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Ball (foot)
The ball of the foot is the padded portion of the sole between the toes and the arch, underneath the heads of the metatarsal bones. In comparative foot morphology, the ball is most analogous to the metacarpal (forepaw) or metatarsal (hindpaw) pad in many mammals with paws, and serves mostly the same functions. The ball is a common area in which people develop pain, known as metatarsalgia. People who frequently wear high heels often develop pain in the balls of their feet from the immense amount of pressure that is placed on them for long periods of time, due to the inclination of the shoes. To remedy this, there is a market for ball-of-foot or general foot cushions that are placed into shoes to relieve some of the pressure. Alternately, people can have a procedure done in which a dermal filler is injected into the balls of the feet to add cushioning. See also * Fat pad * Metatarsophalangeal joint The metatarsophalangeal joints (MTP joints) are the joints between the me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sole (foot)
In humans, the sole of the foot is anatomically referred to as the plantar aspect. Structure The glabrous skin on the sole of the foot lacks the hair and pigmentation found elsewhere on the body, and it has a high concentration of sweat pores. The sole contains the thickest layers of skin on the body due to the weight that is continually placed on it. It is crossed by a set of creases that form during the early stages of embryonic development. Like those of the palm, the sweat pores of the sole lack sebaceous glands. The sole is a sensory organ by which the ground can be perceived while standing and walking. The subcutaneous tissue in the sole has adapted to deal with the high local compressive forces on the heel and the ball (between the toes and the arch) by developing a system of "pressure chambers." Each chamber is composed of internal fibrofatty tissue covered by external collagen connective tissue. The septa (internal walls) of these chambers are permeated by n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toes
Toes are the digits of the foot of a tetrapod. Animal species such as cats that walk on their toes are described as being ''digitigrade''. Humans, and other animals that walk on the soles of their feet, are described as being ''plantigrade''; ''unguligrade'' animals are those that walk on hooves at the tips of their toes. Structure There are normally five toes present on each human foot. Each toe consists of three phalanx bones, the proximal, middle, and distal, with the exception of the big toe (). For a minority of people, the little toe also is missing a middle bone. The hallux only contains two phalanx bones, the proximal and distal. The joints between each phalanx are the interphalangeal joints. The proximal phalanx bone of each toe articulates with the metatarsal bone of the foot at the metatarsophalangeal joint. Each toe is surrounded by skin, and present on all five toes is a toenail. The toes are, from medial to lateral: * the first toe, also known as the ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arches Of The Foot
The arches of the foot, formed by the tarsal and metatarsal bones, strengthened by ligaments and tendons, allow the foot to support the weight of the body in the erect posture with the least weight. They are categorized as longitudinal and transverse arches. Structure Longitudinal arches The longitudinal arches of the foot can be divided into medial and lateral arches. Medial arch The medial arch is higher than the lateral longitudinal arch. It is made up by the calcaneus, the talus, the navicular, the three cuneiforms (medial, intermediate, and lateral), and the first, second, and third metatarsals. Its summit is at the superior articular surface of the talus, and its two extremities or piers, on which it rests in standing, are the tuberosity on the plantar surface of the calcaneus posteriorly and the heads of the first, second, and third metatarsal bones anteriorly. The chief characteristic of this arch is its elasticity, due to its height and to the number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metatarsal Bones
The metatarsal bones or metatarsus (: metatarsi) are a group of five long bones in the midfoot, located between the tarsal bones (which form the heel and the ankle) and the phalanges ( toes). Lacking individual names, the metatarsal bones are numbered from the medial side (the side of the great toe): the first, second, third, fourth, and fifth metatarsal (often depicted with Roman numerals). The metatarsals are analogous to the metacarpal bones of the hand. The lengths of the metatarsal bones in humans are, in descending order, second, third, fourth, fifth, and first. A bovine hind leg has two metatarsals. Structure The five metatarsals are dorsal convex long bones consisting of a shaft or body, a base ( proximally), and a head ( distally).Platzer 2004, p. 220 The body is prismoid in form, tapers gradually from the tarsal to the phalangeal extremity, and is curved longitudinally, so as to be concave below, slightly convex above. The base or posterior extremity is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparative Foot Morphology
Comparative foot morphology involves comparing the form of distal limb structures of a variety of terrestrial vertebrates. Understanding the role that the foot plays for each type of organism must take account of the differences in body type, foot shape, arrangement of structures, loading conditions and other variables. However, similarities also exist among the feet of many different terrestrial vertebrates. The paw of the dog, the hoof of the horse, the ''manus'' (forefoot) and ''pes'' (hindfoot) of the elephant, and the foot of the human all share some common features of structure, organization and function. Their foot structures function as the load-transmission platform which is essential to balance, standing and types of locomotion (such as walking, trotting, galloping and running). The discipline of biomimetics applies the information gained by comparing the foot morphology of a variety of terrestrial vertebrates to human-engineering problems. For instance, it m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metatarsalgia
