Is cardiac muscle Uninucleated or multinucleated?

Cardiac muscles are also involuntary muscles but are found only in the heart. Cardiac muscles are branched and cylindrical in shape. They are uninucleate cells.

Is a cardiac muscle voluntary or involuntary?

Cardiac muscle cells are located in the walls of the heart, appear striated, and are under involuntary control.

Is cardiac muscle Striate?

CARDIAC MUSCLE IS SIMILAR TO OTHER MUSCLE TYPES. Cardiac muscle, like skeletal muscle, is a striated muscle and much of the mechanism of contraction of the two muscle types is similar.

Does cardiac muscle have one or multiple nuclei?

This is a high power view of cardiac muscle cells. Like smooth muscle, each cardiac muscle cell has a single (sometimes two) centrally located nucleus. Like skeletal muscle, cardiac muscle cells are striated due to a similar arrangement of contractile proteins.

Is cardiac muscle smooth?

The cardiac muscle cell has one central nucleus, like smooth muscle, but it also is striated, like skeletal muscle. The cardiac muscle cell is rectangular in shape. The contraction of cardiac muscle is involuntary, strong, and rhythmical.

What is cardiac muscle?

Cardiac muscle is an involuntary striated muscle tissue found only in the heart and is responsible for the ability of the heart to pump blood.

How is cardiac muscle similar to smooth muscle?

Cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle, and is found only in the heart. Cardiac and skeletal muscles are striated, in that they contain sarcomeres and are packed into highly regular, repeating arrangements of bundles; smooth muscle has neither attribute.

What is cardiac muscle function?

Structure and Function Rapid, involuntary contraction and relaxation of the cardiac muscle are vital for pumping blood throughout the cardiovascular system. To accomplish this, the structure of cardiac muscle has distinct features that allow it to contract in a coordinated fashion and resist fatigue.

What is the cardiac muscle function?

Why does cardiac muscle have multiple nuclei?

Under the light microscope, muscle cells appear striated with many nuclei squeezed along the membranes. The cells are multinucleated as a result of the fusion of the many myoblasts that fuse to form each long muscle fiber. Cardiac muscle forms the contractile walls of the heart.

What are the two types of cardiac muscle cells?

There are two major types of cardiac muscle cells: myocardial contractile cells and myocardial conducting cells. The myocardial contractile cells constitute the bulk (99 percent) of the cells in the atria and ventricles.

What is the histology of cardiac muscle?

Cardiac muscle is striated, like skeletal muscle, as the actin and myosin are arranged in sarcomeres, just as in skeletal muscle. However, cardiac muscle is involuntary. Cardiac muscle cells usually have a single (central) nucleus. The cells are often branched, and are tightly connected by specialised junctions.