It has been suggested that Foot type be merged into this article or section. (Discuss) Proposed since August 2009.

Foot
Latin	pes
Artery	dorsalis pedis, medial plantar, lateral plantar
Nerve	medial plantar, lateral plantar, deep fibular, superficial fibular
MeSH	Foot
Dorlands/Elsevier	Foot

The foot (plural feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails.

Culture[link]

Humans usually wear shoes or similar footwear covering material for protection from hazards when walking outside. Foot fetishism is the most common form of sexual fetish.^[1][2]

Human foot[link]

Anatomy[link]

The human foot and ankle is a strong and complex mechanical structure containing more than 26 bones, 33 joints (20 of which are actively articulated), and more than a hundred muscles, tendons, and ligaments.^[3]

An anthropometric study of 1197 North American adult Caucasian males (mean age 35.5 years) found that a man's foot length was 26.3 cm with a standard deviation of 1.2 cm.^[4]

The foot can be subdivided into the hindfoot, the midfoot, and the forefoot:

The hindfoot is composed of the talus (or ankle bone) and the calcaneus (or heel bone). The two long bones of the lower leg, the tibia and fibula, are connected to the top of the talus to form the ankle. Connected to the talus at the subtalar joint, the calcaneus, the largest bone of the foot, is cushioned inferiorly by a layer of fat.^[3]

The five irregular bones of the midfoot, the cuboid, navicular, and three cuneiform bones, form the arches of the foot which serves as a shock absorber. The midfoot is connected to the hind- and fore-foot by muscles and the plantar fascia.^[3]

The forefoot is composed of five toes and the corresponding five proximal long bones forming the metatarsus. Similar to the fingers of the hand, the bones of the toes are called phalanges and the big toe has two phalanges while the other four toes have three phalanges. The joints between the phalanges are called interphalangeal and those between the metatarsus and phalanges are called metatarsophalangeal (MTP).^[3]

Both the midfoot and forefoot constitute the dorsum (the area facing upwards while standing) and the planum (the area facing downwards while standing).

The instep is the arched part of the top of the foot between the toes and the ankle.

Skeleton[link]

A human foot; label three is the instep.

• tibia, fibula
• tarsus: talus, calcaneus, cuneiformes, cuboid, and navicular
• metatarsus: first, second, third, fourth, and fifth metatarsal bone
• phalanges

There can be many sesamoid bones near the metatarsophalangeal joints, although they are only regularly present in the distal portion of the first metatarsal bone.^[5]

Arches[link]

The human foot has two longitudinal arches and a transverse arch maintained by the interlocking shapes of the foot bones, strong ligaments, and pulling muscles during activity. The slight mobility of these arches when weight is applied to and removed from the foot makes walking and running more economical in terms of energy. As can be examined in a footprint, the medial longitudinal arch curves above the ground. This arch stretches from the heel bone over the "keystone" ankle bone to the three medial metatarsals. In contrast, the lateral longitudinal arch is very low. With the cuboid serving as its keystone, it redistributes part of the weight to the calcaneus and the distal end of the fifth metatarsal. The two longitudinal arches serve as pillars for the transverse arch which run obliquely across the tarsometatarsal joints. Excessive strain on the tendons and ligaments of the feet can result in fallen arches or flat feet.^[6]

Muscles[link]

The muscles acting on the foot can be classified into extrinsic muscles, those originating on the anterior or posterior aspect of the lower leg, and intrinsic muscles, originating on the dorsal or plantar aspects of the foot.

Extrinsic[link]

Anterior leg muscles.

All muscles originating on the lower leg except the popliteus muscle are attached to the bones of the foot. The tibia and fibula and the interosseous membrane separate these muscles into anterior and posterior groups, in their turn subdivided into subgroups and layers. ^[7]

Anterior group

Extensor group: tibialis anterior originates on the proximal half of the tibia and the interosseous membrane and is inserted near the tarsometatarsal joint of the first digit. In the non-weight-bearing leg tibialis anterior flexes the foot dorsally and lift its medial edge (supination). In the weight-bearing leg it brings the leg towards the back of the foot, like in rapid walking. Extensor digitorum longus arises on the lateral tibial condyle and along the fibula to be inserted on the second to fifth digits and proximally on the fifth metatarsal. The extensor digitorum longus acts similar to the tibialis anterior except that it also dorsiflexes the digits. Extensor hallucis longus originates medially on the fibula and is inserted on the first digit. As the name implies it dorsiflexes the big toe and also acts on the ankle in the unstressed leg. In the weight-bearing leg it acts similar to the tibialis anterior. ^[8]

