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Parts of plant stem Euonymus alata, an example of alate stems Saraca cauliflora, an example of cauliflora Sciadopitys verticillata, an example of a verticillate plant. Accessory buds – an embryonic shoot occurring above or to the side of an axillary bud; also known as supernumerary bud. Acrocarpous – produced at the end of a branch.
References may also take origin from superficial anatomy, made to landmarks that are on the skin or visible underneath. [45] For example, structures may be described relative to the anterior superior iliac spine, the medial malleolus or the medial epicondyle. Anatomical lines are theoretical lines, used to describe anatomical location.
Examples: The thumb is on the radial side of the hand (the same as saying the lateral side); the ulnar side of the wrist is the side toward the little finger (medial side). Ventral and dorsal , which describe structures derived from the front (ventral) and back (dorsal) of the embryo , before limb rotation.
Human anatomy is the scientific study of the morphology of the adult human. It is subdivided into gross anatomy and microscopic anatomy . Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by unaided vision.
Point of origin may refer to: Point of Origin, a 2002 biographical crime film; Point of Origin, a crime fiction novel by Patricia Cornwell "Point of Origin", an episode of season 5 of the US medical drama ER "Point of Origin" (The Inside episode) Point of Origin (There for Tomorrow album), 2004; Point of Origin (Person of Interest), 2014
The origin of a muscle is the bone, typically proximal, which has greater mass and is more stable during a contraction than a muscle's insertion. [14] For example, with the latissimus dorsi muscle, the origin site is the torso, and the insertion is the arm. When this muscle contracts, normally the arm moves due to having less mass than the torso.
The Hippocratic work, On the Heart, for example, contributed a great deal of knowledge to the field of anatomy, even as many of its assumptions regarding physiology were incorrect. [ 6 ] The philosopher Aristotle (4th century BCE), alongside some of his contemporaries, labored to produce a system that made room for empirical research.
The formal definition specifies only the three points listed above, sufficient to describe a plane in three-dimensional space. For purposes of comparison of human skulls with those of some other species, notably hominids and primates , the skulls may be studied in the Frankfurt plane; nonetheless, the Frankfurt plane is not considered to be the ...