Muscular System

The muscular system serves three major functions in the body, producing motion, providing stabilization, and generating heat. In the body there are three different kinds of muscle, cardiac, smooth, and skeletal. The cardiac muscle is found in the heart. Smooth muscle is primarily found in the digestive system and is used in involuntary motion like peristalsis. Skeletal muscle is found attached to the bones and is used to manipulate and move the body. Two major muscles are the diaphragm, which causes inhalation and exhaltion of the lungs, and the biceps femoris. The muscular system gets its food and oxygen from all the major blood vesicles some of which are the aorta, hepatic artery, and the abdominal aorta. It dumps the wastes that it collects into the all major veins, including the vena cavas and pulmonary vein. Its interstitial fluid is filtered in all major nodes including the illiac and inniguals.

The biceps femoris is one of the major muscles in the leg. It flexes and extends the thigh.

The diaphragm is essential to the movement of the respiratory system. The diaphragm causes the lungs to expand and contract, or breath in and out. It does this by altering the pressure of the thoracic cavity by contracting and relaxing. When the diaphragm contracts it decreases the space in the thoracic cavity, causing the pressure to go up, and causing the lungs to exhale. To inhale the diaphragm relaxes and expands the area of the thoracic cavity, lowering the pressure. when the pressure lowers the lungs expand again.

Skeletal System Lymphatic System Integumentary System Cardiovascular System

Muscular System Excretory System Nervous System Respiratory System

Reproductive System Endocrine System Digestive System Credits

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