Anatomy Of Index Finger

Normally humans have five digits the bones of which are termed phalanges on each hand although some people have more or fewer than five due to congenital disorders such as polydactyly or oligodactyly or accidental or medical amputations. It works with the extensor digitorum communis to the index finger.

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It has its own muscle belly in the forearm and then as it becomes a tendon it travels through a tough band or retinaculum in the wrist.

Anatomy of index finger. Its reported prevalence is from 11 to 47 8 16 17. The extensor indicis extends the index finger while the palmar interosseus adducts it. The extensor indicis proprius tendon straightens the index finger.

This finger often possesses the largest amount of sensitivity and greatest dexterity of any of the fingers. Anatomy of the fingers the human finger is mainly a bony structure with multiple joints giving it strength and flexibility. Ligaments connect finger bones and help keep them in place.

Finger movement is controlled by muscles in the forearms that pull on finger tendons. There are no muscles in the fingers. A digit includes the hand bones but these bones are not separated into individual appendages like a finger.

The index finger is composed of three bones. It is also called the index finger or the forefinger. Picture of finger anatomy.

The index middle ring and fifth digits have proximal middle and distal phalanges and three hinged joints. The median nerve innervates the fingers skin. Oxygenated blood arrives at the finger through the common palmar artery which extends off of the palmar arch connecting the ulnar and radial arteries.

The extensor digitorum brevis manus is a muscle that originates from the dorsum of the carpus or the distal forearm and inserts into the index finger or less commonly into the long finger. The distal phalanx intermediate phalanx and proximal phalanx. The first digit is the thumb followed by index finger middle finger ring finger and little finger or pinkie.

The thumb has a distal and proximal phalanx as well as an interphalangeal and mcp joint. A finger is a limb of the human body and a type of digit an organ of manipulation and sensation found in the hands of humans and other primates. The thumb has two of each.

Distal interphalangeal dip proximal interphalangeal pip and metacarpophalangeal mcp. And fingers move by the pull of forearm muscles on the tendons. Basic anatomy of the finger.

The index finger does not contain any muscles but is controlled by muscles in the hand by attachments of tendons to the bones. Fingers are constructed of ligaments strong supportive tissue connecting bone to bone tendons attachment tissue from muscle to bone and three phalanges bones. Fingers have a complex anatomy.

Tendons connect muscles to bones. The index finger has three phalanges. Each finger has 3 phalanges bones and 3 hinged joints.

The pointer finger is the second digit and first finger of the human hand.

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