Term
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Definition
Carpals - Sally left the party to take Caroline home
Scaphoid,Lunate,Triquetrum,Pisaform,
Trapezium, Trapezoid, Capitate, Hamate
Scaphoid articulates with the Radius
Pisaform is anterior
Trapezium articulates with the 1st metacarpal forming a saddle joint
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Term
| Why is the ulna not a part of the Radiocarpal joint? |
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Definition
| Because an articular disk is located between the ulna and the proximal row of carpals the ulna is not considered a part of this joint. |
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Term
| The radiocarpal joint is a synovial joint. It is classified as a condyloid joint. Which part of the joint is concave? Which convex? |
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Definition
Concave = distal end of radius
convex - scaphoid, lunate, triquetrum |
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Term
| what are the degrees of freedom of the radiocarpal joint? |
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Definition
2 degrees - a biaxial joint
flexion/extension
ulnar deviation/radial deviation |
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Term
| The midcarpal or intercarpal joint occurs where? |
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Definition
| Between the two rows of carpal bones Their shape is irregular and they are classified as plane joints. They are nonaxial that allow gliding motion. Any movement here is accessory motion |
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Term
| The carpometacarpal (CMC) joints occur where? |
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Definition
| Between the distal row of carpals and the proximal row of metacarpal bones. |
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Term
| The capsule of the elbow joint encompasses what? |
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Definition
The trochlea and capitulum and the fossas above them
the proximal end of the ulna and coronoid process and around the trochlear notch |
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Term
The lateral collateral ligament attaches to what other ligament? |
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Definition
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Term
If the lateral collateral ligament is damaged what other ligament may be damaged? |
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Definition
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Term
Stabilizers of the elbow joint. The capsule, the 3 ligaments and 4 muscles. What are the 4 muscles that stabilize the elbow joint?
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Definition
| Pronator teres medially , brachioradialis laterally , brachialis and supinator the floor, the antecubital fossa is the hole in the middle. |
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Term
| describe the concept of neutralizer in wrist movements |
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Definition
Flexor carpi radialis flexes and radial deviates
extensor carpi radialis longus extends and radial deviates
in order to have pure radial deviation the extensor of ECRL and the flexing of FCR neutralize each other and no flexing or extending occurs just plain old radial deviation |
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Term
| Active insufficiency of the biceps brachii muscle occurs when? |
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Definition
| The elbow is in full flexion and the shoulder is in full flexion |
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Term
| The anconeus muscles is not a prime mover of any thing. Is assists in elbow extension. It may help the _______ ligment from being pinched during extension. |
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Definition
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Term
| The supinator and biceps form a force couple to do what? |
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Definition
| move the radius around the ulna |
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Term
Summary of nerves of wrist muscles
Posterior muscles - extensors = Radial Nerve
Anterior muscles radial side = Median nerve
Anterior muscles of ulnar side = ulnar nerve |
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Definition
flexors of the wrist originate on the medial epicondyle
Extensors of the wrist originate on the lateral epicondyle except for extensor carpi radialis longus that orginates on the lateral supracondylar ridge |
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Term
There are 6 muscles for the wrist joint.
3 extensors are innervated by the Radial Nerve
1 flexor is innervated by the ulnar nerve
2 flexors are innervated by the Median nerve |
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Definition
Extensor Carpi Radialis Brevis
Extensor carpi Radialis longus
Extensor carpi Ulnaris are innervated by the Radial nerve
flexor Carpi Ulnaris is innervated by the Ulnar Nerve
Palmaris longus and Flexor carpi radialis are innervated by the Median nerve |
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Term
| Name the ligaments of the wrist |
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Definition
Radial Collateral ligament
Ulnar Collateral ligament
Palmer radiocarpal ligament
Palmer ulnocarpal ligament
Dorsal radiocarpal ligament
page 135 |
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Term
| The flexors of the wrist originate on the ________ |
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Definition
| Medial epicondyle of the humerus bone |
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Term
| The extensors of the wrist originate on the _____ side of the humerus. |
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Definition
Lateral
Extensor Carpi radialis Longus - Lateral supracondylar ridge
Extensor Carpi ulnaris and
Extensor carpi radialis brevis - lateral epicondyle of humerus |
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