Metatarsalgia, literally 'metatarsal pain' and colloquially known as a stone bruise, is any painful foot condition affecting the metatarsal region of the foot. This is a common problem that can affect the joints and bones of the metatarsals. Metatarsalgia is most often localized to the first metatarsal head – the ball of the foot just behind the big toe. There are two small sesamoid bones under the first metatarsal head. The next most frequent site of metatarsal head pain is under the second metatarsal. This can be due to either too short a first metatarsal bone or to "hypermobility of the first ray" – metatarsal bone and medial cuneiform bone behind it – both of which result in excess pressure being transmitted into the second metatarsal head. Symptoms Metatarsalgia is characterized by a sharp pain in the ball of the foot. Causes One cause of metatarsalgia is Morton's neuroma. When toes are squeezed together too often and for too long, the nerve that runs between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-heeled Footwear
High-heeled shoes, also known as high heels (colloquially shortened to heels), are a type of shoe with an upward-angled sole. The heel in such shoes is raised above the ball of the foot. High heels cause the legs to appear longer, make the wearer appear taller, and accentuate the calf muscle. There are many types of high heels in varying styles, heights, and materials. High heels have been used in various ways to convey nationality, professional affiliation, gender, and social status. High heels have been an important statement piece of fashion for centuries in the West. High heels spread from equestrian origins with the 10th century Persian galesh to wider fashion use. In early 17th-century Europe, high heels were a sign of masculinity and high social status. Towards the end of the century, the trend began to spread to women's fashion. By the 18th century, high-heeled shoes had split along gender lines. By this time, heels for men were chunky squares attached to riding boot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoe Insert
A removable shoe insert, otherwise known as a foot orthosis, insole or inner sole, accomplishes many purposes, including daily wear comfort, height enhancement, plantar fasciitis treatment, arch support, foot and joint pain relief from arthritis, overuse, injuries, leg length discrepancy, and other causes such as orthopedic correction and athletic performance. Medical use of foot orthoses has been criticized as lacking evidence of benefit, and practice is very inconsistent: reputed podiatrists prescribe completely different orthoses for a single patient. Further, effect of a given design of orthosis varies significantly by patient, and standard practice to personalize prescription is not available. However, evidence is mixed: patients often report at least short-term improvements in comfort, and other studies have found effectiveness. Fitting patients There are three standard methods for fitting patients: plaster casts, foam box impressions, or three-dimensional computer imaging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fat Pad
A fat pad (aka haversian gland) is a mass of closely packed fat cells surrounded by fibrous tissue septa.TheFreeDictionary > Fat padCiting: Mosby's Medical Dictionary, 8th edition. 2009 They may be extensively supplied with capillaries and nerve endings. Examples are: * ''Intraarticular fat pads''. These are also covered by a layer of synovial cells. A fat pad sign is an elevation of the anterior and posterior fat pads of the elbow joint, and suggests the presence of an occult fracture. * Buccal fat pad can be seen in nursing babies. * The fat pad of the labia majora, which can be used as a graft Graft or grafting may refer to: *Graft (politics), a form of political corruption *Graft, Netherlands, a village in the municipality of Graft-De Rijp Science and technology *Graft (surgery), a surgical procedure *Grafting, the joining of plant ti ..., often as a so-called "Martius labial fat pad graft", which can be used, for example, in urethrolysis. *Fat pads within the heels which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metatarsophalangeal Joint
The metatarsophalangeal joints (MTP joints) are the joints between the metatarsal bones of the foot and the proximal bones (proximal phalanges) of the toes. They are analogous to the knuckles of the hand, and are consequently known as toe knuckles in common speech. They are condyloid joints, meaning that an elliptical or rounded surface (of the metatarsal bones) comes close to a shallow cavity (of the proximal phalanges). The region of skin directly below the joints forms the Ball (foot), ball of the foot. The ligaments are the plantar and two collateral. Movements The movements permitted in the metatarsophalangeal joints are flexion, Extension (kinesiology), extension, List of abductors of the human body, abduction, List of adductors of the human body, adduction and Circumduction (anatomy), circumduction. File:The feet of C. H. Unthan, the armless fiddler Wellcome L0034227.jpg, Left: toes adducted (pulled towards the center) and spread (abducted); right, both feet clenched (p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactile Pad
A tactile pad is an area of skin that is particularly sensitive to pressure, temperature, or pain. Tactile pads are characterized by high concentrations of free nerve endings. In primates, the last phalanges The phalanges (: phalanx ) are digit (anatomy), digital bones in the hands and foot, feet of most vertebrates. In primates, the Thumb, thumbs and Hallux, big toes have two phalanges while the other Digit (anatomy), digits have three phalanges. ... in the fingers and toes have tactile pads, allowing very accurate manipulation of objects. This precision grip was an important evolutionary advance in primates. References somatosensory system {{Anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
