Tissues

1. function

   Nota:

   • Cells form into sheets and form in the protective area to allow substances through, e.g. capilliary walls allow O2, Co2 and glucose.
2. structure

   Nota:

   • The structure of the cells is small, thin and delicate

1. function

   Nota:

   • Allows substances to pass through by diffusion. Can withstand more trauma than simple squamous epithelium. Also specialise in secreting subtances such as medcines
2. structure

   Nota:

   • This tissue consists of single layers of cuboidal cells on the bottom of the membrane

1. function

   Nota:

   • Columnar epithelia have goblet cells in between them which allows them to produce mucous. The mucous traps dust and germs
2. structure

   Nota:

   • Microvilli, also known as the hairs which are on the top of the columnar epithelial cells.

1. function

   Nota:

   • A thin tissue that has hair-like structures on it. The hairs move back and forth to help move particules out of our body
2. structure

   Nota:

   • We find ciliated columnar tissue in our respiratory tract

1. function

   Nota:

   • They are the layers under the cuboidal and divide to replace the surface cells which then become dust.
2. structure

   Nota:

   • Keratinised are the dead cells which lay on the top as they are dead, they are filled with protein called keratin

1. function

   Nota:

   • This tissue is found in the lining moist cavities or tubes within the body such as the mouth or cornea
2. structure

   Nota:

   • The cells on the surface and sloughed of through friction and are replaced by new cells.

Nota:

• Muscle tissue consist of muscle  fibres that are important and capable of contraction along their longitudinal axis.

Nota:

• The function of the skeletal movement is to produce movement, maintain posture and body position, support soft tissue and maintain body temperature

Nota:

• smooth muscle cells are shaped as rugby balls shape and are more fatty when contracted.

Nota:

• Smooth muscle is not under conscious control, it is controlled by out nervous system. Smooth muscle is found in the bladder wall and stomach wall.

Nota:

• Cardiac muscle is only found in the heart and is not under conscious control.

Nota:

• The cardiac muscle can contract without any nervous stimulation which Is known as myogenic.

1. function

   Nota:

   • Cartilage allows parts of our body to be more flexible, such as our nose and ears.
2. structure

   Nota:

   • The cartilage allows structure and flexibility.

Nota:

• Our bones store different kinds of nutrients, minerals and lipids and produces blood cells. Bones also supports our framework.

Nota:

• The bones are hard living tissue made up of calcium salts. In the middle of the bone includes a spongy type which contains blood vessiles and bone marrow which contain stem cells

Nota:

• Carries around different materials such as O2, CO2, nutrients and waste

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• Small red overall shaped, does not have a nucleus but can live for 120 days.

Nota:

• a sticky white material which combines muscles groups, blood vessel and nerves system together.

Nota:

• Insulates and stores the energy which is made. It contain collagen and elastin fibres which makes it strechy