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  2. Human vestigiality - Wikipedia

    en.wikipedia.org/wiki/Human_vestigiality

    Human vestigiality. The muscles connected to the ears of a human do not develop enough to have the same mobility allowed to monkeys. Arrows show the vestigial structure called Darwin's tubercle. In the context of human evolution, vestigiality involves those traits occurring in humans that have lost all or most of their original function through ...

  3. Broken finger - Wikipedia

    en.wikipedia.org/wiki/Broken_finger

    A broken finger or finger fracture is a common type of bone fracture, affecting a finger. [1] Symptoms may include pain, swelling, tenderness, bruising, deformity and reduced ability to move the finger. [2] Although most finger fractures are easy to treat, failing to deal with a fracture appropriately may result in long-term pain and disability.

  4. Psychological adaptation - Wikipedia

    en.wikipedia.org/wiki/Psychological_adaptation

    A psychological adaptation is a functional, cognitive or behavioral trait that benefits an organism in its environment. Psychological adaptations fall under the scope of evolved psychological mechanisms (EPMs), [2] however, EPMs refer to a less restricted set. Psychological adaptations include only the functional traits that increase the ...

  5. Rolando fracture - Wikipedia

    en.wikipedia.org/wiki/Rolando_fracture

    Specialty. Hand surgery. The Rolando fracture is a type of broken finger involving the base of the thumb. [1] It is an intra-articular fracture. [2] It was first described in 1910 by Silvio Rolando. [3] It is typically T- or Y-shaped.

  6. Vestigiality - Wikipedia

    en.wikipedia.org/wiki/Vestigiality

    Vestigiality. In humans, the vermiform appendix is sometimes called a vestigial structure as it has lost much of its ancestral digestive function. Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. [1]

  7. Scaphoid fracture - Wikipedia

    en.wikipedia.org/wiki/Scaphoid_fracture

    Scaphoid fracture. A scaphoid fracture is a break of the scaphoid bone in the wrist. [1] Symptoms generally includes pain at the base of the thumb which is worse with use of the hand. [2] The anatomic snuffbox is generally tender and swelling may occur. [2]

  8. Ulnar collateral ligament injury of the thumb - Wikipedia

    en.wikipedia.org/wiki/Ulnar_collateral_ligament...

    Specialty. Hand surgery, orthopedics. Gamekeeper's thumb (also known as skier's thumb or UCL tear) is a type of injury to the ulnar collateral ligament (UCL) of the thumb. The UCL may be merely stretched, or it may be torn from its insertion site into the proximal phalanx of the thumb. [1] This condition is commonly observed among gamekeepers ...

  9. Phalanx bone - Wikipedia

    en.wikipedia.org/wiki/Phalanx_bone

    The phalanges are the bones that make up the fingers of the hand and the toes of the foot. There are 56 phalanges in the human body, with fourteen on each hand and foot. Three phalanges are present on each finger and toe, with the exception of the thumb and big toe, which possess only two. The middle and far phalanges of the fourth and ...