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In walking, and for many animals running, the motion of legs on either side of the body alternates, i.e. is out of phase. Other animals, such as a horse when galloping, or an inchworm, alternate between their front and back legs. In saltation (hopping) all legs move together, instead of alternating. As a main means of locomotion, this is ...
The "anti-confronted animals" is the opposing motif, with the animals back to back. Bilateral symmetry is a dominant aspect of our world and strong representation of it with matching figures often creates a balance that is appealing in artwork. In ancient art, confronted-animal motifs often involve the Master of Animals, a central human figure ...
Genu recurvatum is a deformity in the knee joint, so that the knee bends backwards. In this deformity, excessive extension occurs in the tibiofemoral joint. Genu recurvatum is also called knee hyperextension and back knee. This deformity is more common in women [citation needed] and people with familial ligamentous laxity. [2]
The backward-pointing "heel" that is easily visible is a joint between the tibiotarsus and tarsometatarsus. [3] [4] The joint inside the tarsus occurs also in some reptiles. It is worth noting here that the name "thick knee" of the members of the family Burhinidae is a misnomer because their heels are large. [2] [8]
Supine position: lying on the back with the face up; Prone position: lying on the chest with the face down ("lying down" or "going prone") Lying on either side, with the body straight or bent/curled forward or backward; Fetal position: is lying or sitting curled, with limbs close to the torso and the head close to the knees
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Bipedalism is a form of terrestrial locomotion where an animal moves by means of its two rear (or lower) limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped / ˈ b aɪ p ɛ d /, meaning 'two feet' (from Latin bis 'double' and pes 'foot').
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