Parts of the digestive system...
mouth, esophagus, stomach, large intestine, small intestine and anus.
Parts of the excretory system...
kidneys, urethra, ureters and bladder.
The circulatory system...
takes blood to all parts of the body. It's made up of the heart and blood vessels.
The heart...
is a hollow muscle that pumps blood around the body. Each time it pumps is called a heartbeat.
Veins...
are blood vessels that return blood to the heart from the rest of the body.
Arteries
are blood vessels that carry blood from the heart to the rest of our body.
Capillaries
are tiny blood vessels that connect the arteries to veins. Here oxygen and nutrients are exchanged for carbon dioxide and other waste products.
The respiratory system...
takes in oxygen and expels carbon dioxide. It's made up of the nostrils in the nose, the trachea, the two bronchi and the two lungs.
The nose has two.......These have lots of little hairs and are narrow at the back. This is to stop foreign objects (dust), when a foreign object enters our nose, we blow or sneeze it out.
Nostrils
The........are like big sacks.They fill up almost all your chest, they are squidgy , like sponges.
lungs
Lungs are made up of lots of little bags called....surrounded by blood capillaries.
alveoli
The...........divides into two tubes that go into the lungs.
trachea/windpipe
The tubes into which the trachea divides are called........
bronchi
The reproductive system...
allows human to make more living things of the same type. A tiny egg becomes fertilised and over nine months grows into a new human being.
Follow the sequence: egg-sperm...
uterus-embryo-umbilical cord-fetus-three months (organs)-nine months (boy or girl)- baby (it's born).
The female reproductive organs are...
ovaries, uterus, fallopian tubes and vagina.
