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Human hand anatomy (pentadactyl) In biology, dactyly is the arrangement of digits ( fingers and toes) on the hands, feet, or sometimes wings of a tetrapod animal. It comes from the Greek word δακτυλος ( dáktylos) meaning 'finger'. Sometimes the ending "-dactylia" is used. The derived adjectives end with "-dactyl" or "-dactylous".
Onychotillomania can be categorized as a body-focused repetitive behavior in the DSM-5 and is a form of skin picking, also known as excorciation disorder . It can be associated with psychiatric disorders such as depressive neurosis, delusions of infestation [2] and hypochondriasis. [3]
Leukonychia. Other names. White nails or Milk spots [1] Specialty. Dermatology. Leukonychia (or leuconychia) is a medical term for white discoloration appearing on nails. [2] It is derived from the Greek words leuko 'white' and onyx 'nail'. The most common cause is injury to the base of the nail (the matrix) where the nail is formed.
These blisters are commonly found on the newborn's arms, fingers, or any body part they are able to suck on. It is a very rare condition, seen in less than 1% of newborns. It is difficult to diagnose because its appearance can be mistaken as other skin conditions. Diagnosis is usually done by eliminating other possible cutaneous conditions.
Paresthesia is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. [1] Paresthesia may be transient or chronic, and may have many possible underlying causes. [1] Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs.
Mumblety-peg (also known as mumbley-peg, mumbly-peg, [1] mumblepeg, mumble-the-peg, mumbledepeg, mumble peg or mumble-de-peg) is an old outdoor game played using pocketknives. [2] The term "mumblety-peg" came from the practice of putting a peg of about 2 to 3 in (5 to 8 cm) into the ground. The loser of the game had to take it out with his teeth.
Primate fingers have both fingernails and fingerprints. Research has been carried out on the embryonic development of domestic chickens showing that an interdigital webbing forms between the tissues that become the toes, which subsequently regresses by apoptosis. If apoptosis fails to occur, the interdigital skin remains intact.
Brachydactyly. Brachydactyly ( Greek βραχύς 'short' plus δάκτυλος 'finger') is a medical term which literally means 'short finger'. The shortness is relative to the length of other long bones and other parts of the body. Brachydactyly is an inherited, dominant trait. It most often occurs as an isolated dysmelia, but can also occur ...