Tissues

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• This muscle contains 100,000s of muscle cells also known as muscle fibres. The cells act all together to preform a function. Skeletal muscle contains two types of tissues called supporting tissue and contractile tissue.

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• Skeletal muscles are under voluntary control, which means you can control what they do. These muscles help with your posture continually, keeping your body upright. It helps keep your bones in place and helps you not to dislocate bones.

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• The Smooth muscle can most likely be found on the walls of many hallow organs, that need to be able to contract without being told to do so by the brain. Muscles in your bladder contract to expel urine from your body. The smooth muscle in your intestines helps you push food through your body.  

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• Smooth muscle is rugby ball shaped, they also go fatter when contracted. They are between 3-10 cm long. The smooth muscle is not under conscious control. They are founds in the walls of hallow organs.

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• The cardiac muscle is only found in the heart and is not under conscious control (It is myogenic). It makes up most of the heart's mass, the tissue size is around the size of your fist and has got great strength to expands. Cardiac muscle is made up of interlocking cardiac muscle cells. 

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• The function of the cardiac muscle is the movement of contraction, which moves the blood into the heart and the circulatory system which runs throughout the body. It is important because it keeps the blood flowing inside the heart so it is able to pump involuntary.  

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• The neurones structure is very complex and consists of different parts. Dendrites are treelike extensions at the beginning of the neuron which increase the neurones surface area. The soma is where they pass on signals from the dendrites. The axon acts like the manager.

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• The function of Neurones is to send signals from the brain to various muscles and organs. For example - the brain will tell the legs and arms to move a certain way.

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• This type of tissue varies in shapes and sizes, so none are the same. However they do have long processes which form the nerve. They are found in the brain and the spinal cord.

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• These cells have no actual function in relating information like neurons do but are they're to be beside the neurons to help support them by supporting where they are and making sure they don't get damaged by other neurons.

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• Blood is used to carry substances around the body and fight against disease. Blood contains plasma, a liquid that contains dissolved substances and cells. For example - Red blood cells in the plasma carry oxygen around the body. White blood cells in the plasma help protect us from diseases and Platelets help our blood to clot. Blood also carries waste products and nutrients around the body.  

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• The blood is 55% Plasma, 45% Red blood cells and (<1%) White blood cells and Platelets. Blood contains Red blood cells that live for 120 days and have no nucleus.  

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• The cartridge makes up structure and flexibility. It works best in two places it makes our noses bend, and our ear flappy so they are not stiff.

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• This connective tissue is made up of collagen fibres and elastic fibres which make a rubbery substance. The surface of most cartridge is surrounded by dense irregular tissue.

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• It protects us, gives us flexibility and enables movement. For example for us to be able to sit down on a chair we need to be able to bend our legs and straighten our backs, so this enables us to do so by flexing our legs. We also need to be able to be flexible to bend our arms to lift things on a daily basis.

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• This is a hard tissue made up of Calcium Salts deposited around protein fibres. The spongy bone in the middle contains blood vessels and bone marrow that contain stem cells. Which eventually develops into red and white blood cells.  

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• This is loose connective tissues, which consists of three things, Collagen fibres, Elastic fibres and Reticular fibres - they all form together to make a mesh structure.

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• This tissue binds skin and muscle beneath together. Their are many functions of this tissue, but some of them include - this tissue helps connect different tissues throughout a human body. Also this tissue allows us to pinch our skin and allows it to flex back into shape because of the elastic fibres in the substance.

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• This acts the same as insulation in a house, it acts as insulation to reduce the amount of heat loss we loose through our skin. Also it acts as extra padding for our kidneys, to help protect them.

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• The structure of this, is basically the same as Areolar connective tissue. Except is has more fat cells inside, and it protects, insulates and stores energy.

1. Structure

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   • The structure is that all the cuboidal cells are shaped like a cube, they are a layer of cells. Each cuboidal cell has the same width as the length this is why it looks like a cube.
2. Function

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   • The purpose of this is to allow substances through the body (e.g - allows h20 to come through our kidneys and the uretha). It produces and discharges thyroxie in thyroid gland.

1. Structure

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   • This consists of a single layer on cells resting on the basement membrane.. Each cell has a greater height rather than a greater width. Due to this cell shape the position of the nuclei and adjacent cells are particulary close and form a nearly single row. They often have goblet cells between them.
2. Function

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   • Goblet cells produce mucus, on top of the columnar epithelial tissue, and then they gather all the bacteria in the air. We gather this into mucus in our nose and blow it out onto a clean tissue.

1. Structure

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   • The structure of this tissue is thin and delicate, in it found in places where the protective covering needs to let substances through (e.g - diffusion). It is a single layer of flat cells.
2. Function

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   • This can be found in the alveoli of the lungs, the reason being because these cells are very thin and they pass gases through very easily. The alveoli role is to allow oxygen in and carbon dioxide out (eg - diffusion), thin walls in the squamous tissue allows the diffusion in the alveoli to take place.

1. Structure

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   • Ciliated is the same structure as Simple columnar cells. Is also has goblet cells
2. Function

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   • The function of the hair in this particular cell is to sweep away not needed particulars in the trachea. The cilia of the trachea stops and moves particles and stops them from getting lodged in the lungs.

1. Structure

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   • Simple is one layer of simple tissue and stratified tissue is multiple layers of epithelial tissue, the tissue is formed of lower cuboid cells. It is found on wet surfaces that have an considerable about of wear and tear.
2. Function

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   • This is found in the mouth cavity, to protect it.

1. Structure

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   • This is found on the outer dry surfaces of our body, for example - our hair and our nails. The outer surface contains dead epithelial cells. It contains something called Keratin - a highly insoluable protein that is waterproof.
2. Function

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   • The function of this is to divide and replace cells that eventually become dust.