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Elements of the human body by mass. Trace elements are less than 1% combined (and each less than 0.1%).; Element: Symbol: Percent mass: Percent atoms: Oxygen O 65.0 24.0 Carbon C 18.5
Limbs are attached to the torso via girdles, either the pectoral girdle for the forelimbs, or the pelvic girdle for the hindlimbs.In terrestrial tetrapods, the pectoral girdles are more mobile, floating over the rib cage connected only via the clavicles (to the sternum) and numerous muscles; while the pelvic girdles are typically fused together anteriorly via a fibrocartilaginous joint and ...
In human anatomy, the penis (/ ˈ p iː n ɪ s /; pl.: penises or penes; from the Latin pēnis, initially "tail" [1]) is an external sex organ (intromittent organ) through which males urinate and ejaculate.
The term vagina is from Latin vāgīna, meaning "sheath" or "scabbard". [1] The vagina may also be referred to as the birth canal in the context of pregnancy and childbirth. [2] [3] Although by its dictionary and anatomical definitions, the term vagina refers exclusively to the specific internal structure, it is colloquially used to refer to the vulva or to both the vagina and vulva.
English: Complete demonstration of the orgasm process of an adult male. The subject is a 27-year-old healthy circumcised Caucasian male. The video begins with the subject's genitals in a non-aroused flaccid state (0:00).
Image showing the human trunk with positions of the organs. The kidneys are at the vertebral level of T12 to L3.. In humans, the kidneys are located high in the abdominal cavity, one on each side of the spine, and lie in a retroperitoneal position at a slightly oblique angle. [9]
Inner ear. The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear.In vertebrates, the inner ear is mainly responsible for sound detection and balance. [1]
In mammals, invertebrates and most fish, [1] [2] the anus (pl.: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the exit end of the digestive tract (), i.e. the opposite end from the mouth.