Essay about Unit 5 P2 Complete

Anatomy and Physiology

Unit 5 P2
Anatomy and Physiology

Introduction: I will outline and explain the four tissues:
Epithelia tissue:
Epithelia tissue is the lining of internal and external surfaces and body for example tubes, capillaries and ducts. The lining may be made of a single layer of epithelia or layers of epithelia which is called compound epithelia. There are nerves supplies to the epithelia for example pain when someone pinches you. The cells are supplied with oxygen and nutrients in order for someone to live.
The oxygen and the nutrients supply is provided by the deeper tissue underneath the epithelia. Also epithelia cells are exposed to friction; a layer comes off every time you move around. They also have a greater capacity for growth and repairs for any other cell, this occurs during sleep.
Simple epithelia – this is the top layer of the skin surface, it could be in many different shapes. Cuboidal cell is found in the kidney, sweat ducts, thyroid gland and breast tissue. The cuboidal cell is found on the layer of the kidney to protect the kidney. This is an example,

The squamous cell is found in lungs, blood capillaries and alveoli. This cell has to be flat in order for the osmosis to take place. This is how they look like:

Columnar cells- this is found in the cilia and goblet cell. Both secrete mucous for example chest infection. This is an example of the columnar cell.

Compound Epithelia – this is to protect deep structures, they are found in the mouth, the tongue, and the oesophagus. They are found deep and are usually pink in colour. This is found in the vaginal area to help during birth. The more pigment cells you have the darker your colour.

Connective Tissue
The connective tissue is split into five, the first example is:
Blood
Blood consists of plasma (matrix) in which substances are carried. O2, RBC, CO2, glucose, lipids and hormones, Amino acids platelets. They have lots of blood cells which made most of the colour. Blood is the consistency that is in order to reach every part of the body. (Blood is straw coloured.)If blood was too thick, then their wold is more risks of forming clots. But if it was too thin then there would be more of losing lots of blood.
Red blood cells don’t have a nucleus; they die quickly as their life span is for 120 days. They are in the smallest capillaries. The people with sickle cell have a different shape of red blood cells; they have bigger capillaries and are more likely to get blocked in the blood flow.
In the summer vasodilation occurs in the winter, which tightens the veins, which is harder for someone with sickle cell. Also the hormones flow around the blood looking for reception sites.

Adipose
This is a fatty tissue, its common under the skin, around organs for example the heart, digestive track, and the kidneys. It insulates the human body against cold.

Areolar

Cartilage
This is a smooth, firm substance that protects the bone during friction. The ends of every bone have a protected layer of cartilage. The cartilage regenerates itself. Its located in the ear, the nose and inside the knee. It does not contain any blood vessels meaning it doesn’t have blood supply. It gets its nutrients from the bone beneath it.

Bone-
This is a much stronger bone, which has a smooth substance. It’s harder and stronger than cartilage. It also can be worn away from friction. It has a rigid matrix which is made of calcium salts which forms around collagen fibre and give bone its hardness. Collagen fibre offers some degree of ability to bend under strain and prevent bone from being too brittle.
If anyone suffers osteoporosis or deficiency of calcium then your bone is much weaker than others. Every bone has a blood supply, the blood vessels run through the

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