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Anatomy of Upper Extremities > Wrist > Flashcards

Wrist Flashcards

0
Q

Where is the Radiocarpal Joint Located?

A

Proximally: Distal end of the RADIUS
RADIOULNER DISK

Distally: Scaphoid
Lunate
Triquetrum

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1
Q

List the joints that are found in the carpals (wrist)?

A

Radiocarpal

Midcarpal

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2
Q

What motions occur in the BIAXIAL of the RADIOCARPAL Joint?

A

Flexion - Extension
Radial - Ulnar Deviation
Circumduction

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3
Q

Where is the MIDCARPAL (Intercarpal) Joint located?

A

Between the two rows of carpals.

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4
Q

What movement occurs at the nonaxial of the Midcarpal Joint?

A

Gliding Motion

*No access of rotation

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5
Q

The Radiocarpal is what type(s) of joint(s)?

A

Synovial
Condyloid
Biaxial

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6
Q

The Midcarpal is what type(s) of joint(s)?

A

Irregular

Nonaxial

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7
Q

What is the normal degree of wrist flexion?

A

90 degrees

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8
Q

What is considered to be normal degrees for wrist extension?

A

70 degrees

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9
Q

What is considered to be the normal degrees for wrist Ulnar Deviation?

A

35 degrees

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10
Q

What is considered to be the normal number of degrees for Radial Deviation of the wrist?

A

25 degrees

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11
Q

What are the names of the carpals in the proximal row (lateral to medial)?

A

Pisiform
Triquetrum
Lunate
Scaphoid

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12
Q

What are the names of the carpals in the Distal row (lateral to medial)?

A

Hamate
Capitate
Trapezoid
Trapezium

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13
Q

Where is the Styloid Process located??

A

Distal, Lateral Radius

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14
Q

Where is the Hook of the Hamate located?

A

Anterior surface of Hamate

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15
Q

Which Bony Landmark is common for FLEXOR Tendon Attachment?

A

Medial Epicondyle

16
Q

Which Bony Landmark is common for EXTENSOR Tendon Attachment?

A

Lateral Epicondyle

17
Q

Which Bony Landmark is common for EXTENSOR CARPI RADIALIS LONGUS Attachment?

A

Supracondylar Ridge

18
Q

What are the 4 basic ligaments of the radiocarpal joint?

A

Radial Collateral
Ulnar Collateral
Palmer Radiocarpal
Dorsal Radiocarpal

19
Q

Where does the Radial Collateral Ligament attach?

A

Styloid Process of Radius

Scaphoid and Trapezium Bones

20
Q

What does the Radial Collateral Ligament do?

A

Provides Lateral support to the Wrist

21
Q

Where does the Ulnar Collateral Ligament attach?

A

Styloid Process of the Ulna

Pisiform & Triquetrum Bones

22
Q

What does the Ulnar Collateral Ligament do?

A

Provides Medial support to the Wrist

23
Q

Where does the Palmar Radiocarpal Ligament attach?

A

Anterior Distal Radius and Ulna

Anterior surface of Scaphoid, Lunate & Triquetrum Bones

24
Q

What does the Palmar Radiocarpal Ligament do?

A

Important for Wrist Extension.

25
Q

Where does the Dorsal Radiocarpal Ligament attach?

A

Posterior Surface of Distal Radius
to
Posterior Surface of Scaphoid, Lunate & Triquetrium

26
Q

What does the Dorsal Radiocarpal Ligament do?

A

Limits Wrist Flexion.

27
Q

Where is the joint capsule located?

A

It encloses the radiocarpal joint

28
Q

What do the Joint Capsule and Articular Disk do?

A

They act as shock absorbers and filler.

29
Q

What is another term for Palmar Aponeurosis?

A

Palmar Fascia

30
Q

What are the ANTERIOR Muscles of the Wrist?

A

Flexor Carpi Ulnaris
Flexor Carpi Radialis
Pulmaris Longus

31
Q

What are the POSTERIOR Muscles of the Wrist?

A

Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Carpi Ulnaris

32
Q

What are the two common PROXIMAL Attachments?

A

Wrist Flexors: Medial Epicondyle

Wrist Extensors: Lateral Epicondyle (most)

33
Q

What is the Distal attachment or insertion for the muscles of the wrist?

A

The Metacarpals

34
Q

What muscles aide in FLEXION?

A

Flexor Carpi Radialis

Flexor Carpi Ulnaris

35
Q

What muscles aide in EXTENSION?

A

Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Carpi Ulnaris

36
Q

What muscles aide in RADIAL DEVIATION?

A

Flexor Carpi Radialis

Extensor Carpi Radialis Longus

37
Q

What muscles aide in ULNAR DEVIATION?

A

Flexor Carpi Ulnaris

Extensor Carpi Ulnaris

38
Q

Posterior Muscles are associated with what nerve?
Anterior Muscles Radially are associated with what nerve?
Anterior Muscles Ulnarly are associated with what nerve?

A

Radial
Medial
Ulnar

Anatomy of Upper Extremities (8 decks)

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