MUSCLE PHYSIOLOGY

PHYSIOLOGY

CARDIAC MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is a cardiac Muscle different from other cells?
A
photosynthesis
B
Cardiac muscle tissue works to keep your heart pumping through involuntary movements.
C
keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control.
D
keeps your heart pumping
Explanation: 

Detailed explanation-1: -Cardiac muscle, like skeletal muscle, is made up of sarcomeres that allow for contractility. However, unlike skeletal muscle, cardiac muscle is under involuntary control. The cardiac muscle is responsible for the contractility of the heart and, therefore, the pumping action.

Detailed explanation-2: -Cardiac Muscles are found in the Heart and are involuntary muscles. Skeletal Muscles are attached to the bones and are voluntary in nature. Cardiac Muscles are only found in the heart wall of vertebrates. Skeletal Muscles can be found all over the body, attached with the help of Tendons.

Detailed explanation-3: -Intercalated discs connect cardiac muscle cells. Gap junctions inside the intercalated discs relay electrical impulses from one cardiac muscle cell to another. Desmosomes are other structures present within intercalated discs. These help hold cardiac muscle fibers together.

Detailed explanation-4: -A heart cell is a type of muscle cell which needs plenty of energy to contract and keep functioning. This is why a heart cell needs more mitochondria than other cells-because they need more energy.

Detailed explanation-5: -Cardiac muscles are a type of specialized, striated muscle found only in the heart. They are under the control of the autonomic nervous system, which means they are involuntary and work autonomously. They also contain blood vessels that supply nutrients to cardiac muscle tissue and remove waste products.

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