Question

1. the extensors of the lower arm are also named for their location near the ulna or radius. the extensor carpi ulnaris is located on the ulna side and the extensor carpi radialis longus and a central muscle that extends the fingers (digits) called the extensor digitorum. drag the labels to the correct location.

extensor digitorum
extensor carpi ulnaris
extensor carpi radialis longus

Explanation:

1. Extensor Carpi Radialis Longus: Located on the radius (thumb) side of the forearm, it is the most lateral (outer) of the three muscles, matching the top blue arrow.
2. Extensor Digitorum: This is the large, central forearm muscle that splits into tendons extending to all four fingers, matching the middle blue arrow.
3. Extensor Carpi Ulnaris: Positioned on the ulna (pinky) side of the forearm, it is the most medial (inner) of the three muscles, matching the bottom blue arrow.

Answer:

• Top blue arrow: Extensor Carpi Radialis Longus
• Middle blue arrow: Extensor Digitorum
• Bottom blue arrow: Extensor Carpi Ulnaris