Explain the function of heart
Answers
Answer:
It pumps blood throughout your body, controls your heart rate and maintains blood pressure. Your heart is a bit like a house. It has walls, rooms, doors, plumbing and an electrical system. All the parts of your heart work together to keep blood flowing and send nutrients to your other organs.
Answer:
Heart
Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works.
What is the heart?
The heart is a fist-sized organ that pumps blood throughout your body. It's the primary organ of your circulatory system.
Your heart contains four main sections (chambers) made of muscle and powered by electrical impulses. Your brain and nervous system direct your heart’s function.
FUNCTION
What is the heart’s function?
Your heart’s main function is to move blood throughout your body. Your heart also:
Controls the rhythm and speed of your heart rate.
Maintains your blood pressure.
How does your heart work with other organs?
Your heart works with other body systems to control your heart rate and other body functions. The primary systems are:
Nervous system: Your nervous system helps control your heart rate. It sends signals that tell your heart to beat slower during rest and faster during stress.
Endocrine system: Your endocrine system sends out hormones. These hormones tell your blood vessels to constrict or relax, which affects your blood pressure. Hormones from your thyroid gland can also tell your heart to beat faster or slower.
ANATOMY
Where is your heart located?
Your heart is located in the front of your chest. It sits slightly behind and to the left of your sternum (breastbone). Your ribcage protects your heart.
What side is your heart on?
Your heart is slightly on the left side of your body. It sits between your right and left lungs. The left lung is slightly smaller to make room for the heart in your left chest.
How big is your heart?
Everyone’s heart is a slightly different size. Generally, adult hearts are about the same size as two clenched fists, and children’s hearts are about the same size as one clenched fist.
How much does your heart weigh?
On average, an adult’s heart weighs about 10 ounces. Your heart may weigh a little more or a little less, depending on your body size and sex.
What are the parts of the heart’s anatomy?
The parts of your heart are like the parts of a house. Your heart has:
Walls.
Chambers (rooms).
Valves (doors).
Blood vessels (plumbing).
Electrical conduction system (electricity).
Heart walls
Your heart walls are the muscles that contract (squeeze) and relax to send blood throughout your body. A layer of muscular tissue called the septum divides your heart walls into the left and right sides.
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