Presentation on Muscle very easy and short.pptx

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1. Presentation on Muscle Physiology Learning Outcome Introduction of muscle. Function of muscle. Properties of muscle. Classification of muscle. Ahmad Hassan Dawar Prosthotist And Orthotist

2. Introduction Of Muscle:- Muscles are soft tissues . Many stretchy fibers make up your muscles. There are more than 600 muscles in human body. Different types of muscles have different jobs. Some muscles help you run, jump etc . Note:- Stapedius muscle is termed to be the smallest skeletal muscle in human body, which has a major role in Otology. The gluteus maximus is the largest muscle in the human body.

3. Function Of Muscle:- The 5 main functions of the muscular system are movement, support, protection, heat generation, and blood circulation. Movement :- Skeletal muscles pull on the bones causing movements at the joints. Support :- Muscles of the body wall support the internal organs. Protection :- Muscles in the torso (Trunk region) protect the internal organs at the front, sides, and back of the body.

4. Heat generation :- Maintaining normal body temperature is an important function of the muscular system. Blood circulation :- The heart is a muscle that pumps blood throughout the body.

5. Properties Of Muscle:- Muscles have four basic properties: Excitability:- Ability of muscle to respond to stimuli. Contractility:- Ability of muscle to contract or shorten its size. Extensibility:- Ability of muscle to stretch. Elasticity:- Ability of muscles to return to original length after stretching.

6. Properties Of Muscle:-

7. Classification Of Muscle:- Muscles are classified by three different methods, based on different factors: Depending upon the presence or absence of striations. Depend upon the control. Depending upon the situation.

8. Depending upon striations:- Depending upon the presences or absences of striations, the muscle are divided into two groups: Striated muscles. Non striated muscle s. Striated muscles:- Striated muscles are muscles in our bodies that have a striped appearance. This striped appearance is due to these muscles' light and dark bands which appear in an alternate fashion. Skeletal muscles are a type of striated muscles which are voluntary in nature. Examples of striated muscle are ; Skeletal muscle and cardiac muscles.

9. Skeletal Muscle

10. Non-striated muscle:- Non-striated muscles do not have any striations and are smooth . Found in the hollow of the internal organs , like the stomach, intestine, urinary bladder etc. Their activity is not under the control of the individual and are hence also known as involuntary muscles.

11. Depending upon control There are two types of muscle which are working on the basis of control ; Voluntary muscle. Involuntary muscle. Voluntary muscle:- Voluntary muscles are skeletal muscles that contract and relax under conscious control. These muscles attach to bones and regulate movement of the body . Example:- Skeletal Muscle Involuntary muscle:- Involuntary muscle is a muscle that contracts without conscious control. Examples:- I nclude the smooth and cardiac muscles.

12. Depending upon situation :- Depending upon situation, the muscles are classified into three types: Skeletal muscle. Cardiac muscle. Smooth muscle. Skeletal muscle:- also called voluntary muscle, in vertebrates, most common of the three types of muscle in the body. Skeletal muscles are attached to bones by tendons, and they produce all the movements of body parts in relation to each other.

13. Cardiac muscle:- Cardiac muscle tissue, or myocardium , is a specialized type of muscle tissue that forms the heart . This muscle tissue, which contracts and releases involuntarily , is responsible for keeping the heart pumping blood around the body. Muscle is fibrous tissue that contracts to produce movement. There are three types of muscle tissue in the body: skeletal, smooth, and cardiac. Cardiac muscle is highly organized and contains many types of cell, including fibroblasts, smooth muscle cells, and cardiomyocytes.

14. Smooth muscle :- Smooth muscle is a type of muscle that contracts without any voluntary control , and it is made of a thin form of layers, which is made up of spindle-shaped , unstriated cells with only one nucleus and present in inner organs walls like bladder, intestine, stomach, blood vessels, etc . excluding the heart.