hand, grasping organ at the end of the forelimb of certain vertebrates that exhibits great mobility and flexibility in the digits and in the whole organ. It is made up of the wrist joint, the carpal bones, the metacarpal bones, and the phalanges. The digits include a medial thumb (when viewed with the palm down), containing two phalanges, and four fingers, each containing three phalanges. …
hand. IPA [hænd] 美式. 英式. n. 手; 支持某人; 不許干涉(某人/某物)!. ; 忙得不可開交 the palm/back of the hand 手掌/手背 in one's hand 在手中. adv. 在控制中 to have/get sth. in hand 掌控某事物/使某事物在掌握中 to take sb./sth. in hand 管束某人/控制某事物.
hand: [noun] the terminal part of the vertebrate forelimb when modified (as in humans) as a grasping organ : the body part at the end of the arm of a human, ape, or monkey. the forelimb segment (such as the terminal section of a bird's wing) of a vertebrate higher than the fishes that corresponds to the hand irrespective of its form or ...
2022年12月28日 · Also on the palmar surface of the hand, the thenar eminence has a corresponding, ‘fleshy’ region on the ulnar side of the hand. It is easily palpated and visible at the base of the little finger. This region is called the hypothenar eminence and consists of the four hypothenar muscles: abductor digiti minimi, flexor digiti minimi, opponens digiti minimi, and …
A hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs.A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints extremely similar to human fingerprints) are often described as having "hands" instead of paws on their front limbs.