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Today topics are:
=>Types of muscles with Explaination.
In previous Lecture we learn that there are three types of Muscles.So here we explain these types.
1>SKELETAL MUSCLES:A Skeletal Muscles has two or more attachments.The attachment that moves the least is referred as the origin.
And the one that moves the most is the Insertion.
The fleshy part of the muscles is referred as Belly.
The end of a muscles are attached to bones,cartilage, ligaments by cords of fibrous tissue called tendons.
You can see it in this image.
2>SMOOTH MUSCLES : It is consist of long,spindle-shaped cells closely arranged in bundles or sheets.In the tubes of the body,it provides the motive power for propelling the contents through the lumen.
In storage organ such as urinary bladder and the uterus,the fibers are arranged and interlaced with one another
Depending the organ,smooth muscle fibers may be made to contract by local stretching of the fibers by nerve impulses from autonomic nerves or by hormonal stimulation.
you can see it in this image.
3==>CARDIAC MUSCLE : Cardiac Muscles consist of striated muscles fibers that branch and unite with each other.It form the myocardium of the heart.It fibers tend to be arranged in whorls and spiral and they have the property of spontaneous and rhythmic contraction specialized Cardiac Muscles fibers form the conducting system of the heart.
You can see it in this image.
The topic of Next Lecture#4 is
=>Joint
Thanks for reading.Hope you like my Lectures.If you have any suggestions to improve my Lectures then must suggest it in the comments.
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