Types Of Muscles , Functions, And Common Conditions

Muscles

Question 1: What is the muscle?
Answer.

Muscle: The muscle is a contractile tissue (the muscle cells contain contractile proteins in their cytoplasm) that brings about the movements of the body. During contraction, the muscles shorten and convert the chemical energy into mechanical energy.

Question 2: What are the different types of muscles?
Answer. There are three types of muscles:

• Skeletal muscle
• Cardiac muscle
• Smooth muscle

Question 3: What are adventitious bursae?
Answer. Adventitious Bursae:

The adventitious bursae develop in the subcutaneous tissue over bony prominences where the skin is subjected to pressure and friction. Examples:

• Tailor’s ankle: A bursa develops over lateral malleolus in tailors who sit in cross-legged position while at work, thus bringing lateral malleolus in contact with the table leading to pressure and friction.
• Weaver’s bottom: A bursa develops between gluteus maximus and gluteal tuberosity in weavers who sit for prolonged periods for weaving the cloth.
• Porter’s shoulder: A bursa develops over clavicle in porters who hang heavy luggage on their shoulders.