Concept explainers
Identify the three types of muscle tissue and cite their major functions.
To determine:
The three types of muscle tissue and their functions.
Introduction:
Muscle tissues are mainly of three types, skeletal muscles, cardiac muscles and smooth muscles. Skeletal muscles are voluntary muscles and are attached to the skeleton system of the body. Cardiac muscles are involuntary muscles of the heart. Smooth muscles are also involuntary muscles and are found in intestinal walls.
Explanation of Solution
The three types of muscles are as follows:
Skeletal Muscle:
The cells of this tissue are cylindrical and long in shape and are multinucleated. They are mainly found in attached to the bones with the help of tendons.
The primary function of the skeletal muscle is in the movement and stabilization of the skeleton. These muscles help in insulation and also act as a protection for internal organs.
Cardiac Muscle:
The cells of this tissue are short and branched. They are made up of uninucleate cells which are connected by intercalated discs. They are found in the heart. The primary function of the cardiac muscle is the pumping and circulation of blood and maintenance of blood pressure.
Smooth Muscle:
The cells of smooth muscles are short and spindle shaped. They are uninucleate cells. They are found in the respiratory and digestive tract. These muscles are involved in the peristaltic movement, and the reproductive secretions. These are also involved in regulation of the diameter of blood vessels.
Muscle tissues are mainly of three types, skeletal muscles, cardiac muscles and smooth muscles.
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