Human anatomy Human anatomy A Bifid rib or bifurcated rib or sternum bifidum is a congenital abnormality occurring in about 1% of the population. The sternal end of the rib is cleaved into two. It is usually unilateral. ...more on Wikipedia about "Bifid rib"
The human abdomen (from the Latin word meaning "belly") is the part of the body between the pelvis and the thorax. Anatomically, the abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim. The pelvic brim stretches from the lumbosacral angle (the intervertebral disk between L5 and S1) to the pubic symphysis and is the edge of the pelvic inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear. ...more on Wikipedia about "Human abdomen"
Human anatomy or anthropotomy is a special field within anatomy. It studies gross structures and systems of the human body, leaving the study of tissues to histology and cells to cytology. ...more on Wikipedia about "Human anatomy"
The human back is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck and the shoulders. It is the surface opposite to the chest, its height being defined by the vertebral column (commonly referred to as the spine or backbone) and its breadth being supported by the ribcage and shoulders. ...more on Wikipedia about "Human back"
Human height, or stature, is the height of a human being. Height generally varies little between people compared to other anthropometric measures, usually exceptional height ( variance from the average of around 20%) is due to gigantism or dwarfism, but height normally falls within a certain range known as a normal distribution ( bell curve). Height is determined by the interaction of genes and environment. Final adult height may be attained anywhere from the early teens to early 20s, though it is most commonly reached during the mid teens for females and late teens for males. A person's height also varies over the course of the day, by an average of 19mm, gradually shrinking as the spine compresses over the course of a day, and stretching back out overnight (Tyrrell, et al. 1985). ...more on Wikipedia about "Human height"
Weight in measuring human body weight in the medical sciences and in sports is a measurement of mass, expressed in units of mass such as kilograms (kg) or pounds (lb). In Britain, the stone (14 lb = 6.35 kg) is still common for this purpose as well. ...more on Wikipedia about "Human weight"
An inverted nipple is a nipple that, instead of pointing outward, is retracted into the breast and sometimes cannot be seen. Inversion can occur only with stimulation or can be permanent, and it can occur in both women and men. One or both nipples can be inverted. ...more on Wikipedia about "Inverted nipple"
A lap is a surface created between the knee and waist of a bipedal being when it is in a seated position. A lap only exists in this seated form, and not when a being is standing erect or when it is laying down. ...more on Wikipedia about "Lap"
A typical adult human skeleton consists of the following 206 bones. (Numbers in bold refer to the diagram at right.) ...more on Wikipedia about "List of bones of the human skeleton"
The List of homologues of the human reproductive system shows how indifferent embryonic organs differentiate into the respective sex organs in males and females. Mullerian ducts are also referred to as paramesonephric ducts, and Wolffian ducts as mesonephric ducts. ...more on Wikipedia about "List of homologues of the human reproductive system"
The major systems of the human body are: ...more on Wikipedia about "List of human anatomical features"
This is a list of human anatomical parts named after people. ...more on Wikipedia about "List of human anatomical parts named after people"
This is a list of muscles of the human anatomy. There are approximately 650 skeletal muscles within the typical human. However, the exact number is difficult to define because different sources group muscles differently. ...more on Wikipedia about "List of muscles of the human body"
The panniculus adiposus is part of the subcutaneous tissue. It is a fatty layer deep to the skin. In certain animals, including humans, it is abundant and widely distributed, and contains fibrous bands connecting the overlying skin to deep fascia, as well as nerves, blood vessels and lymphatics to the skin. An animal with a well developed panniculus adiposus is difficult to skin. It serves as a substitute for a fur coat by adding an insulating layer in mammals who are "furless", including cetaceans, pigs, humans. ...more on Wikipedia about "Panniculus adiposus"
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The panniculus carnosus is part of the subcutaneous tissue. It consists of sheets of flat muscle contained in the panniculus adiposus. The general arrangement is that one end of the muscle sheet is attached to skin's dermis and the other is attached to deep fascia or bone. It therefore moves, wrinkles or dimples the skin. ...more on Wikipedia about "Panniculus carnosus"
René Descartes (1596-1650) was one of the first to conceive a model of reciprocal innervation (in 1626) as the principle that provides for the control of agonist and antagonist muscles. The concept of reciprocal innervation is associated with the notion of paired muscular activity. Skeletal muscles exist in antagonistic pairs, which work “against” one another. In order to reach optimum efficiency, one is inhibited while the other is excited. This reciprocal innervation occurs so that the contraction of a muscle results in the simultaneous relaxation of the corresponding other. ...more on Wikipedia about "Reciprocal innervation"
The superior thoracic aperture refers to the superior opening of the thoracic cavity. It is also referred to anatomically as the thoracic inlet and clinically as the thoracic outlet. It is important to note that the clinical entity called the Thoracic outlet syndrome does not refer to the inferior thoracic aperture. ...more on Wikipedia about "Superior thoracic aperture"
The Robert J. Terry Anatomical Skeletal Collection is a collection of some 1728 human skeletons held by the Department of Anthropology of the National Museum of Natural History of the Smithsonian Institution. ...more on Wikipedia about "Terry Collection"
The tertiary bronchi (also known as the segmental bronchi) arise from the secondary bronchi. The respiratory epithelium lining their lumen is surrounded by a layer of smooth muscle. This layer is composed of two ribbons of smooth muscle that spiral in opposite directions. The smooth muscle layer is surrounded by irregular plates of hyaline cartilage which help maintain the patency of the airway. ...more on Wikipedia about "Tertiary bronchus"
The Visible Human Project is an effort to create a detailed data set of cross-sectional photographs of the human body, in order to facilitate anatomy visualization applications. A male and a female cadaver were cut into thin slices which were then photographed and digitized. The project is run by the U.S. National Library of Medicine (NLM) under the direction of Michael J. Ackerman. Planning began in 1989; the dataset of the male was released in November 1994 and the one of the female in November 1995. ...more on Wikipedia about "Visible Human Project"
Vocal apparatus is a term used in phonetics to designate all parts of human anatomy that can be used to produce speech. This includes the lips, tongue, teeth, hard and soft palates, uvula, larynx, lungs, etc. ...more on Wikipedia about "Vocal apparatus"
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