Tissues
- Created by: victoria123!!!
- Created on: 04-04-16 15:06
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- Tissues
- Epithelial tissue
- Epithelial tissue form a continuous layer, covering the external surfaces of the body and lining the internal surfaces
- Cuboidal Tissue
- Simplest form of epithelial tissue
- Have a cuboid shape
- The tissue is one cell thick
- Found in the kidney nephron and duct of the salivary glands
- Has no blood vessels but may have nerve endings
- Situated above the basement membrane
- Columnar epithelium tissue
- Elongated cells
- Tubes which substances move through have cillia
- Squamous
- Flattened cells on the basement membrane
- Form wall of the alveoli
- Line the wall of the Bowman's capsue
- Muscle tissue
- Skeletal muscle
- Attached to bones
- Generates movemen
- Voluntary muscle
- Has visible stripes under microsope
- Powerful contraction
- Smooth muscle
- Formed of spindle shaped cells
- Contracts rhythmically
- Contractions are less powerful than skeletal muscle
- Occurs in walls of blood vessels, digestive and respiratory tract
- Cardiac muscle
- Found only in the heart
- Has visible stripes ubder a microscope
- Has no long fibres
- Does not tire
- Contracts rhythmically
- Skeletal muscle
- Connective tissue
- Connects, supports and seperates tissues and organs
- Contains collagen fibres
- Between fibers are fat storing cells and cells of the immune system
- Organs
- A group of tissues in a structural unit working together and performing a specific role
- Organ systems
- A group of organs working together for a particular role e.g the digestive system
- Multicellular organisms have specialised cells forming tissues and organs
- Stem cells have the potential to become any type of cell in the body
- Differentiation is the development of a cell into a specific type of cell
- As a cell differentiates the cell becomes specialised in structure and in the chemical reactions it does
- Epithelial tissue
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