Pronation, Supination, Carpal Tunnel Flashcards
CHARACTERISTICS
-possible only in the ____ and _____
forearm and hands
movements in our hand is solely permitted by the ____ and ____ joints
superior and inferior radioulnar
PROXIMAL RADIOULNAR JOINT
- Radial notch: accepts __
- Annular ligament: A ligament that starts from _____, goes _____, and ends at ____
-Arcuate/quadrate ligament: between ____ of ____ and ____
head of radius
one margin of the notch; round the head; the other margin of the notch
head of radius and ulna
PROXIMAL RADIOULNAR JOINT
——— ______ joint
synovial pivot
there’s a level of mobility of the radial head. It can move around the _____ but the ____ prevent it from pulling out
radial notch
annular ligament
DISTAL RADIOULNAR JOINT
-Ulnar notch: accepts ____ of ____ bone
- pivotal synovial joint
- allows movement of the ulna to a certain degree
- palmar and dorsal capsular/radioulnar ligament , unlar collateral ligament , ulnolunate ligament, ulnotriquetral ligament also fortifies the joint
head of ulna
FibroCartilage:
there is a ____ shaped disc that is formed at the _____ joint which accepts the ___; forms the articular surface of the ______ joint
triangular
radioulnar
ulnar
distal radioulnar
FIBROUS CAPSULE
- at _____ radioulnar joint
- continuous with the capsule of the ____ joint to attach to the _____ ligament
- the ____ and ____ ligament also helps
- envelops the _____ radioulnar joint
proximal
elbow
annular
radial and ulnar collateral
proximal
INTEROSSEOUS MEMBRANE
- found between the ____ and ____ bone
- runs _____ (upwards or downwards?) from the radius to ulna bone
- at its (proximal or distal?) part , there’s an opening which allows passage of the _____
radius and ulnar
obliquely
downwards
distal
blood vessel
OBLIQUE CORD
- fiber runs (medially or laterally ?) from the ulna to the radius
- ______ direction to the interosseeous membrane
laterally
opposite
Pronator teres:
- (chief or supporting?) muscle
- from _____ and ______ to ____ of ___
supporting
medial epicondyle and Coronoid process of ulna
lateral mid shaft of radius
Pronator quadratus:
- (chief or supporting?) muscle
- from ____ Surface of (proximal or distal?) ulna to (proximal or distal?) _____ Surface of distal radius
Chief
anterior; distal; distal; anterior ; anterior
Supinator: from ____ and _____ to ______
from lateral epicondyle and post surface of ulna
post lat surface of radius
Biceps brachii:
short from ____ and long from _____ to ____ of ____
coracoid
supraglenoid
radial tuberosity of radius
ANTERIOR INTEROSSEOUS NERVE SYNDROME
- the INTEROSSEOUS membrane has spaces for vessels to pass
- when the ____ gets entrapped, that’s what causes the issue because the nerve gets compressed
- symptoms include failure to _____ with ____ and _____, weakened ___ and _____ finger pincer grip. and ____ease pronation strength
median nerve
make an ok sign with thumb and index
thumb and index
Decr
which is stronger
Pronation or supination
Pronation
GALEAZZI FRACTURE
- occurs when you ___ your hand and ___ in that position which can lead to a fracture of the ____ of the _____
- can cause dislocation of the ______ joint
- making the pronation and supination movements impossible due to pain felt by the ______ of the _____ joint
stretch
fall
distal shaft of the radius
distal radioulnar
incompatibility of the radioulnar
CARPAL TUNNEL
- (narrow or wide?) passage on the palm side of the wrist
- made up of bones and ligaments
narrow
BOUNDARIES OF THE CARPAL TUNNEL
-formed mainly by bones
Medially
_____ and ____
Laterally
_____ and _____ bones
_____________ :tendon from _____
Roof
________
Pisiform and Hamate
Trapezium and Scaphoid
Fibrosseous Flexor carpi radialis; FCR
Flexor retinaculum
CONTENTS of carpal tunnel syndrome
- 9 tendons
- 4 are ______ tendon
- 4 are _______ tendon
- 1 is _______ tendon
- _____ nerve
flexor digitorum superficialis
flexor digitorum profoundus
flexor policis longus
median
Swelling of the synovial sheat can cause pressure in the tunnel leading to _____ of the _____ resulting in ____ of the thumb and part of the hand. If it’s serious, can lead to pain
compression of the median nerve
numbness
_______ nerve passed over the carpal tunnel
Cutaneous branch of median
Radioulnar joints are ___axial joints , allowing movement in only ___ direction
Uni
One
The upper margin of the annular ligament is continuous with the ___ of the ____ joint and its lower part becomes (narrow or wide?) and embraces the _____ of radius.
