Search results
Results from the WOW.Com Content Network
Congenital clasped thumb describes an anomaly which is characterized by a fixed thumb into the palm at the metacarpophalangeal joint in one or both hands. [5] The incidence and genetic background are unknown. A study of Weckesser et al. showed that boys are twice as often affected with congenital clasped thumb compared to girls.
Brachydactyly type D, also known as short thumb, [3] [1] stub thumb, [5] [6] or clubbed thumb, [5] [6] is a genetic trait recognised by a thumb being relatively short and round with an accompanying wider nail bed. The distal phalanx of such thumbs is approximately two-thirds the length of full-length thumbs.
If one were to fully extend the thumb and draw a line from the distal border of the thumb across the palm, this would be the level of the superficial palmar arch (Boeckel's line). The deep palmar arch is about a finger width proximal to this. The connection between the deep and superficial palmar arterial arches is an example of anastomosis. [1]
Outstretched hand (with palm up) is a near-universal gesture for begging or requesting, extending beyond human cultures and into other primate species. [23] This gesture can also be done with both hands to form a bowl. See also Origin of language. The "index finger pointing up" sign. Pointing with index finger may be used to indicate an item or ...
The peripheral metacarpals (those of the thumb and little finger) form the sides of the cup of the palmar gutter and as they are brought together they deepen this concavity. The index metacarpal is the most firmly fixed, while the thumb metacarpal articulates with the trapezium and acts independently from the others.
The abductor pollicis brevis is a flat, thin muscle located just under the skin. It is a thenar muscle, and therefore contributes to the bulk of the palm's thenar eminence. It originates from the flexor retinaculum of the hand, the tubercle of the scaphoid bone, and additionally sometimes from the tubercle of the trapezium.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Brachydactyly type D. "Stub Thumb" Referred to inaccurately as "clubbed thumbs". [11] Most common form of brachydactyly. It shortens the final bone in the thumbs and does not affect the fingers at all. [9] Type E, BDE: 113300: HOXD13: 2q31-q32: Brachydactyly type E. This is the rarest form of brachydactyly.