💉 Body Systems
What is the smallest unit of the body?
Cell
What does “function” mean?
What something does
What organ takes in oxygen?
Lungs
What organ pumps blood?
the heart
What is cancer?
Uncontrolled cell growth
What system includes bones?
Skeletal system
What is anatomy?
Study of body structure
What gas do we remove when we breathe out?
Carbon dioxide
What do red blood cells carry?
Oxygen
What is a tumor?
Abnormal mass of cells
Put in order: cells, organs, tissues, systems
Cells → tissues → organs → systems
What is physiology?
Study of body function
What are alveoli?
Tiny air sacs in lungs where gas exchange happens
What are veins?
Blood vessels that carry blood back to the heart
What is the difference between benign and malignant?
Benign = does not spread, malignant = spreads
What is the function of the skeletal system? (give 2)
Support body, protect organs, help movement, make blood cells, store minerals (any 2)
What is a tissue?
Group of similar cells
What is the job of the trachea?
Carries air to lungs
What is hypertension?
High blood pressure
What is metastasis?
Spread of cancer to other parts of the body
What is the difference between an organ and a system?
Organ = one structure; system = group of organs working together
Use “organism” in a sentence
Every organism relies on a unique genetic.
Describe the full breathing process in 2–3 steps
Breathe in → oxygen enters lungs → gas exchange → carbon dioxide leaves body
Name 3 parts of blood and their functions
Red blood cells: carry oxygen
* White blood cells: fight infection
* Platelets: clot blood
Name 3 cancer treatments and explain them
Surgery: removes tumor
* Chemotherapy: treats whole body
* Radiation: targets area
* Immunotherapy: boosts immune system