cAMP is the second messenger in the pathway.
cAMP or Cyclic AMP is a secondary messenger because it transmits signals from a receptor to a target cell. When the level increases rapidly, it starts following receptor-mediated activation of AC (adenylyl cyclase), and that catalyzes the conversion of AMP (adenosine monophosphate) to cAMP.
The cAMP pathway is also known as the adenylyl cyclase pathway, which is a G protein-coupled receptor that is used in the cell signaling process. It works by activating protein kinase A. Therefore, cAMP is considered a secondary messenger which also regulates various cellular functions like cell growth, cell differentiation, etc.
Learn more about cAMP here
brainly.com/question/6988226
#SPJ4
There are differences between Eukaryotic and Prokaryotic cells. This difference is considered to be the most important distinction between groups of organisms.
A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today.
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. <span>Both plant and animal cells are eukaryotic cells.
</span>
B right atrium it receives both from the superior vena cava venea cavae
Microscopic anatomy
The study that uses microscopes to see the minute details of organ parts is called microscopic anatomy.
Microscopic anatomy is the study of cells, tissues and organs of the body that are too small to been seen with the naked eye. Microscopic anatomy usually involves using special staining techniques, combined with electron or light microscope. The use of stains helps to improve colors so that the cells can be more easily identified when they are examined.
Answer:
The human heart has four chambers. The right and left ventricles are the lower two chambers, and the right and left atria are the top two chambers. These four chambers are all connected by valves that control the flow of blood between them. The chambers and valves of the heart and all of the human body’s arteries and veins make up the human cardiovascular system.
Explanation: The right ventricle functions to perform two jobs. It receives from the right atrium blood that has had its oxygen removed by the body. The ventricle then pumps that blood into the pulmonary artery so it can be moved to the lungs.
The pumping that occurs in the ventricles requires more force than the pumping of the atria. This is because the blood travels outside the heart when leaving the ventricles. The aorta, on the other hand, pumps blood to a neighboring chamber. The ventricle’s need to pump the blood farther requires that the walls of the ventricles be thicker than the aorta walls.The heart is made of chambers that both hold and move blood, so there is a system of valves that prevents blood from moving in the wrong direction. Between the right atrium and the right ventricle is the tricuspid valve. The pulmonary valve is between the right ventricle and the pulmonary artery. These two valves keep the flow of blood going in one direction.The system moves blood in two parts. Contraction of the right atrium moves blood into the right ventricle via the tricuspid valve. The pulmonary valve is then closed and the right ventricle fills with blood.After the blood from the right atrium has moved into the right ventricle, the tricuspid valve closes so the blood does not flow backward. The right ventricle contracts and causes the pulmonary valve to open. The blood then moves freely to the lungs without possible backflow because the pulmonary valve closes after the ventricle has contracted completely.In some people, the ventricles can become enlarged, or dilated. Right ventricle dilation is rarer than left ventricle dilation. In either case, the size increase is generally a response by the heart to heal damage by thinning and stretching the muscle. If the heart has been damaged by previous heart attacks, alcohol abuse, exposure to heavy metals, or other harm, then there is a risk of ventricular dilation.