The capacity of the atrium increases when a wrinkled structure called the auricle is attached to the surface of an atrium. Because of this, there is an increase in the blood volume.
The expandable extension of the atrium is the atrial appendage, also known as the auricle. It helps to increase the overall capacity of the atrium to hold blood.
The protruding part of the atrium is called the auricle (or atrial appendage). It is a small, ear-shaped pouch that extends from each atrium, serving to increase the capacity of the atrium and help with blood flow. Each heart has a right and left auricle corresponding to the right and left atria.
The correct name for the heart auricle is the "auricula." Each auricula is a small, ear-shaped pouch attached to the atrium of the heart, with the right auricle associated with the right atrium and the left auricle with the left atrium. These structures help increase the capacity of the atria and play a role in regulating blood flow.
The flap-like wall of each atrium is called an auricle (or atrial appendage). These structures help increase the capacity of the atria and play a role in the heart's overall function by allowing for more blood to be accommodated. Each auricle is shaped like a small ear and is situated at the top of the respective atrium.
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There will be higher pressure in the left atrium, when there is mitral stenosis. There will dilatation of the left atrium as well as there will hypertrophy of the left atrium. There will raise in the pulmonary veins. This will lead to pulmonary edema. This will eventually lead to high pressure in pulmonary arteries. That is called as pulmonary hypertension. The pressure in right ventricle will increase. Then the pressure in the right atrium will increase. Then the pressure in the systemic venous side will increase. This will lead to right sided heart failure.
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The left auricular appendix (left auricula, left auricle, left atrial appendage) is a conical muscular pouch connected to the left atrium of the heart. It is somewhat constricted at its junction with the principal cavity; it is longer, narrower, and more curved than theright auricular appendix, and its margins are more deeply indented.
The plural is atria. This can be used architecturally or with reference to chambers of the heart.