Hand and Wrist Questions

The wrist motions of flexion, extension, and ulnar deviation have this type of end feel.

Firm/hard

Which muscles attach on the medial epicondyle of the humerus?

Flexor carpi ulnaris flexor carpi radialis palmaris longus

The CMC joints of digits ____ and ______ form the ______ ____ necessary for cupping.

one and five palmar arch

When in anatomical position: Thumb abduction and adduction occur in the _____ plane

sagittal

The dorsal radiocarpal ligament is fairly lax but becomes taut with full _______ ____, preventing _______.

wrist flexion hyperflexion

The MCP joints have a _______-on-______ articulation.

concave on convex

The trapezium articulates with the base of the ________ metacarpal.

first

The bases of the carpals, which are found more proximal are flat or found?

flat

The first MCP is _____ and ____ only.

flexion and extension

Which of the thumb opposition motions is an accessory motion?

rotation

The heads of the carpals, found more distal, are flat or round?

round

The first CMC joint is a ______ joint.

saddle

Slowly lower the weight in your hand (resting on thigh, palm up). 1. What joint motion is occurring in the wrist? 2. What type of contraction is occurring in the wrist? 3. Which muscles of being strengthened?

1. extension 2. eccentric 3. wrist flexors

Standing with your arm at your side, elbow flexed, palm down, hold on to a loop of elastic tubing that has the other end anchored under your foot. Curl your wrist up. 1. What joint motion is occurring at the wrist? 2. What ligament limits this motion at the end range? 3. What type of contraction is occurring? 4. What muscles are being strengthened?

1. extension 2. palmar radiocarpal ligament 3. concentric 4. extensors

Sit with your forearm resting on your thigh, palm up, and holding a weight in your hand. Bend your wrist up. 1. What joint motion is occurring in the wrist? 2. What type of contraction is occurring? 3. What portion of the joint capsule is being lengthened at the end rage of this motion?

1. flexion 2. concentric 3. wrist flexors

Slowly lower your wrist to the starting position (from palm down wrist extension w/elbow flexed to wrist parallel to the floor with elbow flexed). 1. What joint motion is occurring in the wrist? 2. What type of contraction is occurring? 3. What muscles are being stretched?

1. flexion 2. eccentric 3. extensors

Standing with your arm at your side, elbow flexed, forearm in a neutral position, hold on to a loop of elastic tubing that has the other end anchored above your head to some stationary object. Bend your wrist down. 1. What joint motion is occurring in the wrist? 2. What type of contraction is occurring? 3. What muscles are being stretched?

1. ulnar deviation 2. concentric 3. ulnar deviators

An individual has tight wrist flexors. 1. What joint motion will be limited? 2. During performance of passive stretch to restore this motion and to facilitate normal arthrokinematics at the wrist joint, do the proximal row of carpals need to glide in an anterior or posterior direction?

1. wrist extension 2. anterior

A type of pad-to-pad grip where the pads of the thumb and the 2nd and 3rd digits contact each other.

3-jaw chuck

Picking up a large screw is an example of this grip.

3-jaw chuck

At what joint does abduction/adduction occur: A: in the fingers? B: in the thumb?

A. MCP joint B. CMC joint

The first digit, the thumb, has three joints. There are the _____, the _____, and the ________.

CMC (carpometacarpal) MCP (metacarpophalangeal) IP (interphalangeal)

Thumb opposition is a combination of _____ and _______.

CMC flexion and abduction and rotation

Which muscles attach on or close to the lateral epicondyle of the humerus?

Extensor carpi radialis longus and brevis extension carpi ulnaris

The four joint motions allowed by the radiocarpal joint is?

flexion extension deviations

The CMC joints of the fingers are classified as uniaxial, nonaxial, biaxial, or triaxial?

Nonaxial

Which writs motions occur in the transverse plane around the vertical axis?

None

There are two interphalangeal joints in each finger known as the _____ joint and the ____ joint.

PIP DIP

The pad of the thumb contacts the lateral side of the 2nd digit.

Pad to side or lateral prehension

The pads of two or more fingertips touch each other.

Pad-to-pad

Which wrist motions occur in the frontal plane around the sagittal axis?

Radial, ulnar deviation

Name of the bones of the carpals in the proximal row, then the distal row, palm up, lateral to medial.

Scaphoid, Lunate, Triquetrum, Pisiform Trapezium, Trapezoid, Capitate, Hamate

What is the purpose of the flexor and extensor retinaculum?

They hold the extrinsic tendons close to the wrist

Only the very tips of the thumb and another digit come in contact.

