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Knes 259 ANATOMY AND PHYSIOLOGY I > lesson 20 > Flashcards

lesson 20 Flashcards

1
Q
A
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3
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4
Q

what are the four heads of the quadriceps femoris?
and where do they all insert on?

A

rectus femoris
vastus lateralis
vastus medialis
vastus intermedius

inserts on the TIBIAL TUBEROSITY indirectly via patellar ligament

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5
Q

What are the attachment sites/ORIGIN of rectus femoris?

A

Anterior inferior iliac spine

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6
Q

What are the attachment site/origin for vastus lateralis?

A

lateral lip of linea aspera

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7
Q

what is the attachment site/ origin for vastus medialis?

A

medial lip of linea aspera

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8
Q

what is the attachment site/origin of vastus intermedius ?

A

anterior surface of shaft of femur

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9
Q

Which joint or muscle does the rectus femoris cross?

A
  • hip joint
  • knee joint
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10
Q

what joint does vastus lateralis cross?

A

knee joint

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11
Q

what joint is the vastus medialis crossing?

A

knee joint

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12
Q

what joint is the vastus intermedius crossing?

A

knee joint

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13
Q

what is the class and type of the hip joint

A

synovial ball-and-socket

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14
Q

What is the class and type of the knee joint?

A

synovial (modified hinge)

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15
Q

what are the movements permitted by the hip joint?

A
  • flexion/extension
    -abduction/adduction
    -medial/lateral rotation
    -circumduction
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16
Q

what is the movements permitted by the knee joint?

A

-flexion/extension

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17
Q

The intrinsic shoulder muscles function to cause movement at the glenohumeral joint (shoulder joint), how many planes can this joint permit action within?

and what actions can the glenohumeral joint permit?

A
  1. saggital
  2. frontal
  3. transverse
  4. sagittal- flexion/extension
  5. frontal- abduction/adduction
  6. transverse- medial/lateral rotation

ALL of these things this means it also circumduction

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18
Q

what are the six intrinsic shoulder muscles or also known as the scapulohumeral muscles?

A
  1. deltoid
  2. Teres major

ROTATOR CUFF MUSCLES?
3. supraspinatus
4. infraspinatus
5. teres minor
6. subscapularis - CANT SEE ON THE BACK SIDE

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19
Q

Where does the deltoid originate and insert?

A

Its origin is the bony horseshoe:
– lateral 1/3 of the clavicle
-acromion
- the spine of the scapula

Insertion:
deltoid tuberosity of humerus

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20
Q

What are the three heads that the deltoid is divided into? and what are the actions of each one? and what nevrve innervated this muscle?

A
  • anterior (clavicular) part
  • Middle (acromial) part
  • posterior (spinal) part

overall it resists inferior displacement of the humerus
stabilize the glenohumeral joint

axillary nerve

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21
Q

where does teres major originate and insert from?

A

Originates:
The lateral border of the scapula, inferior aspect

Insertion:
the medial lip of the intertubercular groove

back to front muscle originates posteriorly inserted anteriorly

22
Q

where does latissimus dorsi insert?

A

floor of the intertubercular groove

23
Q

what is the actions of the teres major? and what nerve innervated this muscle?

A

stabilize the glenohumeral joint
- adduction of the humerus
- medial rotation of the humerus
- extension of humerus from a flexed position

innervation:
lower subscapular nerve

24
Q
A
25
Q
A
26
Q

where does the rotator cuff muscle supraspinatus originate and insert from?

A

Originates:
supraspinous fossa

inserts :
on the superior facet of greater tubercle

27
Q

What are the actions of the supraspinatus muscle (top to top muscle)? and what nerve innervates this muscle?

A

abduction of the humerus
stabilize the glenohumeral joint

suprascapular nerve

this is the only muscle that has no rotation

28
Q

where the the rotator cuff muscle : infraspinatus originate and insert from?

A

orginates from the infraspinous fossa

insertes: from the middle facet of the greater tubercle

29
Q

what are the actions and what nerve innervated the infraspinatus muscle?

A

actions:
lateral rotation of the humerus
-stabilize the glenohumeral joint

Innervation:
suprascapular nerve

30
Q

where does the rotator cuff muscle: teres minor originate and insert from?

