Write one characteristic of each voluntary, involuntary and cardiac muscles.
Answers
Explanation:
Four characteristics define cardiac muscle tissue cells: they are involuntary and intrinsically controlled, striated, branched, and single nucleated. Cardiac muscle is considered to be an involuntary tissue because it is controlled unconsciously by regions of the brain stem and hypothalamus.
Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus. Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically.
Four characteristics define skeletal muscle tissue cells: they are voluntary, striated, not branched, and multinucleated. Skeletal muscle tissue is the only muscle tissue under the direct conscious control of the cerebral cortex of the brain, giving it the designation of being voluntary muscle.
Answer:
voluntary muscles
These muscle fibres are long or elongated non tapering and cylindrical, unbranched.
Each voluntary muscle is multinucleated.
Each voluntary muscle is enclosed in a thin but distinct plasma membrane called sarcolemma.
Nuclei are located just beneath the sarcolemma.
Involuntary muscles do not fatigue and can work continuously. These muscles are important as they are involved in the movement of the body parts and locomotion of the body. Involuntary muscles are involved in the movements of the internal organs and also aid in the passage of fluids and food in the digestive system.
Cardiac muscle tissue is a specialized, organized type of tissue that only exists in the heart. It is responsible for keeping the heart pumping and blood circulating around the body. Cardiac muscle tissue, or myocardium, contains cells that expand and contract in response to electrical impulses from the nervous system.