The primary function of smooth muscle cells is to help hollow organs contract. These organs include the bladder and uterus as well as organs in the gastrointestinal tract. Smooth muscle cells also help the eyes maintain normal focus.
Smooth muscle cells are responsible for helping food pass through the digestive system and for pushing food up into the esophagus when vomiting occurs. In the urinary system, smooth muscle cells contract to push urine into the urethra and out of the body. When a woman gives birth, the smooth muscle cells found in the uterus contract to push the baby out of the birth canal. Smooth muscle cells also affect the diameter of the blood vessels. When the smooth muscle inside a blood vessel contracts, the diameter of the blood vessel decreases. If the smooth muscle expands, the diameter of the blood vessel increases.Learn More
A group of muscle cells, or myocytes, is known as a muscle fascicle. Muscle fascicles are connected by a connective tissue sheath, known as the perimysium.Full Answer >
Discrete bundles of muscles cells are known as muscle fascicles. They are bundled together and connected by a connective tissue sheath known as the perimysium.Full Answer >
Muscle cells produce ATP anaerobically during periods of rapid exercise. ATP is the energy needed for cellular activity to occur. Generally oxygen is used to produce ATP in a process called aerobic respiration. When oxygen is not available to break down the carbohydrates that enable muscle contraction, the body continues to create ATP through anaerobic respiration. Anaerobic respiration results in less ATP production and in the waste product lactic acid.Full Answer >
The four functions of the muscular system are movement, maintenance of posture, joint stabilization, and heat generation, states Inner Body. The primary function of the muscles is to provide contraction in order to move the body as a whole or move materials through the body.Full Answer >