The Human Hand Essay, Research Paper

Without the manus, it would be about impossible for the universe to be the manner it is

today. The importance of this organic structure portion is highly indispensable for worlds to last. The

manus helps to execute in mundane undertakings such as opening a Coke bottle or composing a

research paper. This is likely one of the most of import organic structure parts of the human organic structure.

Without the manus, worlds would be unable to do and utilize the tools which led them into

the age of today.

The human manus is made up of 27 different castanetss. Eight wrist bone castanetss which make

up the carpus. Five metacarpal castanetss that make up the thenar. And 14 phalangees

which make up the fingers. The Carpal castanetss are arranged in two rows of four. The row

nearest the forearm is called the proximal row. The row nearest the thenar is called the

distal row. The carpal castanetss are little, cubelike, and each has six sides except for the

pisiform, which has five sides. The metacarpal castanetss are the five long castanetss of the thenar.

They are named the first, 2nd, 3rd, 4th and 5th Metacarpal, the first being the 1

taking to the pollex. The Phalangees are the castanetss of the fingers. Each finger contains

three, while the pollex has two.

There are 12 different musculuss of the manus which are divided into three

different groups. The musculuss of the pollexs make up the Thenar Eminence. The musculuss

that form the other fingers ( besides know as babe fingers ) are called the Hypothenar

Eminence. Twenty musculuss from the forearm besides control the custodies motions. These

are the flexors, extensors, supinators, pronat

Oregons. The flexors help flex the carpus and

fingers. The extensors help to widen the carpus and fingers. The supinators assist in

turning the thenar upward. The pronators help turn the thenar downward.

There are many different disease that can consequence the manus. Some of these include

carpal tunnel syndrome, ganglion cysts, dupuytren & # 8217 ; s contracture, and de quervain & # 8217 ; s. Carpal

tunnel syndrome is when there is hurting caused in the manus when the average nervus ( a nervus

which travels through the arm to provide musculuss in the forearm and manus the esthesis in

the manus ) is compressed by fibres of the transverse carpal ligament ( a strong hempen

ligament which runs across the junction of the thenar and wrist beneath the tegument ) . A

ganglion cyst is when a jellylike bubble fills up with fluid under the tegument. Dupuytrens

contracture is a disease of the tough bed of hempen tissue between the tegument of the thenar,

and the implicit in flexor sinews of the fingers. Basically, the tissue on the palm side of

the manus thickens, and psychiatrists, and produces a stringency in the country of the manus which the

diseased tissue overlies. It is a really common job and frequently arises in the custodies of

in-between aged people. DeQuervain & # 8217 ; s Tenosynovitis is a specific type of this redness

which involves the sinews of two specific musculuss on the thumb side of the manus

The manus is a really complex and of import portion of the organic structure. Without it we

wouldn T be able to transport out mundane maps such as eating with a fork are typing on

the computing machine. The castanetss and musculuss of the manus work together to do the map of

the manus possible.