Primary Wrist Muscles (Attachments)

Question 1

Extensor Carpi Radialis Longus

Answer 1

Attachment 1:
- Lateral epicondyle, lateral supracondylar ridge of humerus
Attachment 2:
- Dorsal base of 2nd metacarpal

Question 2

Extensor Carpi Radialis Brevis

Answer 2

Attachment 1:
- Lateral epicondyle of humerus
Attachment 2:
- Dorsal base of 3rd metacarpal

Question 3

Extensor Carpi Ulnaris

Answer 3

Attachment 1:
- Lateral Epicondyle of humerus
Attachment 2:
- Dorsal base of 5th metacarpal

Question 4

Palmaris Longus

Answer 4

Attachment 1:
- Medial epicondyle of humerus
Attachment 2:
- Volar Base of 2nd metacarpal

Question 5

Flexor Carpi Radialis

Answer 5

Attachment 1:
- Medial epicondyle of humerus
Attachment 2:
- Volar base of 2nd metacarpal

Question 6

Flexor Carpi Ulnaris

Answer 6

Attachment 1:
- Medial epicondyle of humerus
Attachment 2:
- Pisiform, hook of hamate, volar base 5th metacarpal