Dirty truckers looking at young girls crotch … May 20th, 2008 So when I am driving around on my photo shoot travels I get horny once on the while when on the road … so what’s a girl to do … I have to stick my hand in my pants and take care of business … of course sometimes it is very uncomfortable and I have to get the whole thing out there. So usually the truckers would watch … sometimes they wave and make dirty faces … I think they drive around with cock in their hand all the time anyway
Welcome to the 2nd entry of compelling evidence proving that Superman is WEAK! Personal life: Superman has no personal life, he was born Kal-el, not Clark Kent. But for the sake of argument, we’ll say Clark Kent: Spends his time reporting for the Globe, (which BY THE WAY, anyone who works in the newspaper business will tell you is a 24/7 job, so how can he be doing this effectively between changing identities?) The only benefit he provides to Metropolis as Clark Kent is reporting. Chasing aft
Filed under: Fantasy, Screenshots, Age of Conan, New titles, One Shots In honor of the release of Age of Conan today, we're sharing one of humorous screenshots we got from a reader who was in the Age of Conan pre-release. (It was the note that made us chuckle moreso than the screenshot, admittedly.) This screenshot comes to us from Kerrzhe, Tempest of Set from the Set server. Kerrzhe writes: This is the end of one of the first questlines you get when you first arrive in the Stygian city of Khe
Pete Wentz Has A Dream [Exercises In Biting The Hand]
Pete Wentz Has A Dream [Exercises In Biting The Hand] Posted on May 20th, 2008 by . Categories: Mtv, fall out boy, pete wentz, exercises in biting the hand. According to some of our commenters, showing music videos on television is a dead scene. However, one man is willing to stand up against the forces of commerce and targeted market research and make… Original post by Dan Gibson and software by Elliott Back Music Videos Burn DVDs Free Movie Downloads 0 comments.
The hands (med./lat.: manus, pl. manūs) are the two intricate, prehensile, multi-fingered body parts normally located at the end of each arm of a human or other primate. They are the chief organs for physically manipulating the environment, using anywhere from the roughest motor skills (wielding a club) to the finest (threading a needle), and since the fingertips contain some of the densest areas of nerve endings on the human body, they are also the richest source of tactile feedback so that sense of touch is intimately associated with human hands. Like other paired organs (eyes, ears, legs), each hand is dominantly controlled by the opposing brain hemisphere, and thus handedness, or preferred hand choice for single-handed activities such as writing with a pen, reflects a significant individual trait.
What constitutes a hand?
Many mammals and other animals have grasping appendages similar in form to a hand such as paws, claws, and talons, but these are not scientifically considered to be hands. The scientific use of the term hand to distinguish the terminations of the front paws from the hind ones is an example of anthropomorphism. The only true hands appear in the mammalian order of primates. Hands must also have opposable thumbs, as described later in the text.
Humans have only two hands (except in cases of polymelia), which are attached to the arms. Apes and monkeys are sometimes described as having four hands, because the toes are long and the hallux is opposable and looks more like a thumb, thus enabling the feet to be used as hands. Also, some apes have toes that are longer than human fingers.
Anatomy of the human hand
The human hand consists of a broad palm (metacarpus) with 5 digits, attached to the forearm by a joint called the wrist (carpus). The back of the hand is formally called the dorsum of the hand.
Digits
The four fingers on the hand are used for the outermost performance; these four digits can be folded over the palm which allows the grasping of objects. Each finger, starting with the one closest to the thumb, has a colloquial name to distinguish it from the others:
index finger (med./lat.:digitus secundus manus), pointer finger, or forefinger
middle finger (med./lat.:digitus me´dius)
ring finger (med./lat.:digitus annula´ris)
little finger (med./lat.:digitus mi´nimus ma´nus) or 'pinky'
The thumb (connected to the trapezium) is located on one of the sides, parallel to the arm. The thumb can be easily rotated 90°, on a level perpendicular to the palm, unlike the other fingers which can only be rotated approximately 45°. A reliable way of identifying true hands is from the presence of opposable thumbs. Opposable thumbs are identified by the ability to be brought opposite to the fingers, a muscle action known as opposition.
Bones
The human hand has 27 bones: the carpus or wrist account for 8; the metacarpus or palm contains 5; the remaining 14 are digital bones, your fingers and thumb. The eight bones of the wrist are arranged in two rows of four. These bones fit into a shallow socket formed by the bones of the forearm. The bones of proximal row are (from lateral to medial): scaphoid, lunate, triquetral and pisiform.