Peroneal group: peroneus longus arises on the proximal aspect of the fibula and peroneus brevis below it on the same bone. Together, their tendons pass behind the lateral malleolus. Distally, peroneus longus crosses the plantar side of the foot to reach its insertion on the first tarsometatarsal joint, while peroneus brevis reaches the proximal part of the fifth metatarsal. These two muscles are the strongest pronators and aid in plantar flexion. Longus also acts like a bowstring that braces the transverse arch of the foot. ^[9]

Deep and superficial layers of posterior leg muscles

Posterior group

The superficial layer of posterior leg muscles is formed by the triceps surae and the plantaris. The triceps surae consists of the soleus and the two heads of the gastrocnemius. The heads of gastrocnemius arise on the femur, proximal to the condyles, and soleus arises on the proximal dorsal parts of the tibia and fibula. The tendons of these muscles merge to be inserted onto the calcaneus as the Achilles tendon. Plantaris originates on the femur proximal to the lateral head of the gastrocnemius and its long tendon is embedded medially into the Achilles tendon. The triceps surae is the primary plantar flexor and its strength becomes most obvious during ballet dancing. It is fully activated only with the knee extended because the gastrocnemius is shortened during knee flexion. During walking it not only lifts the heel, but also flexes the knee, assisted by the plantaris.^[10]

In the deep layer of posterior muscles tibialis posterior arises proximally on the back of the interosseous membrane and adjoining bones and divides into two parts in the sole of the foot to attach to the tarsus. In the non-weight-bearing leg, it produces plantar flexion and supination, and, in the weight-bearing leg, it proximates the heel to the calf. flexor hallucis longus arises on the back of the fibula (i.e. on the lateral side), and its relatively thick muscle belly extends distally down to the flexor retinaculum where it passes over to the medial side to stretch across the sole to the distal phalanx of the first digit. The popliteus is also part of this group, but, with its oblique course across the back of the knee, does not act on the foot. ^[11]

Intrinsic[link]

On the back (top) of the foot, the tendons of extensor digitorum brevis and extensor hallucis brevis lie deep to the system of long extrinsic extensor tendons. They both arise on the calcaneus and extend into the dorsal aponeurosis of digits one to four, just beyond the penultimate joints. They act to dorsiflex the digits. ^[12]

Plantar aspects of foot, varying depths (superficial to deep)

Similar to the intrinsic muscles of the hand, there are three groups of muscles in the sole of foot, those of the first and last digits, and a central group:

Muscles of the big toe: abductor hallucis stretches medially along the border of the sole, from the calcaneus to the first digit. Below its tendon, the tendons of the long flexors pass through the tarsal canal. It is an abductor and a weak flexor, and also helps maintain the arch of the foot. flexor hallucis brevis arises on the medial cuneiform bone and related ligaments and tendons. An important plantar flexor, it is crucial for ballet dancing. Both these muscles are inserted with two heads proximally and distally to the first metatarsophalangeal joint. Adductor hallucis is part of this group, though it originally formed a separate system (see contrahens.) It has two heads, the oblique head originating obliquely across the central part of the midfoot, and the transverse head originating near the metatarsophalangeal joints of digits five to three. Both heads are inserted into the lateral sesamoid bone of the first digit. Adductor hallucis acts as a tensor of the plantar arches and also adducts the big toe and then might plantar flex the proximal phalanx. ^[13]

Muscles of the little toe: Stretching laterally from the calcaneus to the proximal phalanx of the fifth digit, abductor digiti minimi form the lateral margin of the foot and is the largest of the muscles of the fifth digit. Arising from the base of the fifth metatarsal, flexor digiti minimi is inserted together with abductor on the first phalanx. Often absent, opponens digiti minimi originates near the cuboid bone and is inserted on the fifth metatarsal bone. These three muscles act to support the arch of the foot and to plantar flex the fifth digit. ^[14]

