Upper limb Flashcards
How do you test Sterno-cleido-mastoid
turn the head to right or left against resistance (Nerve- spinal accessory, CN XI & C3,4)
How do you test Trapezius
raise both shoulders against resistance (Nerve- spinal accessory, CN XI C3,4)
How do you test Pectoralis major
adduct the abducted arm against resistance (Nerves-lateral & medial pectoral C5,6,7,8,T1)
How do you test Serratus anterior
Ask the patient to push their arm out (protract their shoulder) against your resistance whilst you palpate serratus anterior (Nerve-Long thoracic C5,6)
How do you test Teres major
adduct the arm against resistance. See and palpate the muscle in the posterior axillary fold (Nerve-Lower subscapular C5,6)
How do you test Latissimus dorsi
Abduct arm to 90 degrees, then adduct against resistance whilst the elbow is flexed. See and palpate the muscle in the posterior axillary fold (Nerve-Thoraco dorsal C6,7,8)
How do you test Deltoid
abduct the upper arm against resistance with the arm flexed to 90o at the elbow whilst you palpate the deltoid. (Nerve = axillary C5,6)
What condition arises from damage to the long thoracic nerve?
Winging of the scapula
What nerve roots does the triceps reflex test?
C7, 8
What are the boundaries of the anatomical snuffbox?
Medial border:
- Tendon of extensor pollicus longus
Lateral border:
- Tendon of extensor pollicus brevis
- Tendon of extensor abductor pollicus
Proximal border:
- Styloid process of radius
Floor:
- Scaphoid
- Trapezium
What movement is possible at the scapulo-thoracic joint?
- Protraction
- Retraction
- Elevation
- Depression
What movements are possible at the shoulder joint?
- Flexion/Extension
- Abduction/Adduction
- Lateral/Medial rotation
- Circumduction
What movements are possible at the elbow joint?
- Flexion/Extension
What movements are possible at the Proximal and distal radio-ulnar joints?
Pronation/supination
- Pronation = palm facing the pavement
- Supination = palm facing the sky
What movements are possible at the wrist joint?
- Flexion/Extension
- Ulnar/radial deviation
What movements are possible at the carpo-metacarpal joints of the thumb and other fingers?
- 1st joint (thumb) = flexion/etension abduction/adduction opposition/reposition
- 2nd and 3rd = effectively no movement possible
- 4th and 5th =
What movements are possible at the metacarpo-phalangeal joints?
- Mainly flexion
To a limited extent can also:
- Extend
- Radial deviate
- Ulnar deviate
- Circumduct
Why is the wrist joint called the radiocarpal joint?
- Only the radius articulates with the carpal bones (scaphoid, lunate, triquetrum)
- The ulnar is separated from the carpal bones by the articular disc that stabilises the distal radio-ulnar joint during pronation
What is the carpal tunnel formed of?
Carpal bones
Flexor retinaculum
What are the contents of the carpal tunnel?
- 4 tendons of the flexor digitorium profundus
- 4 tendons of the flexor digitorium superficialis
- The 1 tendon of flexor pollicus longus
- Median nerve
What movements are possible at the interphalangeal joints?
Flexion (more extensive)
Extension
What nerve and nerve roots innervate serratus anterior?
Long thoracic
C5,6
What is the action of pectoralis major?
Acts on the humerus to:
- Adducts
- Flex
- Medially rotate
What nerve and nerve roots innervate latissimus dorsi?
Thoraco dorsal
C6,7,8
What are the functions of latissimus dorsi?
Acts on the upper limb to:
- Extend
- Adduct
- Medially rotate
What are the parts of the trapezius muscle?
From superior to inferior:
- Descending
- Transverse
- Ascending
What are the actions of the trapezius?
Acts on the scapula to:
- Elevate and rotate
- Retract
- Depress
Which nerve and its spinal roots innervate the trapezius muscle?
spinal accessory, CN XI
C3,4