arm |
coat |
top 10 words in brain distribution (in article): muscle bone human animal structure nerve contain branch join limb |
top 10 words in brain distribution (in article): century wear world term type refer modern design begin american |
top 10 words in brain distribution (not in article): cell body form brain tissue organism function organ tea bacterium |
top 10 words in brain distribution (not in article): species state city head cross time cell form build bird |
times more probable under arm 30 20 10 6 4 2.5 1.25 1 1.25 2.5 4 6 10 20 30 times more probable under coat (words not in the model) | |
In anatomy, an arm'" is one of the upper limbs of an animal. The term "arm" can also be used for analogous structures, such as one of the paired upper limbs of a four-legged animal, or the arms of cephalopods. In the lexicon of human anatomy, the term "arm" refers specifically to the segment between the shoulder and the elbow. The segment between the elbow and wrist is the forearm. However, in colloquial speech the term "arm" often refers to the entire upper limb from shoulder to wrist. In primates the arms are richly adapted for both climbing and for more skilled, manipulative tasks. The ball and socket shoulder joint allows for movement of the arms in a wide circular plane, while the presence of two forearm bones which can rotate around each other allows for additional range of motion at this level. Anatomy of the human arm. The human arm contains 30 bones, joints, muscles, nerves, and blood vessels. Many of these muscles are used for everyday tasks. Bony structure and joints. The humerus is the (upper) arm bone. It joins with the scapula above at the shoulder joint (or glenohumeral joint) and with the ulna and radius below at the elbow joint. Elbow joint. The elbow joint is the hinge joint between the distal end of the humerus and the proximal ends of the radius and ulna. The humerus cannot be broken easily. Its strength allows it to handle loading up to 300lbs. Osteofascial compartments. The arm is divided by a fascial layer (known as lateral and medial intermuscular septa) separating the muscles into two "osteofascial compartments": The fascia merges with the periosteum (outer bone layer) of the humerus. The compartments contain muscles which are innervated by the same nerve and perform the same action. Two other muscles are considered to be partially in the arm: Cubital fossa. The cubital fossa is clinically important for venepuncture and for blood pressure measurement. It is an imaginary triangle with borders being: The structures which pass through the cubital fossa are vital. The order from which they pass into the forearm are as follows, from medial to lateral: Nerve supply. The musculocutaneous nerve, from C5, C6, C7, is the main supplier of muscles of the anterior compartment. It originates from the lateral cord of the brachial plexus of nerves. It pierces the coracobrachialis muscle and gives off branches to the muscle, as well as to brachialis and biceps brachii. It terminates as the anterior cutaneous nerve of the forearm. The radial nerve, which is from the fifth cervical spinal nerve to the first thoracic spinal nerve, originates as the continuation of the posterior cord of the brachial plexus. This nerve enters the lower triangular space (an imaginary space bounded by, amongst others, the shaft of the humerus and the triceps brachii) of the arm and lies deep to the triceps brachii. Here it travels with a deep artery of the arm (the profunda brachii), which sits in the radial groove of the humerus. This fact is very important clinically as a fracture of the bone at the shaft of the bone here can cause lesions or even transections in the nerve. Other nerves passing through give no supply to the arm. These include: Arteries. The main artery in the arm is the brachial artery. This artery is a continuation of the axillary artery. The point at which the axillary becomes the brachial is distal to the lower border of teres major. The brachial artery gives off an important branch, the profunda brachii (deep artery of the arm). This branching occurs just below the lower border of teres major. The brachial artery continues to the cubital fossa in the anterior compartment of the arm. It travels in a plane between the biceps and triceps muscles, the same as the median nerve and basilic vein. It is accompanied by venae comitantes (accompanying veins). It gives branches to the muscles of the anterior compartment. The artery is in between the median nerve and the tendon of | A coat'" is a long garment worn by both men and women, for warmth, protection or fashion. Coats typically have long sleeves and open down the front, closing by means of buttons, zippers, hook-and-loop fasteners, toggles, a belt, or a combination of these. Other possible ornaments include collars and shoulder straps. History of the word 'coat'. The Persians, based in what is now Iran, introduced two garments to the history of clothing: trousers and seamed fitted coats. "Coat" is one of the earliest clothing category words in English, attested as far back as the early Middle Ages. ("See also" Clothing terminology.) An early use of "coat" in English is coat of mail (chainmail), a tunic-like garment of metal rings, usually knee- or mid-calf length. The medieval and renaissance coat (generally spelled "cote" by costume historians) is a midlength, sleeved men's outer garment, fitted to the waist and buttoned up the front, with a full skirt: in its essentials, not unlike the modern coat. By the eighteenth century, overcoats had begun to supplant capes and cloaks as outer wear, and by the mid-twentieth century the terms "jacket" and "coat" became confused for recent styles; the difference in use is still maintained for older garments. Coats, Jackets and Overcoats. In the early nineteenth century, coats were divided into under-coats and overcoats. The term under-coat is now archaic but denoted the fact that the expression "coat" could be both the outermost layer for outdoor wear (overcoat) or the coat worn under that (under-coat). However, the term "coat" is increasingly beginning to denote just the overcoat rather than the under-coat. The older usage of the word "coat" can still be found in the expression "to wear a coat and tie", which does not mean that wearer has on an overcoat. Nor do the terms "tailcoat" or "morning coat" denote types of overcoat. Indeed, an overcoat may be worn over the top of a tailcoat. In tailoring circles, the tailor who makes all types of coats is called a "coat maker". Similarly, in both British and American English, the term "sports coat" is used to denote a type of jacket not worn as outerwear (overcoat). The term "jacket" is a traditional term usually used to refer to a specific type of short under-coat. Typical modern jackets extend only to the upper thigh in length, whereas older coats such as tailcoats are usually of knee length. The modern jacket worn with a suit is traditionally called a "lounge coat" (or a "lounge jacket") in British English and a "sack coat" in American English. The American English term is rarely used today. Traditionally, all men dressed in a "coat and tie", although this has become gradually less widespread since around the 1960s. Because the basic pattern for the stroller (black jacket worn with striped trousers in British English) and dinner jacket (tuxedo in American English) are the same as lounge coats, tailors traditionally call both of these special types of jackets a "coat". An overcoat is a long coat (at least mid-calf) designed to be worn as the outermost garment worn as outdoor wear; while this use is still maintained in some places, particularly in Britain, elsewhere the term "coat" is commonly used mainly denote only the overcoat, and not the under-coat. A "topcoat" is a slightly shorter overcoat, if any distinction is to be made. Overcoats worn over the top of knee length coats (under-coats) such as frock coats, dress coats, and morning coats are cut to be a little longer than the under-coat so as to completely cover it, as well as being large enough to accommodate the coat underneath. Coats of the 18th and 19th centuries. Some of these styles are still worn. Note that for this period, only coats of the under-coat variety are listed, and overcoats are excluded. Modern coats. The terms "coat" and "jacket" are used variously around the world, and we treat modern clothes as jackets. References. General: Picken, Mary Brooks: "The Fashion Dictionary", Funk and Wagnalls, 1957. (1973 edition ISBN 0-308-10052-2) |