Central muscles of foot

Central muscle group: The four lumbricales arise on the medial side of the tendons of flexor digitorum longus and are inserted on the medial margins of the proximal phalanges. Quadratus plantae originates with two slips from the lateral and medial margins of the calcaneus and inserts into the lateral margin of the flexor digitorum tendon. It is also known as flexor accessorius. Flexor digitorum brevis arise inferiorly on the calcaneus and its three tendons are inserted into the middle phalanges of digits two to four (sometimes also the fifth digit). These tendons divide before their insertions and the tendons of flexor digitorum longus pass through these divisions. Flexor digitorum brevis flexes the middle phalanges. It is occasionally absent. Between the toes, the dorsal and plantar interossei stretch from the metatarsals to the proximal phalanges of digits two to five. The plantar interossei adducts and the dorsal interossei abducts these digits and are also plantar flexors at the metatarsophalangeal joints. ^[15]

Medical aspects[link]

Due to their position and function, feet are exposed to a variety of potential infections and injuries, including athlete's foot, bunions, ingrown toenails, Morton's neuroma, plantar fasciitis, plantar warts and stress fractures. In addition, there are several genetic disorders that can affect the shape and function of the feet, including a club foot or flat feet.

This leaves humans more vulnerable to medical problems that are caused by poor leg and foot alignments. Also, the wearing of shoes, sneakers and boots can impede proper alignment and movement within the ankle and foot. For example, High-heeled footwear are known to throw off the natural weight balance (this can also affect the lower back). For the sake of posture, flat soles and heels are advised.

A doctor who specializes in the treatment of the feet practices podiatry and is called a podiatrist. A pedorthist specializes in the use and modification of footwear to treat problems related to the lower limbs.

Fractures of the foot include:

• Lisfranc fracture — in which one or all of the metatarsals are displaced from the tarsus^[16]
• Jones fracture] — a fracture of the fifth metatarsal
• March fracture] — a fracture of the distal third of one of the metatarsals occurring because of recurrent stress
• Calcaneal fracture

Foot sweat is the major cause of foot odor. Sweat itself is odorless, but it creates a beneficial environment for certain bacteria to grow and produce bad-smelling substances.

Evolutionary variations[link]

A paw is the soft foot of a mammal, generally a quadruped, that has claws or nails. A hard foot is called a hoof.

Depending on style of locomotion, animals can be classified as plantigrade (sole walking), digitigrade (toe walking), or unguligrade (nail walking).

The metatarsals are the bones that make up the main part of the foot in humans, and part of the leg in large animals or paw in smaller animals. The number of metatarsals are directly related to the mode of locomotion with many larger animals having their digits reduced to two (elk, cow, sheep) or one (horse). The metatarsal bones of feet and paws are tightly grouped compared to, most notably, the human hand where the thumb metacarpal diverges from the rest of the metacarpus. ^[17]

See also[link]

Footnotes[link]

References[link]

• France, Diane L. (2008). Human and Nonhuman Bone Identification: A Color Atlas. CRC Press. ISBN 1-4200-6286-7. http://books.google.com/?id=Z-C1jKNgjmQC&pg=PA532. 
• Marieb, Elaine Nicpon; Hoehn, Katja (2007). Human anatomy & physiology. Pearson Education. ISBN 0-321-37294-8. http://books.google.com/?id=x1uEB68iitwC. 
• Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol. 1: Locomotor System (5th ed.). Thieme. ISBN 3-13-533305-1. 
• "Anatomy of the foot and ankle". Podiatry Channel. http://www.podiatrychannel.com/anatomy/index.shtml. Retrieved August 2009. 

External links[link]

Wikimedia Commons has media related to: Foot

Look up foot in Wiktionary, the free dictionary.

• Foot at the Open Directory Project

v t e Human regional anatomy (TA A01.1) Head Forehead · Ear · Jaw · Face (Cheek, Eye, Nose, Mouth, Chin) · Occiput · Scalp · Temple Neck Throat · Adam's apple Trunk Chest (Breast) · Abdomen (Navel) · Back · Pelvis (Sex organs) Limbs Upper limb Shoulder · Axilla · Arm Elbow · Forearm Wrist · Hand · Finger (Thumb · Index · Middle · Ring · Little) Lower limb/ (see also leg) Hip · Buttocks · Thigh Knee · Calf · Crus Ankle · Heel · Foot · Toe (Hallux · Long  • Third  • Fourth  • Fifth) · Sole General anatomy: systems and organs, regional anatomy, planes and lines, superficial axial anatomy, superficial anatomy of limbs

Rémi Gaillard
Gaillard in 2011
Born	(1975-02-07) February 7, 1975 (age 37)
Occupation	Pranker, Humorist
Years active	1999–present
Home town	Montpellier, France
Internet information
Web alias(es)	Rémi Gaillard
Web hosting service(s)	YouTube
Website
nimportequi.com.

