Glands in Biological Definition

Hormone

... known hormones are those produced by endocrine glands of vertebrate animals, but hormones are ... of regulatory molecules. The classical endocrine glands and their hormone products are specialized to ... of hormone production of other endocrine glands . For example: thyroid-stimulating hormone (TSH) ...

Skin

... nerves, hair follicles, smooth muscle , glands and lymphatic tissue . It is made up of dense ... (fat storage) and macrophages . Sebaceous glands are exocrine glands which produce sebum , a mixture of lipids and ...

Digestion

... where food is chewed with the teeth . The process stimulates exocrine glands in the mouth to release digestive enzymes such as salivary amylase , ... system: Gastrin - is in the stomach and stimulates the gastric glands to secrete pepsinogen and hydrochloric acid . Secretion of gastrin is ...

Anatomy

... bone (clavicle) Thigh bone (femur) Humerus Mandible Patella Radius Skull Tibia Ulna Rib Vertebrae glands : Ductless gland Mammary gland Salivary gland Thyroid gland Parathyroid gland Adrenal gland Pituitary gland Pineal ...

Blood

... is termed hematopoiesis . The proteinaceous component is produced overwhelmingly in the liver , while hormones are produced by the endocrine glands and the watery fraction maintained by the gut and the kidney . Blood cells are degraded by the spleen and the Kuppfer cells in the liver. ...

Cancer

... of cell in which it originates and by the location of the cell. Carcinomas originate in epithelial cells , e.g. skin , digestive tract or glands . Leukemia starts in the bone marrow stem cells . Lymphoma is a cancer originating in lymphatic tissue . Melanoma arises in melanocytes . ...

Carolus Linnaeus

... meant the chimpanzee currently most often placed in a different genus as Pan troglodytes ). The group " mammalia " are named for their mammary glands because one of the defining characteristics of mammals is that they nurse their young. (Of all the features distinguishing the mammals from other ...

Herpetology

... like fish, and are often bound to water for at least some part of their life, if only the laying of eggs or birth of young. Their skins have many glands and are often toxic. Reptiles, by contrast, have a dry watertight skin, usually protected by scales , that normally has few if any glands. The ...

Leaf

... pubescent: covered with erect hairs (especially soft and short ones) punctate: marked with dots; dotted with depressions or with translucent glands or colored dots. rugose: deeply wrinkled; with veins clearly visible. scurfy: covered with tiny, broad scalelike particles. tuberculate: ...

Malaria

... 5 External links Mechanism of the disease Infected female Anopheles mosquitoes carry Plasmodium sporozoites in their salivary glands . If they bite a person, which they usually do starting at dusk and during the night, the sporozoites enter the person's body via the mosquito's ...

Semen

... by the seminal vesicles , and most of the remainder is generated by the prostate . A small amount of viscous mucus secreted by the bulbourethral glands contributes to the cohesive jelly-like texture of semen. Seminal plasma of humans contains a complex range of organic and inorganic ...

Synapse

... Synapses are specialized junctions through which cells of the nervous system signal to one another and to non-neuronal cells such as muscles or glands . Synapses form the circuits in which the neurons of the central nervous system interconnect. They are thus crucial to the biological ...