capsule of the elbow
narrow
neck
The inner surface of annular ligament is covered by a (thin or thick?) layer of _____.
Laterally, it blends with the ______ ligament.
thin
cartilage
radial collateral
Quadrate ligament:
It is (thin or thick ?), (fibrous or serous?) ligament, which extends from__ of ____ to the (upper or lower?) part of _____ of ulna just (above or below?) the radial notch.
thin
fibrous
neck of radius
upper
supinator fossa
below
Relations of superior radioulnar joint
Anteriorly and laterally: _____ muscle.
Posteriorly: ____ muscle.
Supinator
Anconeus
Capsular ligament (joint capsule):
The synovial lining of the joint sends an upward prolongation in front of the lower part of the interosseous membrane called ______.
recessus sacciformis
The synovial cavity of the inferior radioulnar joint communicate with the synovial cavity of the wrist joint.
T/F
F
Articular disc of inferior radioulnar joint : is sometimes referred to by clinicians as _____.
triangular ligament
Articular disc:
Its apex is attached to the ___ of the ____ of ____ and its base to the __ margin of the ____ of ______.
base
styloid process of ulna
lower
ulnar notch of radius
The ______ separates the inferior radio-ulnar joint from the wrist joint.
articular disc
Relations of inferior radioulnar joint
Anteriorly: ________
Posteriorly: _______
Flexor digitorum profundus.
Extensor digiti minimi.
The INTEROSSEOUS membrane of the forearm does not interfere with the movements, which take place in the forearm
T/F
T
INTEROSSEOUS MEMBRANE OF THE FOREARM is sometimes termed _____ joint.
This is a _____ type of ____ joint.
middle radio-ulnar
syndesmosis
fibrous
INTEROSSEOUS membrane of the forearm begins (above or below?) the _____ of the _____ and blends distally with the ______ of the ____
below
tuberosity of the radius
capsule of the inferior radioulnar joint
INTEROSSEOUS membrane of the forearm runs from _____ to ___[
Radius to ulna
Posterior interosseous vessels of the forearm pass through a space between the ____ margin of ___ and the _____
Upper ; INTEROSSEOUS membrane of the forearm
Oblique cord
The anterior INTEROSSEOUS vessels pass by _____ the _____ 5cm above its ____ margin
Piercing the INTEROSSEOUS membrane of the forearm
Lower
______ supinates the pronated forearm to midprone position
Brachioradialis
______, pronates the supinated forearm to midprone position
Brachioradialis
Most important stabilizing factor of proximal radio ulnar joint is ??
Most important stabilizing factor of distal radio ulnar joint is ??
Annular ligament
Articular disc
Things that pass superficial to the flexor retinaculum of the wrist
\_\_\_\_ nerve \_\_\_\_\_ artery \_\_\_\_\_\_\_\_\_\_\_\_\_ nerve. Tendon of \_\_\_\_ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ nerve. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ artery.
Ulnar
Ulnar
Palmar cutaneous branch of ulnar
palmaris longus
Palmar cutaneous branch of median
Superficial palmar branch of radial
