systems of the body
the lungs are apart of this system.
respiratory system
true or false: smoking cigarettes is bad for your respiratory system
true
what are cells?
A cell is a single, tiny building block that makes up living things.
how many process does the digestive system perform?
3
the excretory transports _______ around your body and removes ______.
nutrients; waste
the function of the _______ system is to digest and absorb food.
digestive
what are the 3 steps of respiration
1. inhalation
2. gas exchange
3. exhalation
cells make up ______
tissues
what are the three processes that the digestive system performs?
1. it digests food
2. it absorbs nutrients
3. it expels waste
blood flows around what two circuits?
the pulmonary circuit and the systemic circuit.
your heart is apart of this system.
the circulatory system
what happens during inhalation?
the diaphragm contracts. the lungs expand and fill with air that contain lots of oxygen.
tissues make up ______
organs
what is absorption?
absorption is when the nutrients travel into the blood
________ _______ connects the heart and the other organs in your body
systemic circulation
your stomach, esophagus, and mouth are all apart of the ________ system.
digestive
what is gas exchange?
oxygen travels from the alveoli into the blood. carbon dioxide travels from the blood into the alveoli.
what are the three processes of nutrition?
1. getting nutrients and oxygen
2. transporting nutrients and oxygen
3. expelling waste
name two organs that are apart of the digestive system
mouth
stomach
large intestine
small intestine
liver
esophagus
pancreas
gallbladder
pulmonary circulation connects the ______ and _____.
heart; lungs
the _________ system controls your thoughts and feelings, intelligence, learning, memory, and more.
name 3 healthy habits for your respiration system
breathe through your nose
do regular exercise
avoid cigarette smoke
cover your mouth when you sneeze
wear a scarf in the winter
wear a face mask to protect yourself from dust or smoke
how many organ systems are there in the human body?
11
name 3 healthy habits for the digestive system
follow a balanced diet
eat four or five meals daily
dont eat more than you need
eat slowly
eat plant-based foods
brush your teeth
wash raw foods and wash your hands
name 3 healthy habits for the circulatory system
do physical exercise
drink water
avoid alcohol and tobacco
avoid stressful situations
follow a varied and balanced diet
maintain a healthy weight
get enough sleep