Tip-to-tip

Which two wrist motions occur in the sagittal plane around the frontal axis?

Wrist flexion, extension

The base of the promimal phalanx glides _______ during flexion and ______ during extension, _____ during adduction, and _______ during abduction.

anteriorly posteriorly medially laterally

Why is the ulna not considered part of the wrist joint?

articular disk located between ulna an dproximal row of carps

The 2nd - 5th MCPs are _____ ______

biaxial condyloid

The MCP joints (digits 2-5) are ______ joints.

condyloid

Holding a hammer, a requet, or a wheelbarrow handle are examples of a _______ grip.

cylindrical

The ________ grip has all the fingers flexed around the object, which usually lies at a right angle to the forearm.

cylindrical

Which muscles cross the wrist on the radial side?

extensor carpi radialis longus flexor carpi radialis

Which muscles cross the wrist on the ulnar side?

extensor carpi ulnaris, flexor carpi ulnaris

There is a _______ disc between the head of the _______ and the ______.

fibrocartilagenous ulna triquetrum

The wrist motions of radial deviation have this type of end feel.

firm

The hamate articulates with the base of the ______ & _________ metacarpal.

fourth and fifth

When in anatomical position: Thumb flexion and extension occur in the _____ plane

frontal

The joint motion allowed by the midcarpal (intercarpal) joint is?

gliding

CMC joints (digits 2-5) have these two movements

gliding and sliding

Holding onto the handle of a suitcase, briefcase, wage, or bucket is an example of a _____ grip.

hook

The _______ grip involves the second thru fifth fingers flexed around an object in a hooklike manner. The MCP joints are extended, and the PIP and DIP joints are in some degree of flexion.

hook

The only type of power grip possible if a person has a median nerve injury and loses the ability to oppose the thumb is the _____ grip.

hook

Using a remote is an example of

lateral prehension

What is the name of the proximal bony landmark just proximal to the lateral epicondyle?

lateral supracondylar ridge

The MCP's are flexed, PIPs and DIPs are extended, and the thumb is in opposite on the other side of the object. Holding a plate in your hand is an example.

lumbrical grip

The ______ finger is the point of reference for abduction and adduction of the fingers.

middle

All five joints of the CMCs are ______ ______ joints but the _____ CMC is the only one that has two axes of motion.

modified saddle first

Which muscle, is present, has very little function?

palmaris longus

Holding a piece of thread is an example of a

pincer/tip to tip grip

A type of pad to pad grip that involves the thumb and one finger.

pinch grip

Wrist flexion, extension, radial deviation, and ulnar deviation are a combination of movements at the _____ joint and the _____ joint.

radiocarpal midcarpal

From an arthrokinematic persepective, during flexion and extension, the concave base of the first metacarpal glides in the (same/opposite) direction as the distal end of the metacarpal.

same

The radiocarpal joint consists of the radius articulating with the _______, ________, and _______.

scaphoid, lunate, and triquetrum

The trapezoid articulates with the base of the ______ metacarpal.

second

Abduction occurs when the ____, ____, ____, fingers move ____ from the middle finger.

second, fourth, and fifth away

An object is held between the sides of two fingers.

side to side

Holding a cigarette between the 2nd and 3rd digits is an example of a

side to side grip

A _____ grip has all the fingers and thumb abducted around an object with the fingers more spread out.

spherical

Holding an apple, a doorknob, picking up a glass by its top, or holding a ball are examples of a _________ grip.

spherical

The radiocarpal joint is a ______, ________ joint type.

synovial, condyloid

The Midcarpal joint is a _______,______ joint type.

synovial, planar

What is the anatomical snuff box?

the indentation formed between the tendons of the abductor pollicis longus and extensor pollicis brevis laterally and extensor pollicis longus medially

The palmar radiocarpal ligament is very _____ and _____ and limits wrist ______.

thick and tough extension

The capitate articulates with the base of the ______ metacarpal.

third

When abduction and adduction of the first MC occurs, the convex base of the first metacarpal glides on the concave _______ bone in the (same/opposite) direction from the distal end of the metacarpal.

trapezium opposite

The CMC joint is made up of the _______ bone which articulates with the base of the _______ _________.

trapezium first metacarpal

The midcarpal joint consists of the scaphoid, lunate, and triquetrum articulating with the _____, ______, ______, and ______.

trapezium, trapezoid, capitate, and hamate

When holding a cup of coffee, what wrist motion does gravity want to impose?

ulnar deviation

The PIP and DIP joints are _____ hinge joints.

uniaxial

The first MCP joint is _____ _______.

uniaxial hinge