Answer: The heart beats about 100,000 times a day, on average.Generally, the heart beats around 70 times per minutes, or just over 4,000 times per hour. (70 x 60 = 4,200) In a full day, that is about 100,000 beats. This number can change, however, depending on blood pressure, heart conditions, exercise, and many other factors. In average, 100,000 times each day.
Answer: The human heart is only about 5 inches in length. It weighs about 200 to 400 grams, depending on the age, weight and build of the person. Typically, an adult heart is about 300 grams. If you want to find out what size your heart is, clench your fist. The sized of the heart is roughly equal to the size of your curled fist.
Answer: The average heart beats 80-100 beats per minute at rest. Therefore in a year it would be 42,048,000 - 52,560,000 just at rest. That amount would be increased depending on the amount of exercise that person does.
Answer: Both the brain and the heart are important to the function of thehuman body. If the brain is dead but the heart is still beating,the person is alive. However, if the heart stops, it means theperson is dead. Therefore, the heart is more important.
Answer: yes but very little. cavities are location where bacteria and other pathogens can reside. this causes the accumulation of polygons substances that give off a bad Oder. usually the cause of bad breath in people with cavities is that cavities are mostly found in people with bad dental hygiene- which is to itself a cause for bad breath.
Answer: There are are three types of muscles in the human body. The skeletal muscle which can be controlled voluntarily, the smooth muscles in the blood vessel walls and alimentary tract that cannot be controlled voluntarily but is controlled by the autonomic nervous system and the cardiac muscle that cannot be controlled voluntarily but is capable of generating electrical impulses on its own.
The repeated electrical impulses that makes the heart beat starts its journey at the Sino-Atrial Node, composed of nodal tissue which is altered cardiac muscle tissue capable of spontaneously generating electrical impulses, situated in the right atrial wall. (The heart has four chambers, a pair of atria and a pair of ventricles.) The electrical impulse generated gets conducted across the atrial wall to reach the Atrio-ventricular node in the inter-ventricular septum that separates the two sides of the heart. From the AV node conduction of the electrical impulse occurs across a system of the main bundle which branches off into left and right bundle branches and further branches carry the impulse across the whole ventricle. At a given time the atria and ventricles are in different phases of contraction and relaxation. It is the patterned flow of this electrical electrical impulse that makes the cardiac muscle contract in such a sequence that at the time that the atria contracts the ventricles are relaxed to receive blood from the atria and when the ventricle gets filled, it starts to contract and the valve between the atria and ventricle closes to prevent return and the blood gets pumped to the pulmonary circulation from the right ventricle and to the systemic general circulation from the left ventricle, while at this time, the atria is in a relaxed stage and receiving venous blood (The left and right side of the heart are normally sealed from one another).
This process of the cardiac cycle gets repeated 72 times per minute.