Blood
What are white blood cells
The body's defense team fights off germs and infections by identifying and destroying them
How many main chambers does the heart have
What is 4
What is the primary function of arteries
what is carrying oxygenated blood away from the heart to different tissues and organs in the body
What would happen without blood pressure
what is blood would not be able to reach all parts of the body
what role do red blood cells play in oxygen transport
what is by carrying oxygen to the rest of the body using hemoglobin
What are the four main components of blood
what is red blood cells, white blood cells, platelets, and plasma.
What are the names of the upper chambers of the heart
what is the left and right atria
How do veins differ from arteries in terms of their functions
what is veins carry deoxygenated blood to the heart, while arteries carry oxygenated blood away from the heart
What is the normal range for resting heart rate
what is 60-100 beats per minute
What's the main mechanism that transports nutrients and oxygen to the body
what is diffusion
Describe the relationship between red blood cells and oxygen
what is red blood cells are like the vehicle for delivering oxygen to the cells
What is the function of the right ventricle in the heart
what is taking in venous blood and delivering it to the lungs and gets oxygenated
Why is it important to maintain a steady flow of venous and arterial blood flow
what is ensures a consistent blood supply to all tissues and/or organs throughout the body
How does physical activity affect your heart rate
what is it increases your heart rate
How does the structure of capillaries facilitate the exchange of nutrients and oxygen between blood and tissues
what is capillaries have very thin walls, allowing for easy diffusion
How do blood cells appear red and what role does hemoglobin play in their function
what is red blood cells appear red because they contain hemoglobin, which has iron and gives the cells their red color.
Explain the difference between the function of the atria and ventricles in the heart
what is atria serve as receiving chambers and the ventricles classify as pumping chambers.
Describe how the size of arteries and veins vary throughout the body
what is arteries have larger sizes near the heart and become smaller as they move away, while veins get larger as they near the heart
In what 3 ways can lifestyle factors like smoking or alcohol consumption influence heart rate and blood pressure levels
what is it stimulates the nervous system, damages blood vessels, and reduces your oxygen supply to the heart
How does the process of diffusion give to the movement of oxygen and nutrients from the bloodstream to cells
what is it allows molecules to passively move from an area of high concentration to an area of low concentration
Why is it important for blood to have both red and white blood cells
What is red blood cells transport oxygen through the body, while white blood cells are important for fighting infections and defending,
What role does the heart play in the circulatory system
what is the central pump
What is the purpose of a capillary
what is capillaries connect the smaller veins and delivers oxygen and nutrients to the cells that need it
How does heart rate relate to blood pressure
what is they both indicate how well your heart is working
What 3 factors can affect the order of nutrient and oxygen delivery in the body
what is cardiac output, hemoglobin saturation, and hemoglobin concentration