Elbow Joint Flashcards
ELBOW JOINT
-is a _____ type of joint
synovial
HUMERO ULNAR
Between the _____ of the humerus and ______ of the ulna
-______ joint
trochlea
trochlea notch
an hinge
HUMERO RADIAL
- between the ____ of the humerus and ____ of radius
- _______ joint
capitulum
head
ball and socket
SUPERIOR RADIOULNAR
-between the ____ of the ulna and the ____ of the radius which is held in place by the (delicate or tough?) ______ ligament
radial notch
head
tough annular
Fossae above the trochlea & capitulum admit the ____ of the ulna & the ____, respectively, during full (flexion or extension?)
Olecranon fossa admits the _____ during full elbow (flexion or extension
coronoid process
radial head
Flexion
olecranon process
Capsule: Is lax at the ____ & ____ to permit ___
front; behind
full elbow flexion & extension
The non-articular face s of the elbow joint;,? medial & lateral epicondyles are ______
extracapsular
Ligaments of elbow joint
: the capsule is strengthened Medially & Laterally by ______ ligaments
collateral
FIBROUS CAPSULE
- ____ at the front and back but ______ at the sides by ligaments
- capsule is attached proximally to _____ and _____ anteriorly but not really ______ posteriorly
- capsule is attached distally to the ____ notch, (anterior or posterior?) border of the ____ and the ___ ligament
thin
strengthened
coronoid and radial fossa
oleacranon fossa
trochlea ; anterior; coronoid process; annular
LIGAMENTS
LATERAL LIGAMENT
- _____ in shape
- from ______ to _______
triangular
lateral epicondyle
annular ligament
AL is attached medially to the _____ of the ____ and clasps, but DOES NOT attach to, the _____ thus free to rotate within the lig.
radial notch
ULNA
radial head& neck
MEDIAL LIGAMENT
- _____ in shape
- Comprise ___,___,____ bands
- extends from the _____ of the ____ and the ____ to the _____ of the ____
anterior, posterior & middle
medial epicondyle; humerus
olecranon
coronoid process
ulna
ant and post bands of medial ligament areconnected by a (weaker or stronger ?) ____ band
Weaker
oblique
ant is ___-like and (weaker or stronger?)
-post is ___-like and (weaker or stronger?)
cord; stronger
fan; weaker
ulna nerve passes (anterior or posterior ?) to ______ in the elbow but still serves the _____ ligament
posterior
medial epicondyle
ulnar collateral
Movements of ELBOW joint
- main flexor is ____
- main extensor is ____
brachialis
triceps brachii
NERVE SUPPLY of elbow joint
-supplies by ___,___,____,__ nerves
median, musculataneous and radial nerves, and ulnar
RELATIONS of the elbow joint
Anteriorly: ____ nerve, ____ , ____ artery, _____ muscle
Posteriorly: ____ a ____——
median
bicipital aponeurosis
brachial
brachialis
Triceps a small bursa
RELATIONS of the elbow joint
Medially: _____ nerve
Laterally: _____ tendon and _____ muscle
ulnar
common extensor
MOVEMENTS of elbow joint
Flexion (___°): ____,____,—— & ____ muscles
Extension (___°): ____ +_____
140 ; Biceps; Brachialis; brachioradialis; forearm flexor
0; Triceps; anconeus
Extension by anconeus is to a greater extent compared to extension by triceps brachii
T/F
F
Movements of elbow joint
Pronation (___°):_____ &____
Supination (___°):_____ , Weaker supinators like _____,_____ and ______)
90; pronator teres; pronator quadratus.
90; biceps brachii
Supinator; extensor pollicis longus and brevis
biceps is the most powerful supinator.
T/F
T
Elbow dislocation
- The classical injury is (anterior or posterior?) dislocation caused by a _____ on the ____
- It is commonest in _____ whilst ____ is Incomplete
posterior
fall on the outstretched hand
children; ossification
Nerve injury in elbow joint
- Ulnar nerve is adjacent to the _____ ligament as it passes forwards (above or below?) the medial epicondyle
- The nerve is at risk in many types of injury, e.g. fracture dislocations, _____ and even during _____
medial collateral
Below
compression
surgical explorations
About elbow joint
_____ is the main flexor
_______ is the flexor when it’s supinated
______ is the flexor when it’s pronated
______ assists the flexion
Brachialis
Biceps brachii
Pronator teres
Brachioradialis
The posterior interosseous nerve (which is just another name for _____ BRANCH OF _____ NERVE), is part of the CUBITAL fossa
T/F
DEEP; RADIAL
T
tennis elbow.
It’s also called ______
Which is inflammation of the _______
Lateral Epicondylitis
lateral epicondyle
golfers elbow
Also called _________
Is the inflammation of the ______
Medial epicondylitis
medial epicondyle
The lateral collateral ligament of the elbow is attached to the neck of radius
T/F
F
It’s to annular ligament
The elbow joint and Superior radioulnar joint share what and what??
Synovial membrane and joint capsule only
Annular ligament surrounds the only the head of the radius
T/F
F
Surrounds head and upper neck
The anterior and posterior bands of the medial collateral ligament both originate from the ______
Anterior band goes anteriorly to attach to _______
Posterior band goes posteriorly to attach to _____
medial epicondyle
Coronoid process of the ulna
Olecranon process of the ulna
Elbow is a hinge synovial joint
T/F
T
Ligaments of the elbow joint
Fibrous capsule
Medial collateral
Lateral collateral
Movements of the elbow joint
Flexion and extension
