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when you are afraid scared or excited adrenaline is released hence increasing heart beat rate. due to increase in heart beat rate your breathing rate increases as well. After sometime your impulse is send to your brain to stop the releasing of adrenaline and your heart beat rate decreases along with your breathing =) hope i answered your question
What else can I help you with?
How does running affect your heart rate?
Running effects the body by making the hear rate rise through rapid respiration. While running the lungs must breath in and respire air quickly causing the heart to pump more blood quickly through the body.
What is the primary function of the heart in animals?
The heart is a muscle that pumps blood and causes the blood to circulate throughout the body. It is the most hardworking muscle in the human body.
What does the heart do in the circulatory do?
No you don't have a heart inside your heart. The heart is made up of four chambers though. This is a short explanation about the heart. The heart is a very important muscle that you can't live without it. It pumps blood through your body. The heart is made up of 4 different parts that are called the chambers. The chambers are called Left atrium, Right atrium, Left ventricle and Right ventricle. The left atrium receives blood from the pulmonary-vein, and pumps it into the left-ventricle. The right atrium receives de-oxygenated blood from the superior and the inferior venae cavae and the coronary-sinus. The left ventricle receives oxygenated blood from the left-atrium via the mitral-valve, and pumps it into the aorta.
Are there valves in your heart?
Very poorly. Let's consider the left side of the heart which pumps blood into the aorta, the main artery leading from the heart. At the peak of a contraction (squeeze) of the heart it pumps blood into the aorta. The aorta is very elastic and expands as the squeeze of the heart pushes blood into it. Some of the blood, of course, continues on, and under normal circumstances, the aortic valve then closes, and as the heart fills with blood for the next squeeze, the elasticity of the aorta shrinks the aorta and pumps more blood into the body. If the valve is damaged (or, in your question, absent) then as the aorta's elasticity shrinks it, the blood would be forced back into the heart, not letting new blood come in to be pumped out on the next contraction. Thus the pumping would become very inefficient. It is exactly because of damage like this (aortic insufficiency) that the valve sometimes has to be replaced.
Why must the heart contract very strongly to pump blood from the left ventricle into the aorta?
The left ventricle pumps blood at a higher pressure because it sends blood all over the body where as the right ventricle pumps to the lungs,
What is a budgies heart rate?
very fast
Do gambusia need air pumps?
Gambusia are fish from fast flowing clean streams. Air pumps on their own do very little for them. Gambusia need filters.
Be afraid be very very afraid?
Actually its be afraid, be very afraid.
What is Feeling full with very fast and hard heart beat?
Palpitations
How do you defeat Chuck Norris?
You can't! The dinosaurs actually tried to. Once. Unscrew his ankles. Be afraid. Be VERY afraid. Run fast. Run far. He will STILL find you.
How does running affect your heart rate?
Running effects the body by making the hear rate rise through rapid respiration. While running the lungs must breath in and respire air quickly causing the heart to pump more blood quickly through the body.
What is the primary function of the heart in animals?
The heart is a muscle that pumps blood and causes the blood to circulate throughout the body. It is the most hardworking muscle in the human body.
What does the heart do in the circulatory do?
No you don't have a heart inside your heart. The heart is made up of four chambers though. This is a short explanation about the heart. The heart is a very important muscle that you can't live without it. It pumps blood through your body. The heart is made up of 4 different parts that are called the chambers. The chambers are called Left atrium, Right atrium, Left ventricle and Right ventricle. The left atrium receives blood from the pulmonary-vein, and pumps it into the left-ventricle. The right atrium receives de-oxygenated blood from the superior and the inferior venae cavae and the coronary-sinus. The left ventricle receives oxygenated blood from the left-atrium via the mitral-valve, and pumps it into the aorta.
How heart can be the hottest place on the human body?
Because Of Very Fast Blood Pumping
Are there valves in your heart?
Very poorly. Let's consider the left side of the heart which pumps blood into the aorta, the main artery leading from the heart. At the peak of a contraction (squeeze) of the heart it pumps blood into the aorta. The aorta is very elastic and expands as the squeeze of the heart pushes blood into it. Some of the blood, of course, continues on, and under normal circumstances, the aortic valve then closes, and as the heart fills with blood for the next squeeze, the elasticity of the aorta shrinks the aorta and pumps more blood into the body. If the valve is damaged (or, in your question, absent) then as the aorta's elasticity shrinks it, the blood would be forced back into the heart, not letting new blood come in to be pumped out on the next contraction. Thus the pumping would become very inefficient. It is exactly because of damage like this (aortic insufficiency) that the valve sometimes has to be replaced.
What are the three major part of your circulatory system?
Very simply put the venous system, the arterial system and your heart. The venous system bring blood from your organs and extremities to your heart, which pumps it and the arterial system takes it from your heart to your organs and extremities.
Why are humans so afraid that alligators are going to attack them?
Alligators have large mouths, are very fast, and are unpredictable. Humans fear the unknown.
