ____ of the arm at the ___ and strong or weak?) __uction

A

flexion

shoulder

Weak

add

53
Q

A complete rupture of any tendon in the body is (common or rare?).

A

rare

54
Q

the ____ head of the biceps brachii is one of the more common tendons to rupture.

This produces a characteristic sign when you _____ the elbow – a ___ where the muscle belly is, called the ‘ _____ Sign’. The patient would not notice much weakness in the upper limb due to the action of the ____ and ____ muscles.

A

long

Flex

bulge

Popeye

brachialis and supinator

55
Q

Triceps brachii

The _____ head lies deeper than the other two, which cover it.

A

medial

56
Q

Arterial supply to the posterior compartment of the upper arm is via the ______ artery.

A

profunda brachii

57
Q

The profunda brachii artery

  • also referred to as the ___ brachial artery
  • is the ___ and _____ branch of the brachial artery.
  • It originates from the ____ portion of the brachial artery
A

deep

First

largest

posterior

58
Q

TRICEPS BRACHII

ORIGIN:

long head- ______

medial head- on the ______, (superior or inferior?) to the ____

lateral head- on the _____ , (superior or inferior?) to the ____

A

infraglenoid tubercle

humerus

Inferior

radial groove

humerus

Superior; radial groove

59
Q

Triceps brachii

INSERTION : _____ of ____

A

olecranon of ulna

60
Q

Triceps brachii

ACTION: _____ of the arm at the ____

A

extension

elbow

61
Q

Triceps brachii

INNERVATION : _____ nerve

On the brachial plexus,
Anterior or posterior?

Which roots?

A

radial

Posterior

C6,7,8

62
Q

In some individuals, the long head of the triceps brachii is innervated by the _____ nerve.

A

axillary

ANA 201 (34 decks)

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