Body Tissues - In the human body we have four main tissues, these being Epithelial, Muscle, Connective and Nervous. Tissues are groups of similar cells carrying out specific functions.

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Eleanor Lees

Unit 5 : Anatomy and Physiology

Task 1 - P2

Body Tissues

In the human body we have four main tissues, these being Epithelial, Muscle, Connective and Nervous. Tissues are groups of similar cells carrying out specific functions.

Firstly, Epthelial tissues are the internal linings ad external surfaces and body cavaties, including tubes or channels (ducts) that carry secretions from glands. There are two types of epithelial tissue, simple and compound. Simple including,

  1. Cubical/cuboidal - these are cube shaped with a spherical nuclei, they are often found in the kidney tubes, sweat ducts and glands like the thyroid gland and breast tissue.

Columnar - these cells are much taller with a slighlty oval nuclei, often associated with microscopic filaments called cilia which is often found in the throat.

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Squamous - the word squamous means scaly to signify the 'flatness'.These cells are extremely flat with an oval nucleus forming alump in the centre. Theyre also positioned close together in random patterns, simple squamous epithelium is found on the walls of the lung aveoli and the  blood capileries.

Compound being,

  1. To protect deeper structures, this can be found in the vagina, mouth, tongue and the oesophagus this is lined by stratified epithelia (simple) which then consist of layers being squamous, cuboidal or columnar cells which eventually become flattened due to pressure from below as the rech the surface.

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A brief piece of work that effectively describes the 4 main tissues in the human body. The writer appears to have excellent knowledge of anatomy and physiology. All I would say is read through the work carefully to make the ideas are conveyed clearly. There is one part where I was not sure about where compound tissue was discussed. Make sure the formatting of the work is done in a uniform manner throughout and check for grammatical errors. The writing style was good overall. 4/5