How Do Cells Know What To Do 2 Flashcards
Intracellular
The space or fluid inside of a cell, that is, within the cell membrane
Extracellular
The space or fluid outside of a cell, that is, outside of the cell membrane
Cytoplasm
The area and contents of the cell located within the cell membrane, but outside of the nucleus
Organelle
A small specialised intracellular unit with a specific individual function
Nucleus
An organelle containing the cell’s DNA (or genetic material)
Columnar
Epithelial cells in a tall rectangular shape, often with an oval shape nucleus
Transitional
Epithelial cells found only in the urinary system, they allows for stretch depending on the volume of urine that is present
Photomicrograph
A photo taken through a microscope, in order to visualise very small cells or tissues at a high magnification
Microvilli
Small finger like extensions off an epithelial cell membrane. They act to increase surface area.
Adipose Tissue
Fatty tissue, containing adipocytes (or fat cells)
Endoplasmic Reticulum
A membranous organelle, it is called rough if ribosomes are present, or smooth if ribosomes are absent
Epithelial cell
A group of epithelial cells is referred to as an epithelium. Epithelium is one of the primary tissue types in the body, it is often found lining ducts and tubes, and also lining the entire outside of the body.
Squamous
Epithelial cells in a flattened oval shape, with a flattened nucleus
Cuboidal
Cells in a square shape, often with a round nucleus
Stratified
When epithelial cells are comprised of more than one layer they are referred to as stratified
