Anatomy of the forearm Flashcards
What are the msucles of the posterior compartment?
Triceps brachii
Anconeus
What are the three heads of the triceps?
Long head
Lateral head
Medial head
What are the five parts at the end of the distal humerous?
Medial epicondyle Coronoid fossa Lateral Epicondyle Trochlea Capitulum
What is the the medial epichondyle also known as?
the funny bone
What do most flexor muscles originate from?
Ulna nerve
Where do most extensor muscles originate from?
Lateral epicondyle
What does the head of the radius and radial notch form?
proximal radioulnar joint
What is the function of radial tuberosity?
Insertion of biceps muscle
What are the two joints at the elbow complex?
Elbow joint
Radioulnar joint`
What are the two articulations of the elbow joint?
Trochlear notch of the ulna and the trochea of the humerus
Head of the radius and the capitulum of the humerus
What forms the annular ligament?
Head of radius and radial notch of ulna
What is between the ulna and radius?
Interosseous membrane (fibrous)
What does the head of ulna and the ulnar notch of the radius form?
Anterior and posterior radio-ulnar ligaments
What is the proximal radioulnar articulation?
A synovial pivot joint between the circumference of the head of the radius and the ring formed by the radial notch of the ulna and the annular ligament
Upon supination what is the position of the supinator and biceps brachii?
Contracted
What is the tendon of the cubital fossa made of?
Dense regular CT
What does the bicipital aponeurosis cover?
Medial nerve and brachial artery
What is present in the cubital fossa?
Really Need Beer To Be At My Nicest
Radial
Nerve
posterior
Biceps
Tendons
Brachial
Artery
Medial
Nerve
What is another word for the forearm?
Antebrachium
What are the three layers of the anterior compartment of the antebrachium?
Superficial
Intermediate and Deep
Where is the point of origin of the flexors and what is it called?
Common flexor tendon on the medial epicondyle
What is the flexor carpi radailis innervated by?
median nerve
What are the four superficial muscles of the anterior compartment of the forearm?
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
What is the intermediate muscle of the anterior compartment of the forearm?
Flexor Digitorum Superficialis
What are the 3 deep muscles of the anterior compartment of the forearm?
Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus
What ligament forms the carpal tunnel?
Transverse carpal ligament
What are the two layers of the posterior compartment of the antebrachium?
Superficial and deep
What is the point of origin of the extensors and where is it?
The common extensor tendon on the lateral epicondyle
What are the six superficial muscles of the posterior surface of the antebrachium?
Brachioradialis Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Digitorum Extensor Digiti Minimi Extensor Carpi Ulnaris
What is the only flexor innervated by the radial nerve?
Brachioradialis
What nerve innervates the extensors of the forearm?
Radial nerve
What nerve innervates the flexors of the forearm?
median nerve but 1 1/2 innervated by ulnar nerve
What are the 5 deep muscles of the deep compartment of the antebrachium?
Supinator Abductor Pollicis Longus Extensor Pollicis Longus Extensor Pollicis Brevis Extensor Indicis
What are the two arteries of the antebrachium?
radial and ulnar artery
What innervates flexor carpi ulnaris?
ulnar nerve
