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The male accessory glands are the ampullary gland, seminal vesicle, prostate, bulbourethral gland, and urethral gland. The products of these glands serve to nourish and activate the spermatozoa, to clear the urethral tract prior to ejaculation, serve as the vehicle of transport of the spermatozoa in the female tract, and to plug the female tract after placement of spermatozoa to help ensure ...
In human anatomy, the penis ( / ˈpiːnɪs /; pl.: penises or penes; from the Latin pēnis, initially "tail" [ 1]) is an external male sex organ ( intromittent organ) that serves as a passage for excretion of urine and ejaculation of semen. The main parts are the root, body, the epithelium of the penis including the shaft skin, and the foreskin ...
Organelle. In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body, hence organelle, the suffix -elle being a diminutive. Organelles are either separately enclosed within their own lipid ...
e. Human embryonic development or human embryogenesis is the development and formation of the human embryo. It is characterised by the processes of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, the development of the human body entails growth from a one-celled ...
The extracellular fluid compartment is further subdivided into the interstitial fluid and the intravascular fluid compartments. Body fluids, bodily fluids, or biofluids, sometimes body liquids, are liquids within the body of an organism. [ 1] In lean healthy adult men, the total body water is about 60% (60–67%) of the total body weight; it is ...
The internal anatomy of the clitoris, with the clitoral hood and labia minora indicated as lines. Most of the clitoris is composed of internal parts. Regarding humans, it consists of the glans, the body (which is composed of two erectile structures known as the corpora cavernosa), the prepuce, and the root. The frenulum is beneath the glans. [23]
t. e. The ovarian surface epithelium, also called the germinal epithelium of Waldeyer, [ 1] or coelomic epithelium, is a layer of simple squamous -to- cuboidal epithelial cells covering the ovary. [ 2] The term germinal epithelium is a misnomer as it does not give rise to primary follicles. [ 3]
History of anatomy. Dissection of a cadaver, 15th-century painting. The history of anatomy extends from the earliest examinations of sacrificial victims to the sophisticated analyses of the body performed by modern anatomists and scientists. Written descriptions of human organs and parts can be traced back thousands of years to ancient Egyptian ...