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PTA II (Lecture) > ANATOMY & KINESOLOGY Chpt. 6. Elobw + Radioulnar Joints > Flashcards

ANATOMY & KINESOLOGY Chpt. 6. Elobw + Radioulnar Joints Flashcards

1
Q

-Ulna is much larger
__ than radius
-Radius is much larger __than ulna

A
  • proximally

- distally

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2
Q

What 3 bones serve as PROXIMAL attachments for muscles that pronate & supinate the radioulnar joints?

A
  • Scapula
  • humerus
  • ulna
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3
Q

DISTAL attachments of radioulnar joint muscles are located on __

A

-radius

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4
Q

What specifically fits into the ulna trochlear notch?

A

humeral trochlear

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5
Q

Stability in FLEXION is more dependant on:

A
  • lateral (radial collateral ligament)

- medial (ulnar collateral ligament)

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6
Q

Elbow moves from 0 degrees of extension to ___ to ___ degrees of flexion (Hyper extension is common!)

A

145 - 150

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7
Q

How does the Radioulnar joint work during pronation and supination?

A
  • Pivot-type joint
  • Radial head rotates around at proximal ulna
  • Distal radius rotates around distal ulna
  • ANNULAR LIGAMENT maintains radial head in its joint
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8
Q
  • You can Supinate __ - __ degrees from neutral

- Pronate __ -__ degrees from neutral

A

S: 80-90 degrees
P: 70-90

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9
Q

What do the Elbow FLEXOR consists of? 4

A
  • Biceps brachii
  • Brachialis
  • Brachioradialis
  • Weak assistance from Pronator teres
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10
Q

What do the Elbow EXTENSOR consists of? 2

A
  • Triceps brachii

- Anconeus provides assistance

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11
Q

What do the Radioulnar PRONATORS consist of? 3

A
  • Pronator teres
  • Pronator quadratus
  • Brachioradialis
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12
Q

What do the Radioulnar SUPINATORS consist of? 3

A
  • Biceps brachii
  • Supinator muscle
  • Brachioradialis
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13
Q

What is another term for Lateral epicondylitis and what is it associated with?

A

“Tennis Elbow”: with gripping and lifting activities

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14
Q

What is Medial epicondylitis? and how is it caused?

A

“Golfers Elbow”: repetitive movement

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15
Q

What are some Anterior: Primarily flexion & pronation muscles? 5

A
  • Biceps brachii
  • Brachialis
  • Brachioradialis
  • Pronator teres
  • Pronator quadratus
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16
Q

What are some Posterior:

Primarily extension & supination muscles? 3

A
  • Triceps brachii
  • Anconeus
  • Supinator
17
Q

All elbow & radioulnar joints muscles are innervated from: (3)

A

-Median, musculotaneous, and radial nerves of brachial plexus

18
Q

*RADIAL nerve - branches from C5, C6, C7, & C8: which muscles do they affect (4)

A
  • Triceps brachii
  • Brachioradialis
  • Supinator (posterior interosseous nerve)
  • Anconeus
  • Sensation to posterolateral arm, forearm, & hand
19
Q

*Median nerve - branches from C6- C7: which muscles do they affect? (3)

A
  • Pronator teres
  • Pronator quadratus (anterior interosseus nerve)
  • Sensation to palmar aspect of -hand & first three phalanges, palmar aspect of radial side of fourth finger, dorsal aspect of index & long fingers
20
Q

*Musculocutaneous nerve - branches from C5-C6: which muscles do they affect? (2)

A
  • Biceps brachii

- Brachialis

21
Q

What is the OINA for Biceps Brachii? (two origins)

A 
O: (Short head):Corachoid Process 
(Long Head): Supraglenoid tubercle
I: Radial Tuberosity
N: Musculocutaneous
A: Flexion/Supination
22
Q

DONT NEED TO KNOW:

What is a THERBAND and STRENGTHENING exercise for Biceps Brachii?

A

Th: standing on therband + curling

Strengthening: curl/flex elbow

23
Q

**What is the OINA for Brachialis?

A

**O: Distal half of humerus
**I: Corachoid process
N: Musculocutaneous
A: Flexion

24
Q

DONT NEED TO KNOW:

What is a THERBAND and STRENGTHENING exercise for Brachialis ?

A

Th: Stand on Th and curl in Pronation

Strength: Fully Pronate (hand down) and curl up (flex)

25
Q

What is the OINA for Brachioradialis?

A

**O: Supracondular ridge
I: Radial styloid
N: Radial Nerve
A: Flexion, and slightly Pronation/Supination (both at the same time)

26
Q

DONT NEED TO KNOW:

What is a THERBAND and STRENGTHENING exercise for Brachioradialis ?

A

TH: stand on TH and thumb up- side way curl ups

Strength: thumb up- side way curl up

27
Q

**What is the OINA for Triceps Brachii ? (3 origins/heads)

A

O: Long H: infraglenoid tubercle
Lateral H: proximal ½ of humerus
Medial H: distal 2/3 of humerus

I: Olecranon process of ulna
•N: radial nerve
A: Elbow extension

28
Q

DONT NEED TO KNOW:

What is a THERBAND and STRENGTHENING exercise for Triceps Brachii ?

A

Strength: tricep kick back (bent over extending elbow), behind head elbow extension
TH: hold therband in hand and bring it across/behind head and extend elbow

29
Q

What is the OINA for Anconeous?

A

O: Lateral Condyle (back of capitulum)
I: Posterior-Proximal ulna
N: Radial Nerve
A: elbow extension

30
Q

Which other muscle group is the same STRENGTHENING and THERBAND as Anconeous muscle?

A

Tricep Brachii

31
Q

??x What is the OINA for Supinator Muscle? (2 origins)

A

O: Lateral epicondyle, Posterior-proximal ulna
I: Proximal Radius
N: Radial Nerve
A: supinates

32
Q

DONT NEED TO KNOW:

What is a THERBAND and exercise for Supinator Muscle?

A

TH: supination (hold TH and supinate with other hand)

33
Q

What is the OINA for Pronator Teres Muscle?

A

O: Medial Epicondyle
I: Middle 1/3 of Radius
N: Median Nerve
A: Pronation

34
Q

DONT NEED TO KNOW:

What is a THERBAND and exercise for Pronator Teres Muscle?

A

TH: pronating against resistance

35
Q

What is the OINA for Pronator Quadratus Muscle?

*TH exercise same as Pronator teres

A

O: Distal ¼ of Ulna
I: Distal ¼ of radius
N: Median Nerve
A: Pronation

36
Q

What are the 3 Agonists for: ELBOW FLEXION (Bicep curls) ?

A
  • Biceps brachii
  • Brachialis
  • Brachioradialis
37
Q

What are the 2 Agonists for: ELBOW EXTENSION (push-ups) ?

A
  • Triceps brachii

- Anconeus

38
Q

What are the 3 Agonists for: RADIOULNAR PRONATION?

A
  • Pronator teres
  • Pronator quadratus
  • Brachioradialis
39
Q 
What are the 3 Agonists for: 
RADIOULNAR SUPINATION (tightening screw)?
A
  • Biceps brachii
  • Supinator muscle
  • Brachioradialis

PTA II (Lecture) (13 decks)

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