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Gross Anatomy & Kinesiology Lecture > Chpt. 5 > Flashcards

Chpt. 5 Flashcards

1
Q

Shoulder joint: The price of mobility is reduced ____

A

stability

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2
Q

The ball is a lot larger than socket for what reason?

A

mobility

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3
Q

Two reasons for instability problems in the shoulder joint

A
  • rotator cuff impingement

- subluxations & dislocations

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4
Q

What is the main function for the Rotator Cuff

A

keep the ball and socket in place

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5
Q

What is the difference between a subluxation and dislocation

A

subluxation- the ball is just moved ‘out of place’

dislocation- ball is completely out of the socket

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6
Q

What are the 3 bones that act as attachment for the shoulder joint muscles

A
  • scapula
  • clavicle
  • humerus
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7
Q

Where is the subscapular fossa on the scapula?

A

The big curve, inside of the scapula

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8
Q

What are the (5) humeral landmarks

A
  • head tubercle
  • greater tubercle
  • leasser tubercle
  • intertubercular/ bicipital groove
  • **deltoid tuberosity
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9
Q

The glenohumeral joint is an ____ (ball and socket) joint

A

ENARTHRODIAL

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10
Q

What is a major function of the Glenoid Labrum

A

the socket slight enhances stability

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11
Q

*What is the S.L.A.P lesion?

A

tear of labrum

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12
Q

What is the main function of the Glenohumeral ligaments

A

provide stability

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13
Q

3 reasons why to use a goiniometer

A

It’s important if somebody needs to know if there is SUBJECTIVE change happening

  1. PATIENTS: needs to know if they are improving
  2. 3RD party payer: ex. workers compensation need to know
  3. SURGENS
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14
Q

What is the degree of the Glenohumeral joint for ABDUCTION

A

90-95 degrees

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15
Q

What is the degree of the Glenohumeral joint for EXTENSION

A

40-60 degrees

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16
Q

What is the degree of the Glenohumeral joint for FLEXION

A

90-100

17
Q

What is the degree of the Glenohumeral joint for INTERNAL AND EXTERNAL ROTATION

A

70-90

18
Q

2 reasons why Lateral rotators are WEAK muscles

A
  • laxity of ligamentous structures

- lack of strength and endurance in muscles

19
Q

Why are rotator cuffs frequently injured

A

there is not much space, and it is therefore easily pinched

20
Q

What are the (4) muscles that attach to the rotator cuffs

A
  • subscapularis
  • supraspinatous
  • infrapinatous
  • teres minor muslces
21
Q

What is the main function of a rotator cuff?

A

to keep the humeral head within the glenoid fossa (the ball stable with the socket)

22
Q

What are intrinsic and extrinsic glenohumeral muscles, and give an example of each

A

Intrinsic: small, short muscles ex=deltoid
Extrinsic: big muscles
ex=pectoralis major

23
Q

Which plexus are all shoulder joint muscle innervated from?

A

Brachial plexus

24
Q

Identify the nerves that supply this muscle:

  • Pectoralis major (clavicular head)
  • Pectoralis major (sternal head)
  • Latissimus dorsi
A
  • Lateral Pectoral:
  • Medial pectoral:
  • Thoracodorsal:
25
Q

Where does this nerve arise from and what is the muscles it provides for:

  • Lower subscapular nerve:
  • Suprascapular nerve:
A
  • Subscapularis, Teres major

- Supraspinatus, Infraspinatious

26
Q

Where does this nerve arise from and what is the muscle it provides for?
-Musculocutaneous nerve:

A
  • Coracobrachialis (corachoid process for origin)
27
Q

What is the O.I.N.A for Pectoralis Major?

A

O: clavicle+ costal cartilage 1st 6 ribs
I: Lateral lip of bicipital groove
N: Medial lateral pectoral nerve
A: Internal rotation, adduction, horizontal adduction (bring it across horizontally)

28
Q

DONT NEED TO KNOW:
What is an exercise for PECTORALIS MAJOR?

Exercise:
Therband:
Free weight:
Stretch:

A

?Ex: dumbell exercise/ Push up
Th: bringing it diagonally across body
?F:lying supine holding onto dumbells
S: “door-way stretch” against door

29
Q

What is the O.I.N.A for Latissimus Dorsi?

A

*O: Postilium, sacrum-> T6
I: bicipital groove
N: Thoracodorsol nerve
A: Adduction, Internal rotation, Extension

30
Q

DONT NEED TO KNOW:
What is an exercise for Latissimis Dorsi?

Therband:
Free weight:
Stretch:

A

Th: chin up-style
F: bent over,extend arm and bring dumbell back past shoulder
S: “side bend” arm in air over head bring to one side, lean to side

31
Q

What is the O.I.N.A for Deltoid?

A 
O:  clavicle 
I: Deltoid tuberosity 
N: axilliary nerve
A: Anterior=flexion
Middle=abduction
Posterior=extension
32
Q

What is the freeweight and Therband exercise?

A

F- bent over: flexion, abduction, extension

T- under foot do flexion; side ways abduction; extension

33
Q

What is the O.I.N.A for Corachobrachialis?

Exercise??

A

O: coracoid process
I: middle 1/3 of humerus
N: Musculocutaneous nerve
A: Flexion

Gross Anatomy & Kinesiology Lecture (11 decks)

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