Elbow, Wrist And Hand Flashcards
What makes up the upper limb (joints)
30 bones
Shoulder
Elbow
Radioulna joints
Wrist
Carpo-metacarpal
Metacarpophalangeal
Interphalangeal
What is a tuberosity
Larger flatter bony prominence
What are the anatomical land marks of the elbow
Radial tuberosity
Ulna tuberosity
Trochlea notch of the ulna (where the humerus sits)
Coracoid process - top of the trochlea notch
Olecranon process of the ulna (point of the elbow)
What allows the radius to rotate
Anular ligament
Explain the radioulna joint
Pivot joint
Allows pronation and supination
By anular ligament
What are the anterior muscles of the proximal radioulna joint
Biceps brachii
Brachialis
Brachioradialis
Pronator teres
Pronator quadratus
What are the posterior muscles of the proximal radioulna joints
Triceps brachi
Anconeus
Supinator
Where do biceps brachii insert and originate
O scapula coracoid process and supragkenoid tubercle
I radial tuberosity
What is the action of the biceps brachii at the radioulna joint
Supination
What action does the brachialis perform
Flexion
(Deep to the biceps brachii)
What is the role of the brachioradialis
Flexion
Pronation and supination back to the neutral position
What muscle causes pronation
Pronator teres
Pronator quadratus
Where do triceps brachii insert and originate
O - scapula and humerus
I - Olecranon process of ulna
What action does the triceps brachii perform at the elbow?
Extend
What action does the triceps brachii perform at the shoulder
Extension
Adduction
Horizontal abduction
What does the anconeus do
Extension
Very small muscle in elbow joint
What do the supinators do
Supination
What are the wrist joints
Radio carpal
Condyloid joint, ellipsoid joints between radius and scaphoid and lunate
Carpometacarpal joint of the thumb, saddle
What muscles do wrist flexion
Wrist flexors
What muscles allow phalanges flexion
Flexor digitorum superfiscialis
And profundus
Where do wrist flexors originate and insert
O anteromedially at forearm
I anteriorly at the hand
Where do wrist extensors insert and originate
O posterolaterally ay forearm
I posterioly at the hand
What is tennis elbow
Overuse at wrist
Injury of supinators and extensors where they attach to the humerus
Repetition trust extension and supination
