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The thumb is the first digit of the hand, next to the index finger. [A] When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit. The Medical Latin English noun for thumb is pollex (compare hallux for big toe), and the corresponding adjective for thumb is pollical.
In human anatomy, the metacarpal bones or metacarpus, also known as the "palm bones", are the appendicular bones that form the intermediate part of the hand between the phalanges and the carpal bones (wrist bones), which articulate with the forearm.
The muscles of the thumb are nine skeletal muscles located in the hand and forearm. The muscles allow for flexion , extension , adduction , abduction and opposition of the thumb . The muscles acting on the thumb can be divided into two groups: The extrinsic hand muscles, with their muscle bellies located in the forearm, and the intrinsic hand ...
The radial nerve innervates the finger extensors and the thumb abductor; that is, the muscles that extend at the wrist and metacarpophalangeal joints (knuckles) and abduct and extend the thumb. The median nerve innervates the flexors of the wrist and digits, the abductors and opponens of the thumb, the first and second lumbricals. The ulnar ...
Older set of terminology shown in Parts of the Human Body: Posterior and Anterior View from the 1933 edition of Sir Henry Morris' Human Anatomy. Many of these terms are medical latin terms that have fallen into disuse. Front: Frons - forehead; Facies - face; Pectus - breast; Latus - flank; Coxa - hip; Genu - knee; Pes - foot; Back: Vertex ...
radial base of proximal phalanx of thumb and thumb extensors: superficial palmar arch: median nerve: abducts thumb: adductor pollicis: 2 1 adductor pollicis: Upper limb, Hand, Lateral volar, Thenar transverse head: anterior body of third metacarpal oblique head: bases of second and third metacarpals and adjacent trapezoid and capitate bones
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Educational Media Awareness Campaign ပအိုဝ်ႏ/Human anatomy/POTD 5; Usage on bg.wikipedia.org Фаланга (кост) Usage on br.wikipedia.org Oeñs; Usage on bs.wikipedia.org Prst; Članak prsta; Usage on ca.wikipedia.org Metacarp; Usage on cy.wikipedia.org Rhestr o esgyrn y sgerbwd dynol; Usage on de.wikipedia.org