Upper Limb Wrist & Hand Muscles (Origins, Insertions)

Question 1

What is the Pronator teres (humeral head) -
- Origin
- Insertion

Answer 1

Origin:
- Medial epicondyle of the humerus

Insertion:
- middle 1/3 of the lateral radius

Question 2

What is the Pronator teres (Ulnar head) -
- Origin
- Insertion

Answer 2

Origin:
- Coronoid process

Insertion:
- Middle 1/3 of the lateral radius

Question 3

What is the Supinator-
- Origin
- Insertion

Answer 3

Origin:
- Lateral epicondyle of the humerus

Insertion:
- Upper 1/3 of the posterior radius

Question 4

What is the Extensor Carpi Radialis (Longus) -
- Origin
- Insertion

Answer 4

Origin:
- Superior to the lateral epicondyle of humerus

Insertion:
- Base of 2nd metacarpal (dorsal surface)

Question 5

What is the Extensor Carpi Radialis (Brevis) -
- Origin
- Insertion

Answer 5

• Origin:
• Lateral epicondyle of humerus
• Insertion:
• Base of 3rd metacarpal (dorsal surface)

Question 6

What is the Extensor Carpi Ulnaris -
- Origin
- Insertion

Answer 6

Origin:
- Lateral epicondyle of humerus
- Olecranon process

Insertion:
- Base of 5th metacarpal

Question 7

What is the Extensor Digiti Minimi -
- Origin
- Insertion

Answer 7

Origin:
- Lateral epicondyle of humerus

Insertion:
- Base of the proximal phalange of the 5th digit (dorsal)

Question 8

What is the Extensor Digitorum Communis -
- Origin
- Insertion

Answer 8

Origin:
- Lateral Epicondyle of humerus

Insertion:
- Middle and distal phalange of the 2nd - 5th digits (dorsal surface)

Question 9

What is the Extensor Indicis -
- Origin
- Insertion

Answer 9

• Origin:
• Lower1/3 posterior ulna
• Insertion:
• Base of Proximal phalange of the 2nd digit (dorsal surface)

Question 10

What is the Flexor Carpi Radialis -
- Origin
- Insertion

Answer 10

Origin:
- Medial Epicondyle of the humerus

Insertion:
- Base of the 2nd and 3rd metacarpals (palmer surface)

Question 11

What is the Flexor Carpi Ulnaris -
- Origin
- Insertion

Answer 11

Origin:
- Medial Epicondyle of the humerus
- Olecranon

Insertion:
- Base of the 5th metacarpal (palmer surface)
- Pisiform
- Hook of hamate

Question 12

What is the Flexor Digitorum (Profundus)-
- Origin
- Insertion

Answer 12

Origin:
- Upper 1/2 of the anterior ulna

Insertion:
- Distal phalange of the 2nd - 5th digits (palmer surface)

Question 13

What is the Flexor Digitorum (superficialis) -
- Origin
- Insertion

Answer 13

Origin:
- Medial epicondyle of the humerus

Insertion:
- Middle Phalange of the 2nd - 5th digits (palmer surface)

Question 14

What are all 10 muscles in the wrist and hand:

Answer 14

• Pronator Teres
• Supinator Teres
• Extensor Carpi Radialis
• Extensor Carpi Ulnaris
• Extensor Digitorum Minimi
• Extensor Digitorum Communis
• Extensor Indicis
• Flexor Carpi Radialis
• Flexor Carpi Ulnaris
• Flexor Digitorum Communis