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
• Extensor Carpi Radialis
• Extensor Carpi Ulnaris
• Extensor Digiti Minimi
• Extensor Digitorum Communis
• Extensor Indicis
• Flexor Carpi Radialis
• Flexor Carpi Ulnaris
• Flexor Digitorum