A

originates:
lateral border of the scapula

and inserts: inferior facet of greater tubercle

31
Q

what are the actions and what nerve innervates teres minor?

A

actions:
lateral rotation of the humerus
stabilize glenohumeral joint

innervation:
axillary nerve

32
Q

where does the rotator cuff muscle: subscapularis originate and insert from?

A

originates: from the subscapular fossa and inserts from the lesser tubercle of humerus

33
Q

what are the actions and what nerve innervates the subscapularis muscle (front to front)?

A

medial rotation of the humerus
stabilize glenohumeral joint

it innervated:
upper subscapular nerve
lower subscapular nerve

34
Q

what are the key things to note about the suprascapular artery and the suprascapular nerve?

A

the artery is above the foramin where the scapular notch is
and the vein travels through the foramin

35
Q

what are the different compartments of the arm?

A
36
Q

what are the two heads of the biceps ?

A

long head
short head

37
Q

what is the bicipital aponeurosis

A
  • anchor the muscle to a site but rather than a osteological site it anchors it to fascia
38
Q

where does the long head, and the short head of the biceps brachii originate from and insert?

A

LH: supraglenoid tubercle of the scapula
SH: Coracoid process of the scapula

Insertion:
-radial tuberosity
- deep fascia of forearm

39
Q

what are the actions of the biceps brachii the long head and short head, and what is the innervation?

A
  • flexion at the glenohumeral (shoulder) joint
    -stabilizes glenohumeral (shoulder) joint
  • supination of the forearm
  • flexion at the elbow joint (when in supinated position)

Innervation:
musculocutaneous nerve

39
Q

where do you find coracobrachialis?

A

deep to the biceps it attached to the short head of the brachii

40
Q

Where is the origin and the insertion of coracobrachialis?

A

origin the coracoid process of scapula

and the insertion:
- middle 1/3 of humerus, medial aspect

41
Q

what are the action and what innervated the coracobrachialis?

A

stabilize glenohumeral (shoulder joint)

flexion at the glenohumeral (shoulder) joint

flexion at the glenohumeral (shoulder) joint
adduction at the glenohumeral (shoulder) joint

innervation: musculocutaneous nerve

42
Q

where the the origin and the insertion of brachialis?

A

origin:
Distal half of humerus, anterior surface

Insertion:
coronoid process of ulna
ulnar tuberosity

43
Q

what are the actions and the innervation of brachialis?

A

flexion at the elbow joint
innervation: musculocutaneous nerve

44
Q

what is the pathway of the musculocutaneous nerve?

A
  1. pierce through coracobrachialis
    innervates that muscle
  2. travels deep into the biceps brachii
    and superficial to brachialis
  3. exits lateral to distal aspect of biceps brachii
  4. terminates at the lateral cutaneous nerve of the forearm
45
Q

the posterior compartment of the arm consists of what?

A

triceps brachii
-three heads

long head
lateral head
medial head

46
Q

where is the origin of the long head, the lateral head, and the medial head and what is the insertion site for all of these?

A

Long head: infraglenoid tubercle of scapula
lateral head: posterior surface of the humerus, superior to the radial groove

medial head: posterior surface of the humerus, inferior to the radial groove

insertion: olecranon process of ulna

47
Q

what are the actions and the innervation of triceps brachii, long head?

A

extension at the elbow joint

long head:
Extension at the shoulder joint
-stabilize the shoulder joint

innervation: radial nerve

48
Q
A
49
Q

what is the route of the axillary nerve?

A

in the quadrangular space it is bounded by:

teres minor- superiorly
teres major- inferiorly
triceps brachii: long head- medially
triceps brachii: lateral head - laterally

it innervates: DELTOID and Teres major

50
Q

what is the route of the radial nerve but also tell me what is the muscular boundaries: triangular interval

A

triangular interval:
bounded by:
teres major- superiorly
triceps brachii: long head-medially
triceps brachii: lateral head- laterally

innervates the posterior (extensor) compartment of the arm:
- triceps brachii

Knes 259 ANATOMY AND PHYSIOLOGY I (19 decks)

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