The left ventricle, it works the hardest and needs the most muscle mass.
muscle tone
the masticles or jaw muscles.
Cardiac muscle.
Resting, Icing, compressing, elevating the muscle
True. Resting muscle primarily produces ATP through oxidative phosphorylation, utilizing oxygen to create energy for cellular functions. This process occurs in the mitochondria of muscle cells and is a highly efficient way of generating ATP when the muscles are not actively contracting.
a cramp
The three types of muscle are skeletal, smooth and cardiac muscle. Cardiac muscle (which is involuntary) is arguably the hardest working because your heart needs to continuously beat in order to pump blood around the body.
The concentration of calcium ion is greater in the sarcoplasmic reticulum compared to the sarcoplasm of a resting muscle. This is because the sarcoplasmic reticulum stores and releases calcium ions during muscle contraction.
heart
Muscle relaxation occurs when the muscle fibers stop contracting and return to their resting state after being stimulated.
The hardest working muscle in your body is the heart. It works continuously to pump blood throughout your body, delivering oxygen and nutrients to all your organs and tissues. This helps maintain overall physical function by ensuring that your body receives the necessary resources to perform essential functions and activities.