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Types of Muscle

There are three types of muscle: skeletal, cardiac and smooth muscleSkeletal muscles are responsible for movement e.g. biceps. Cardiac muscle is found only in the heart. Smooth muscle (involuntary muscle) is found in organs such as stomach, bladder and the walls of blood vessels and the digestive system.

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Specification: AQA Biology (7402), A-level, 3.6.3 Skeletal muscles are stimulated to contract by nerves and act as. Topic: Muscles.

Key terms in this lesson

pyruvate
The three-carbon end product of glycolysis, which enters the mitochondrion for the link reaction in the presence of oxygen or is reduced to lactate or ethanol in its absence.
ATP
Adenosine triphosphate, the universal energy currency of cells, formed by adding an inorganic phosphate to ADP and hydrolysed to release energy for cellular reactions.
chemiosmosis
The synthesis of ATP by ATP synthase, driven by the flow of protons down their concentration gradient across a membrane.

More in Muscles

All 15 lessons in Muscles · All AQA A-level Biology topics