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.

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.

hand

[hand]
(anatomy)
The terminal part of the upper extremity modified for grasping.
(control systems)
(textiles)
The quality or feel of a fabric.

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.

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

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.

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.
References in classic literature ?
The Spada family was one of the oldest and most powerful families of the fifteenth century; and in those times, when other opportunities for investment were wanting, such accumulations of gold and jewels were by no means rare; there are at this day Roman families perishing of hunger, though possessed of nearly a million in diamonds and jewels, handed down by entail, and which they cannot touch.
Qatar yesterday expressed "deep concern" over a death sentence handed down by an Egyptian court against Mohamed Mursi and called for his release.
HOUSEBUILDER McCarthy and Stone has found that when it comes to celebrating special occasions, Christmas, or even the evening meal, family recipes handed down from generation to generation are the go-to choice for families in the North East.
by Zarghona Salehi on 7 September, 2014 - 15:53 KABUL (Pajhwok): All the seven accused in the Paghman gang-rape case were on Sunday handed down death sentence by a primary court in the central capital Kabul, as protests against the widely condemned incident continued.
Speaking today, the Minister said: I note the judgment handed down in the case taken by Drumragh Integrated College.
The Tel Aviv district court handed down the punishment in the Jerusalem real estate scandal case related to Olmert's activities before becoming prime minister in 2006.
The court also upheld the four-year prison term handed down to a compatriot accomplice of the accused for using hashish and an additional year for molestation.
Summary: Supreme Court upholds death sentence handed down against teacher convicted of kidnapping and raping eight young girls.
The Suzak district court handed down life sentence to Janybek Bakiev, the brother of former President of Kyrgyzstan Kurmanbek Bakiev, the General Prosecutor's Office said.
Summary: The Military Tribunal handed down a death sentence in absentia to a retired Lebanese colonel for collaborating with Israel, a judicial source told The Daily Star over the weekend.
TEHRAN (FNA)- Lebanon's Military Tribunal handed down a death sentence in absentia to a retired Lebanese colonel for collaborating with Israel.
It read: "The FIA duly notes the decision handed down by the FIA International Tribunal against Mercedes AMG Petronas F1 Team and Pirelli Tyres.