Biology
- Renin-angiotensin-aldosterone Made Simple
The body has many systems that work together in order to maintain homeostasis. The renin-angiotensin-aldosterone pathway is no different. It has 3 functions: (1) to maintain a proper blood pressure/blood flow, (2) to maintain the right concentration of...
- Human Body Systems
Human Body Systems!Integumentary System: Your body is very prone to damage, and that's why we have this system! This is an organ system that helps protect the body. It has many functions such as to cushion, excrete wastes, regulate temperatures...
- #115 Control And Co-ordination In Mammals, The Nervous System
Humans, like all living organisms, can respond to changes in the environment and so increase survival. Humans have 2 control systems to do this: the nervous system and the endocrine (hormonal) system. The human nervous system controls...
- Organs Derived From Germ Layers Of Embryo
Ectoderm Mesoderm Endoderm Skin (epidermis) and their pigment cells, hairs, nails. Connective tissues, superficial and deep fascia, ligaments, tendons, dermis of skin (from dermatotome) Epithelial part of mouth, some part of palate, tongue,...
- Chemical Co-ordination
Click here for PDFEndocrine system includes endocrine glands and their secretions (hormones).Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts. HUMAN ENDOCRINE (DUCTLESS) GLANDS1....
Biology
endocrinology
Term: endocrinology
Origin: ????-/endo(=within)
+ ???????/ekrino(=secrete)
+ ????? /logos(=speech, study of)
+ ???????/ekrino(=secrete)
+ ????? /logos(=speech, study of)
Coined: in 1904 by Maurice-Adolphe Limon as a consequence of some prodromic observations and experiments:
* In the 1690s, Fredrik Ruysch (1638-1731) stated that the thyroid secreted important substances into the blood stream.
* Theophile Bordeu (1722-1776) wrote that "emanations" were given off by some body parts penetrating into the blood.
*In 1849 A. A. Berthold (1803-1861) castrated four of out cocks. Two of the castrated chickens were left to become chicken eunuchs but the other two castrated chickens had transplanted testes in a different site than the original. The two castrated chickens never matured into roosters with adult combs but the chickens who received transplanted testes did mature into normal adult roosters. This experiment demonstrated the influence of testis on the blood.
* In 1849 a British surgeon Thomas Addison (1793-1860), reported adrenal insufficiency in 1849, though endocrine functions had yet to be explained.
* In 1901 Takamine and independently, Aldrich isolated the incretion of the adrenal medulla and determined its chemical formula as adrenalin.
Definition:
The study of hormones and the cells of the endocrine glands.
- Renin-angiotensin-aldosterone Made Simple
The body has many systems that work together in order to maintain homeostasis. The renin-angiotensin-aldosterone pathway is no different. It has 3 functions: (1) to maintain a proper blood pressure/blood flow, (2) to maintain the right concentration of...
- Human Body Systems
Human Body Systems!Integumentary System: Your body is very prone to damage, and that's why we have this system! This is an organ system that helps protect the body. It has many functions such as to cushion, excrete wastes, regulate temperatures...
- #115 Control And Co-ordination In Mammals, The Nervous System
Humans, like all living organisms, can respond to changes in the environment and so increase survival. Humans have 2 control systems to do this: the nervous system and the endocrine (hormonal) system. The human nervous system controls...
- Organs Derived From Germ Layers Of Embryo
Ectoderm Mesoderm Endoderm Skin (epidermis) and their pigment cells, hairs, nails. Connective tissues, superficial and deep fascia, ligaments, tendons, dermis of skin (from dermatotome) Epithelial part of mouth, some part of palate, tongue,...
- Chemical Co-ordination
Click here for PDFEndocrine system includes endocrine glands and their secretions (hormones).Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts. HUMAN ENDOCRINE (DUCTLESS) GLANDS1....