TISSUES Flashcards
Week 3
What are the four structural levels?
- Cells
- Tissues
- Organs
- Systems
What are cells? Provide an example
Specialised to carry out different functions
e.g. muscle cells are able to shorten in length.
What are tissues? Provide an example
A group of cells that are similar in structure and function
e.g. a group of muscle cells is called muscle tissue.
What are organs? Provide an example
A structure made up of different types of tissue working together.
e.g. the stomach is an organ lined with epithelial tissue on the inside and muscular tissue in the wall.
What is a system? Provide an example
A group of organs that work together for a common function; is also called an organ system.
e.g. the respiratory system.
What are the four basic types of tissues?
- Epithelial
- Connective
- Muscular
- Nervous
What is epithelial tissue?
Tissue forms the outer part of the skin and lines hollow organs and ducts; a covering tissue; also called epithelial tissue.
e.g. heart, kidneys, intestines, liver and lungs.
What is connective tissue?
Tissue provides support for body organs and helps to hold all body parts together.
e.g. bone, cartilage, tendons, ligaments, and fat storage tissue (adipose).
What is nervous tissue?
Tissue is made up of nerve cells, which have long projections from the body of the cell. A stimulated neuron sends messaged along the projections from one part of the body to another.
e.g. brain, spinal cord, and nerves.
What is muscular tissue?
The cells of muscular tissue, often called muscle fibres. Tissue that is able to contract either voluntarily (skeletal) or involuntarily (smooth/cardiac).
What are the three types of muscular tissues?
- Smooth (Involuntary) - Found in the walls of the stomach, intestines, blood cells, iris, etc.
- Skeletal (Voluntary) - makes up muscles that are attached to bones.
- Cardiac (Involuntary) - makes up most of the heart.
