In human anatomy, the extensor indicis (proprius) is a narrow, elongated skeletal muscle in the deep layer of the dorsal forearm, placed medial to, and parallel with, the extensor pollicis longus. Its tendon goes to the index finger, which it extends.
Extensor indicis muscle
Extensor indicis muscle
Extensor indicis muscle
Extensor indicis muscle
The index finger is the second digit of a human hand. It is located between the thumb and the middle finger. It is usually the most dextrous and sensitive digit of the hand, though not the longest. It is shorter than the middle finger, and may be shorter or longer than the ring finger.
Left human hand with index finger extended
A man pointing at a woman during an argument
Plato, detail from the School of Athens, Raphael, 1509
A detail from The Creation of Adam, Michelangelo, 1512