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The pituitary gland (or hypophysis) is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity (sella turcica) covered by a dural fold (diaphragma sellae).
The glands in this group can be divided into three groups: Merocrine glands – cells secrete their substances by exocytosis. (e.g. mucous and serous glands; also called "eccrine", e.g. major sweat glands of humans, goblet cells, salivary gland, tear gland and intestinal glands)
The abdominal organs may be classified as solid organs or hollow organs. The solid organs are the liver, pancreas, spleen, kidneys, and adrenal glands. The hollow organs of the abdomen are the stomach, intestines, gallbladder, bladder, and rectum. [6] In the thoracic cavity, the heart is a hollow, muscular organ. [7]
reproductive - male (gland) bulbourethral glands: Simple columnar - reproductive - male (gland) seminal vesicle: Pseudostratified columnar - respiratory: oropharynx: Stratified squamous, non-keratinized - respiratory: larynx: Pseudostratified columnar, ciliated: respiratory epithelium: respiratory: larynx - true vocal cords: Stratified squamous ...
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sweat gland. Skin secretions are those substances and materials that are secreted by the skin and the external mucous membranes. Some skin secretions are associated with body hair. Skin secretions originate from glands that in dermal layer of the epidermis. Sweat, a physiological aid to body temperature regulation, is secreted by eccrine glands.
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In the embryo, the epidermis, hair, and glands form from the ectoderm, which is chemically influenced by the underlying mesoderm that forms the dermis and subcutaneous tissues. [ 5 ] [ 6 ] [ 7 ] The epidermis is the most superficial layer of skin, a squamous epithelium with several strata : the stratum corneum , stratum lucidum , stratum ...