Human finger anatomy

The elbow is one of the largest joints in the body. The elbow is one of the largest joints in the body. The hand also must be coordinated to perform fine motor tasks with precision. The first is by location.The other classification of these muscles is by the movement of the fingers.Nerves send signals from the brain to the muscles (motor nerves) causing it to contract or from receptors in the fingers to the brain (sensory nerves) to enable the different sensations.
Adequate strength forms the basis for normal hand function. English dictionaries describe finger as meaning either one of the five digits including the thumb, or one of the four excluding the thumb (in which case they are numbered from 1 to 4 starting with the index finger closest to the thumb).The palm has five bones known as metacarpal bones, one to each of the five digits. Elbow.

Instead it is contained within a single structure – the hand. Fingers are constructed of ligaments (strong supportive tissue connecting bone to bone), tendons (attachment tissue from muscle to bone), and three phalanges (bones). The thumb has two extensors in the forearm; the tendons of these form the The intrinsic muscle groups are the Although a common phenomenon, the underlying functions and mechanism of fingertip wrinkling following immersion in water are relatively unexplored.

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There are no muscles in the fingers; and fingers move by the pull of forearm muscles on the tendons.

Each bone … The ring finger refers to the fourth digit of each hand, located between the middle and pinky fingers.
Anatomy of the fingers The human finger is mainly a bony structure with multiple joints giving it strength and flexibility.

The deep flexor attaches to the distal phalanx, and the superficial flexor attaches to the middle phalanx. In conjunction with the shoulder joint and … Human hands contain fourteen digital bones, also called phalanges, or Fingers do not contain muscles (other than Muscles of the fingers can be subdivided into extrinsic and intrinsic muscles.

The primary function of the extensors is to straighten out the digits.

However, in some languages the translated version of fingers can mean either the digits on the hand or feet. The hand needs to be mobile in order to position the fingers and thumb. In English only the digits on the hand are known as fingers. The flexors allow for the actual bending of the fingers. A digit includes the hand bones but these bones are not separated into individual appendages like a finger. They are called extrinsic because the muscle belly is located on the forearm. In English a digit on a foot has the distinct name of The enlarged end of each phalanx (finger bone) being either the base or head is known as the There are two types of finger joints, all of which are commonly referred to as There are two interphalangeal joints (IP joints) on each finger, except for the thumb which has one.There is only one metacarpophalangeal joint (MCP joint) which lies between the proximal phalanx and metacarpal (hand bone). The motor nerves supplying the muscles controlling the fingers is not discussed here since these muscles are located in the hand and forearm.

Tendons running from these muscles attach to various points on the finger bones.

The tendons unite with the interosseous and lumbrical muscles to form the extensorhood mechanism.

Instead it is contained within a single structure – the hand.

The thumb has one long flexor and a short flexor in the thenar muscle group.

It involves the median, ulnar and radial nerves.The skin of the fingers are supplied by different nerves as follows :Please note that any information or feedback on this website is not intended to replace a consultation with a health care professional and will not constitute a medical diagnosis.

The human finger is mainly a bony structure with multiple joints giving it strength and flexibility.