body body system 1
How do we maintain Homeostasis
All the body systems work together to maintain
what is a heart
The heart is the muscle that pumps blood to the rest of the body. (Major Organ)
what is breathing
The physical process where you inhale and exhale air in and out of your lungs
what is a stimuli
a thing or event that evokes a specific functional reaction in an organ or tissue.
what is the digestive system for
breaks down food for nutrients
why do cells look different & preform different functions
differentiation
What is the purpose of the Excretory system
filters body and removes liquid wastes
what is the purpose of the immune system
Protects against foreign invaders and infections
what is blood
The blood is both a fluid and tissue that contains red blood, white blood cells, platelets, and plasma.
Carry oxygen poor blood towards the heart
what is the body's largest organ
The skin
what body system allows us to move
muscular system
what function does the endocrine system have
producing and secreting hormones
what is the function of arteries ?
carry oxygen rich blood away from heart(largest)
what is the function of capillaries?
allow exchange of materials between blood & cells(smallest)
why are all body systems important
they work tg to keep the body healthy and functioning
What is the function of the nerve system
to sense and respond to stimuli in & outside the body
how does the endocrine system & circulatory system work tg
the endocrine system produces hormones and circulatory transports around body to the target cells
what are hormones
chemical messengers that are produced in the body that regulate the activity of certain ceels
what is plasma
Plasma is the liquid part of blood that is made of water, salts, and proteins.
how do the respiratory system & circulatory system work tg
they work together to deliver oxygen to cells & get rid of the carbon dioxide the cells produce
what does blood do
The blood transports all the necessary for materials (including glucose and oxygen) to cells. These materials then diffuse from the blood, through the cell membrane and into the cell.
where does gas exchange happen
Gas exchange happens in the alveolus through the process of diffusion
what does O2 do once diffused in blood
O2 is carried throughout the body through the circulatory system
in a feedback loop, the product of a process will affect the rate of that process