Biology
- #50 The Gas Exchange System
All organisms take in gases from their environment and release gases to the environment. Animals take in O2 for aerobic respiration and release CO2. Plants also respire, but during daylight hours they photosynthesise at a greater rate than...
- #49.2 Gas Exchange And Smoking Syllabus 2016
9.1 The gas exchange system 9.2 Smoking The gas exchange system is responsible for the uptake of oxygen into the blood and excreting carbon dioxide. An understanding of this system shows how cells, tissues and organs function...
- Thelorrhagia
Term: thelorrhagia Literally meaning:"escape of blood through nipple"Origin: Anc Greek????/????(=nipple)+ + ????/rage(=breaking) >???????/regnymai(=to break) Coined/History(?)Definition Thelorrhagia is bleeding from the nipple...
- Epidermis
Term: epidermis Origin: Anc Greek ???/epi(=prefix meaning upon, on) +?????/derma(=skin) > ????/dero(=peel) Definition: 1. (anatomy) the outer layer of the skin 2. (botany) the outermost layer of cells covering the leaves and young...
- 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,...
Biology
epithelium
Term: epithelium
Origin: Anc Greek ???/epi(=on, upon)
+????/theli(=nipple) à literally means ?on nipple? because originally this word meant only the skin on the breast which is not which identical to the epidermis. In literal translation it is a misnomer.
Coined:
By Frederik Ruysch who used the term "epithelia" in his work "Thesaurus Anatomicus in 1703. The term "epithelium" was adopted later by Albrecht von Haller.
By Frederik Ruysch who used the term "epithelia" in his work "Thesaurus Anatomicus in 1703. The term "epithelium" was adopted later by Albrecht von Haller.
Definition:
1. (histology) Epithelium is one of the basic tissues that represents a layer of cells that line hollow organs and glands and the outer surface of the body and which is specialized for absorptive, secretory, protective, or sensory activities.
2. The lining of either a resin canal in gymnosperms or of a gum duct in dicotyledons.
- #50 The Gas Exchange System
All organisms take in gases from their environment and release gases to the environment. Animals take in O2 for aerobic respiration and release CO2. Plants also respire, but during daylight hours they photosynthesise at a greater rate than...
- #49.2 Gas Exchange And Smoking Syllabus 2016
9.1 The gas exchange system 9.2 Smoking The gas exchange system is responsible for the uptake of oxygen into the blood and excreting carbon dioxide. An understanding of this system shows how cells, tissues and organs function...
- Thelorrhagia
Term: thelorrhagia Literally meaning:"escape of blood through nipple"Origin: Anc Greek????/????(=nipple)+ + ????/rage(=breaking) >???????/regnymai(=to break) Coined/History(?)Definition Thelorrhagia is bleeding from the nipple...
- Epidermis
Term: epidermis Origin: Anc Greek ???/epi(=prefix meaning upon, on) +?????/derma(=skin) > ????/dero(=peel) Definition: 1. (anatomy) the outer layer of the skin 2. (botany) the outermost layer of cells covering the leaves and young...
- 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,...