Circulatory System Flashcards
What is the Circulatory system?
The circulatory system absorbs and transports nutrients and oxygen to cells and carries wastes to the organs responsible for eliminating them from the body.
What does the circulatory system do?
The circulatory system, also known as the cardiovascular system, is responsible for transporting blood, nutrients, gases, and waste products throughout the body.
(ORGAN) what does the heart do?
A muscular organ that pumps blood through the body.
What does Blood Vessels do?
Includes arteries, veins, and capillaries that carry blood to and from the heart.
What does blood do?
The fluid that carries oxygen, nutrients, hormones, and waste products.
How does the circulatory system work?
Oxygenation:
Oxygen-rich blood from the lungs enters the heart and is pumped to the body.
Nutrient Delivery:
Blood delivers oxygen and nutrients to tissues and organs.
Waste Removal:
After delivering oxygen, blood picks up carbon dioxide and waste and returns to the heart.
Re-oxygenation:
The heart sends the deoxygenated blood to the lungs to get more oxygen.
Summary of circulatory system?
The circulatory system continuously moves blood to provide oxygen and nutrients and remove waste, keeping the body healthy.
What is arteries:
Arteries are tubes that carry oxygen-filled blood away from the heart.
They have thick walls to handle the pressure from the blood.
Most arteries carry oxygen-rich blood, but the pulmonary arteries carry blood without oxygen to the lungs.
Arteries split into smaller tubes called arterioles, which lead to tiny blood vessels called capillaries, where oxygen and nutrients are passed to the body.
Their main job is to deliver oxygen and nutrients to keep the body healthy.
Blood flow color pattern?
right atrium receives blood from body (blue)
left atrium receives blood from lungs (red)
left ventricle pumps blood out to the rest of the body (red)
right ventricle pumps blood to lungs (blue)
whats the heart chambers?
Right Atrium: Receives deoxygenated blood from the body.
Right Ventricle: Pumps deoxygenated blood to the lungs.
Left Atrium: Receives oxygenated blood from the lungs.
Left Ventricle: Pumps oxygenated blood to the rest of the body.
What’s the four different types of valve (HEART)?
Tricuspid Valve: Between the right atrium and right ventricle.
Pulmonary Valve: Between the right ventricle and the pulmonary artery.
Mitral Valve: Between the left atrium and left ventricle.
Aortic Valve: Between the left ventricle and the aorta.
What’s the blood flow process?
Deoxygenated Blood: Blood from the body returns to the right atrium through the superior and inferior vena cavae.
Right Ventricle: Blood flows from the right atrium through the tricuspid valve into the right ventricle.
Lungs: The right ventricle pumps the blood through the pulmonary valve into the pulmonary arteries, sending it to the lungs to get oxygen.
Oxygenated Blood: After picking up oxygen, the blood returns to the left atrium via the pulmonary veins.
Left Ventricle: Blood flows from the left atrium through the mitral valve into the left ventricle.
Body: The left ventricle pumps the oxygen-rich blood through the aortic valve into the aorta, distributing it to the rest of the body.
What capillaries?
Capillaries are extremely small, thin-walled blood vessels that connect organs, tissues, and cells to the circulatory system.
Difference between arteries and veins?
Arteries carry blood from the heart to all body parts.
Veins carry blood from body parts back to the heart.