Rémi Gaillard (born 7 February 1975 in Montpellier, France) is a French humorist who uploads videos on YouTube. After losing his job at a shoe store, Rémi then began to use his free time to have fun and run some pranks on the public. He is the seventeenth most subscribed comedian on YouTube.^[1]

Gaillard gained attention in the French media after performing a well-documented series of pranks, including an appearance disguised as a Lorient soccer player in the 2002 Coupe de France final match, during which he took part in the winners' celebrations and was greeted by the then president of the French Republic, Jacques Chirac. He is also an extremely talented soccer player and has posted videos of his skills.

Gaillard has appeared in several sport events, TV game shows and political rallies.

Concept[link]

Rémi Gaillard became famous for his videos where he displays an "outrageous" style of humour, challenging public norms.^[2] Recurring themes include dressing up as and interpreting the behaviour of various animals in public, racing unsuspecting car-drivers whilst dressed up as Mario, and numerous provocative interactions with parking enforcement officers and the police.

Through his various stunts and pranks Rémi is involved in Culture jamming. In his videos, he is often found mocking the law and induces his viewers to think twice about the norms in today's society.

Gaillard's satirical motto is C'est en faisant n'importe quoi qu'on devient n'importe qui (literally, "It's by doing anything, that one becomes anybody").

Sketches[link]

The majority of Gaillard's sketches are of the hidden camera type, often disguising himself in outlandish costumes for his pranks. In some videos, Gaillard is accompanied by a crowd of friends, giving the action a flashmob-like nature.

Gaillard shot his first sketch in 1999^[2] with a friend in Montpellier, and in 2001, he launched his website nimportequi.com.^[2]

He gained notoriety in 2002 at the finals of the Coupe de France. Disguised as an FC Lorient player, he celebrated the team's victory with the players, shook the hand of the then French President Jacques Chirac and signed autographs, without anyone realizing that he was not a player on the team.

He achieved further YouTube notoriety through his Rocky Balboa parodies, Pac Man costume prank, Mario Kart prank, and his soccer videos. His recent pranks often entail dressing up in large animal costumes; namely, a pig, dog, cat, turtle, snail, bee, shark, kangaroo, spider, beaver, fly, gorilla, chicken, penguin, giraffe, rabbit, butterfly, bat and a sheep.

He occasionally ran into some trouble while shooting his videos but never of the legal kind. He does not have a police record. ^[3]

In 2007, he gained the attention of journalists from Le Monde and made occasional television appearances.^{[citation needed]}. Gaillard also appeared in Orangina, Pepsi, Durex and LG commercials.^{[citation needed]}

On his official site, Gaillard claims over 1.35 billion views on his videos on the web.^[4]. As each of his videos claim at least 1,000,000 views. His most popular video, "Mario Kart", has over 47 million views alone.^[5]

References[link]

External links[link]

• Official website
• Gaillard's channel on YouTube
• Gaillard's Dailymotion channel

Katherine Scott may refer to:

• Catherine Scott, Jamaican athlete
• Kathryn Sarah Scott, Christian songwriter
• Kathryn Leigh Scott, actress and writer
• Catherine Amy Dawson Scott, English writer, playwright and poet
• Cathy Scott, American writer and journalist

See also[link]

• Kate Scott, character

This disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article.

Dana Kunze is a champion high-diver. He has held the world records for the highest dives. Dana Kunze began his professional high diving career in 1974 at the age of 13.^[1] He won his first world championship 1977 and maintained a winning streak for seven years.^[1] Dana now maintains a company that produces High Dive Shows.^[1] He was tied with the world record for highest dive at 52.4 m (172 ft)^[1] until 1985, when Randy Dickison (fracturing his leg in the process) set a record of 174 feet 8 inches at an event in Hong Kong. ^[2][3] In 1987, the current record of 53.9 m (177 ft) was set by Olivier Favre.^[4][5]

Notes[link]

External links[link]

• Youtube video of him tying world record

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