Muscle Tissue (Semester 2 - Biomedical Revision Notes)

There are four 4 classes of tissue:

Tissue = A collection of cells performing a similar function.

Muscle Tissue 

These consist of elongated cells that contract to generate forces and cause movement. Muscle tissue are the most abundant tissue in the body and they use most of the energy produced in the body. All muscle cells contain long protein polymers called Myosin and Actin which interact to cause muscle cells to contract and exert force. There are three types of muscle tissue.

1. Skeletal muscle: (Named this due to them being mostly connected to bones) are responsible for locomotion and other body movements such as facial expressions, shivering, and breathing.

2. Cardiac muscle: Makes up the heart and are responsible for beating of the heart and the pumping of blood. Individual cardiac muscle cells are branched and interweaving of these branches gives heart muscle structural strength. 

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  3.Smooth muscle: Responsible for involuntary generation of forces in many hollow internals organs such as the gut, bladder, and blood vessels.