"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
Shivering is an involuntary muscular response from the body, triggered by cold. The "shivering" muscles are trying to internally generate heat, to help keep you warm.
It is the upper forelimb bone of any tetrapod.
Muscles should not be overworked because that can result in tearing of the muscles and muscle strain. It can also lead to other injuries like pulled muscles and sprains.
It's about Strength Potential. When your muscles contract and shorten to flex the wrist, they lose the potential to contract more, thus they lose the abililty to create a stronger grip past a certain level. As grip is mostly a function of the muscles that flex, thus the more flexed your are, the less strength potential you have.
The main organs found in the human body's muscular system are the cardiac muscles, smooth muscles, and skeletal muscles.
Pectinate muscles
pectinate muscles
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.
Atria of the Heart
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".
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.
There is no such thing as an "organ of muscles".
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 is the principal function of the bone
10 coordinated function of muscles and bones
Diaphragm and intercostal muscles.
Muscles move your bones, therefor making locomotion possible.