The bones of the distal row are (from lateral to medial): trapezium, trapezoid, capitate and hamate. The palm has 5 bones (metacarpals), one to each of the 5 digits. These metacarpals have a head and a shaft.
Human hands contain 14 digital bones, also called phalanx bones: 2 in the thumb (the thumb has no middle phalanx) and 3 in each of the four fingers. These are:
the distal phalanx, carrying the nail,
the middle phalanx and
the proximal phalanx.
Sesamoid bones are small ossified nodes embedded in the tendons to provide extra leverage and reduce pressure on the underlying tissue. Many exist around the palm at the bases of the digits; the exact number varies between different people.
Articulations
Also of note is that the articulation of the human hand is more complex and delicate than that of comparable organs in any other animals. Without this extra articulation, we would not be able to operate a wide variety of tools and devices. The hand can also form a fist, for example in combat, or as a gesture.
The articulations are:
interphalangeal articulations of hand
metacarpophalangeal joints
intercarpal articulations
wrist (may also be viewed as belonging to the forearm.)
Muscles and tendons
The movements of the human hand are accomplished by two sets of each of these tissues. They can be subdivided into two groups: the extrinsic and intrinsic muscle groups. The extrinsic muscle groups are the long flexors and extensors. They are called extrinsic because the muscle belly is located on the forearm.
The intrinsic muscle groups are the thenar and hypothenar muscles (thenar referring to the thumb, hypothenar to the small finger), the interosseus muscles (between the metacarpal bones, four dorsally and three volarly) and the lumbrical muscles. These muscles arise from the deep flexor (and are special because they have no bony origin) and insert on the dorsal extensor hood mechanism.
The fingers have two long flexors, located on the underside of the forearm. They insert by tendons to the phalanges of the fingers. The deep flexor attaches to the distal phalanx, and the superficial flexor attaches to the middle phalanx. The flexors allow for the actual bending of the fingers. The thumb has one long flexor and a short flexor in the thenar muscle group. The human thumb also has other muscles in the thenar group (opponens- and abductor muscle), moving the thumb in opposition, making grasping possible.
The extensors are located on the back of the forearm and are connected in a more complex way than the flexors to the dorsum of the fingers. The tendons unite with the interosseous and lumbrical muscles to form the extensorhood mechanism. The primary function of the extensors is to straighten out the digits. The thumb has two extensors in the forearm; the tendons of these form the anatomical snuff box. Also, the index finger and the little finger have an extra extensor, used for instance for pointing. The extensors are situated within 6 separate compartments. The 1st compartment contains abductor pollicis longus and extensor pollicis brevis. The 2nd compartment contains extensors carpi radialis longus and brevis. The 3rd compartment contains extensor pollicis longus. The extensor digitorum indicis and extensor digititorum communis are within the 4th compartment. Extensor digiti minimi is in the fifth, and extensor carpi ulnaris is in the 6th.
Variation
Some people have more than the usual number of fingers or toes, a condition called polydactyly. Others may have more than the typical number of metacarpal bones, a condition often caused by genetic disorders like Catel-Manzke syndrome. The average length of an adult male hand is 189 mm, while the average length of an adult female hand is 172 mm. The average hand breadth for adult males and females is 84 and 74 mm respectively.
See also
Hand strength
Dermatoglyphics
Digit ratio
Handanalysis
Hand fetishism
Handstand
Hand walking
Pentadactyl limb
Reflexology
Handedness
References
^ Three-armed boy to have surgery. BBC News (2006-05-31). Retrieved on 2007-12-24.
^ Nature Bulletin No. 611. Division of Educational Programs, Argonne National Laboratory (1960-10-01). Retrieved on 2007-12-24.
^ "hand". Oxford English Dictionary. Oxford University Press. 2nd ed. 1989.
^ Polydactyly and Syndactyly. Milton S. Hershey Medical Center, Pennsylvania State University. Retrieved on 2007-12-24.
^ Agnihotri, A. K.; B. Purwar, N. Jeebun, S. Agnihotri (2006). "Determination Of Sex By Hand Dimensions" 1 (2). The Internet Journal of Forensic Science. Retrieved on 2007-12-24.
External links
Biology Portal
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