hand


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hand,

terminal part of the forelimb in primates. The human hand consists of the wrist, palm, four fingers, and thumb. In humans and other primates, the thumb is opposable, i.e., it can be moved into a position opposite to the other four digits. Opposable thumbs make possible precise movements such as grasping small objects. In vertebrates other than humans, the primary function of the hand is locomotion; the human hand, due to the evolutionary development of bipedalism, is freed for manipulative tasks. There are 27 bones in the human hand. The wrist, which joins the hand to the forearm, contains eight cubelike bones arranged in two rows of four bones each. The metacarpus, or palm, is composed of five long metacarpal bones. Fourteen phalangeal bones constitute the four fingers and thumb (three in each finger, two in the thumb). Ligaments interconnect the bones of the hand. The bones of the digits are anchored to muscles in the hand and to muscles in the arms and shoulders, through connections to tendons, permitting a wide range of movements. Among humans, the undersides of the fingers and palms have distinctive ridges, which improve grip and can be used as identification marks.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Hand

 

the terminal section of the upper extremity (arm) in man, capable of performing extremely delicate and differentiated movements.

The hand consists of the carpus, the metacarpus, and the digits. Of the eight bones of the carpus, which are arranged in two rows, three articulate with the bones of the forearm (the radiocarpal joint) and with those of the metacarpus, which make up the base of the hand. The basal phalanges of the fingers articulate with the metacarpal bones.

The fingers have great mobility. The first digit, or thumb, can be opposed to the remaining four digits. This is especially important for grasping and holding objects. Movement of the hand and fingers is made possible by muscles located both in the hand itself and in the forearm. The tendons of the hand muscles pass through the bone-fiber canals and are surrounded by sheaths that are longer in the first and fifth digits.

The muscles that move the hand and fingers are innervated by branches of the ulnar, radial, and median nerves. The hand receives its blood supply from the radial and ulnar arteries, which form deep and superficial arterial arches and plexuxes on the hand’s palmar surface. The deep and superficial venous networks pass into the antebrachial veins.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

hand

[hand]
(anatomy)
The terminal part of the upper extremity modified for grasping.
(control systems)
(textiles)
The quality or feel of a fabric.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

hand

1. The direction, left or right, of the swing of a door (when viewed from the side usually considered the outside) or associated doorframes or hardware. A left-hand door has hinges on the left and the door swings away; a left-hand reverse door swings toward the viewer. A right-hand door has hinges on the right and swings away. A right-hand reverse door swings toward the viewer.
2. Of a spiral stair, designates the direction of turn of the stair. Right-hand refers to a stair on which the user turns clockwise as he descends. Left-hand refers to a stair on which the user turns counter-clockwise ashe descends.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

hand

1. 
a. the prehensile part of the body at the end of the arm, consisting of a thumb, four fingers, and a palm
b. the bones of this part
2. the corresponding or similar part in animals
3. 
a. the cards dealt to one or all players in one round of a card game
b. a player holding such cards
c. one round of a card game
4. a member of a ship's crew
5. a unit of length measurement equalling four inches, used for measuring the height of horses, usually from the front hoof to the withers
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

HAND

(chat)
Have A Nice Day. Often used sarcastically and in connection with HTH, as in:

> Where's the point of alt.stupidity?

Between the 't' and the 's'. HTH. HAND.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Hands

(dreams)
We express ourselves with our hands, and appropriate reading of body language is a valuable source of information. Likewise, in the dream state the hands may reveal information about emotions, intentions, and overt behaviors. For example, if in your dream you see clenched fists you may have much repressed anger. Sometimes extended hands suggest a need to develop close friendships. If the hands in your dreams are stroking you, you may be feeling sexy.
Bedside Dream Dictionary by Silvana Amar Copyright © 2007 by Skyhorse Publishing, Inc.
References in classic literature ?
Not that she was not a nice bit of a woman, healthy and strapping and good to look upon, also a very excellent dancer, but that she was a woman with all a woman's desire to rope him with her apron-strings and tie him hand and foot for the branding.
From the little hallway she called back, her face suddenly alight: "Anyhow, I'm glad 'twasn't my mother's hand and heart that you wanted and couldn't get, Dr.
My bruised and swollen hands could no longer close on the oar handles.
My guardian was in his room, washing his hands with his scented soap, when I went into the office from Walworth; and he called me to him, and gave me the invitation for myself and friends which Wemmick had prepared me to receive.
No longer was I a jibbering idiot, but a sane, reasoning man with the means of escape within my very hands.
When he opens the door, candle in hand, his cheerful face falls, and disappointed amazement is in it.
"It's not a question of shooting with the right hand or the left; it's a question of holding one of your hands as though you were going to pull the trigger of a pistol with your arm bent.
Lorry laid his hand upon Defarge's arm; "do you remember nothing of this man?
And Bashti, his keen old ears pitched for the first untoward sound from on deck, had continually nodded his head and dipped his hand into the proffered basket--now for betel-nut, and lime-box, and the invariable green leaf with which to wrap the mouthful; now for tobacco with which to fill his short clay pipe; and, again, for matches with which to light the pipe which seemed not to draw well and which frequently went out.
His eyes and ears were open, and I think, my father, that he saw and understood; I think also that the hate upon my face as I shook my withered hand before him was more fearful to him that the pain of death.
Anna Mikhaylovna touched Pierre's hand and said, "Come." Pierre went with her to the bed on which the sick man had been laid in a stately pose in keeping with the ceremony just completed.
"Willingly," said the old man; "here it is senor," and he put it into his hand.