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"embryological origin of the auricles, which are the true atria. Some sources cite that the musculi pectinati are useful in increasing the power of contraction without increasing heart mass substantially." - Wikipedia

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Ridges in anterior wall of right atrium are called?

Pectinate muscles


The internal wall surface of each ventricle displays large smooth irregular muscular ridges called?

pectinate muscles


What muscle is found in the right atrium?

The type of muscle that is found in the right atrium is mainly the pectinate muscles. This is one of the four chambers of the heart.


What chamber is pectinate mm found in?

Atria of the Heart


What is the Difference between the papillary muscle and the pectinate muscle?

The pectinate muscles are shaped a bit like brush bristles, and their function is to allow maxium contraction of the atria using the minimal muscle mass. Papillary muscles are connected to strong tendons in the ventricles called the chordae tendinae, which gives them a lot of strength. Their purpose is to prevent prolapse of the valves in the ventricles after the ventricles contract. Prolapse means that the valves fall inward, allowing backflow of blood back into the ventricles after they have contracted, which makes for a far less efficient action of the ventricles. Prolapsed valves and the blackflow of blood caused by the valves folding onto themselves is called a "heart murmur".


What are the Ridges in anterior wall of the right atrium called?

The ridges in the anterior wall of the right atrium are called pectinate muscles or pectinate ridges. These muscular ridges are important for increasing the surface area of the atrium to allow for more efficient contraction and blood flow.


Function of each organ of muscles?

There is no such thing as an "organ of muscles".


What are the muscles responsible for ensuring that organs function properly?

The muscles responsible for ensuring that organs function properly are called smooth muscles. These muscles are found in the walls of organs such as the stomach, intestines, and blood vessels, and help to regulate the movement and function of these organs.


What principal do Bones and muscles function?

what is the principal function of the bone


The coordinated functions of muscles and bones?

10 coordinated function of muscles and bones


What are the two skeletal muscles that contribute to lung function?

Diaphragm and intercostal muscles.


Function of muscles of the boby?

Muscles move your bones, therefor making locomotion possible.