Myringa or tympanic membrane
Answer:
എന്ത് ഉത്പാദിപ്പിക്കണം, എങ്ങനെ ഉത്പാദിപ്പിക്കണം, ആർക്കാണ് ഉത്പാദിപ്പിക്കേണ്ടത്. ഈ പ്രശ്നങ്ങളെല്ലാം പരിഹരിക്കാൻ ഒരു പിപിസി സഹായിക്കുന്നു.
Explanation:
Answer:
A. . Blood from the veins enters the ventricles.
C. Atria push blood into the ventricles
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
1. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
2.The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
3. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
4. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
