The phalanges (single: phalanx) of the hands are the tubular bones of the fingers and thumb. The second to fifth fingers each contain a proximal, middle and distal phalanx whereas the thumb only contains a proximal and distal phalanx. Article: Gross anatomy.
What is the phalanx of the second to fifth finger?
The second to fifth fingers each contain a proximal, middle and distal phalanx whereas the thumb only contains a proximal and distal phalanx. The middle and proximal phalanges each have a base proximally, head distally, and body in between. The bases are concave in order to articulate with the convex head of the more proximal metacarpal or phalanx.
How is flexor digitorum superficialis inserted in the phalanx?
Flexor digitorum superficialis is inserted by two slips either side of the corresponding middle phalanx.
What is phalangitis and how is it treated?
Phalangitis: A relatively rare condition characterized by infection, and inflammation of these bones, joints, or the surrounding soft tissues. Treatment may include medications, splints, injuries, and surgeries, depending on the severity of the condition [18].
What is the middle phalanx of the thumb?
Middle Phalanges: Located in the middle, between the proximal phalanges and distal phalanges. The middle phalanx is not present in the human thumb, which only has a proximal and a distal phalanx [7]. Distal Phalanges: The most terminal of all the phalanges, located at the end of the digits in hand [8].
Does the phalangeal head have an articular surface?
Distally, the trochlea or phalangeal head has an articular surface that links the proximal phalanges to the middle phalanges and in the case of the thumb, to its distal phalanx.
Why is the arrangement of the distal phalanges important?
Anatomical arrangement of distal phalanges is necessary for placing the thumb pulp facing the pulps of other fingers which enables maximum contact surface with the object that is held. Distal phalanges of both hands and feet carry and shape nails and finger pads.
