Science: The Respiratory and Circulatory Systems
Terms
undefined, object
copy deck
-
Science: The Respiratory and Circulatory Systems
Chapter 4, Lesson 2
pg. A96 - .
- lungs
- The main organs of the respiratory system.
- heart
- The muscle that pumps blood through your blood vessels to all parts of your body.
- capillaries
- Tiny blood vessels that allow gases and nutrients to pass from blood to cells.
- arteries
- Blood vessels that take blood away from the heart.
- veins
- Large blood vessels that return blood to the heart.
- Which blood vessels take blood away from the heart?
- Arteries are blood vessels that carry blood away from the heart.
- Which blood vessels in the lungs help your body take in and give off gases?
- Capillaries in the lungs help your body take in and give off gases.
- As muscles do more work they need more ________.
- Oxygen
- Air enters the body through the ______ and ______.
- nose and mouth
- The ________ are the main organs of the respiratory system.
- lungs
- Air travels through the _______ down to the lungs.
- trachea
- In the lungs, oxygen passes through the _________ into capillaries to the circulatory system.
- alveoli
- __________ travels from the circulatory system through the lungs and out into the air.
- Carbon dioxide
- _________ traps germs, dust, and dirt.
- mucus
- Small ______ sweep mucus up and out of your trachea.
- hairs
- When you exercise, your body needs more _____, so you breathe faster.
- oxygen
- When blood passes through ________, it exchanges oxygen and carbon dioxide.
- capillaries
- From your heart, blood first flows away through _______ to the body, then through _______, and back to the heart through _______.
- arteries, capillaries, veins
- Your ______ is the organ that pumps blood.
- heart
- Why is it easy for gases to pass between air sacs and blood?
- Gases pass easily from air sacs to blood through the thin walls of air sacs and capillaries.
- What gases does the body breathe in and breathe out?
- The body breathes in oxygen and breathes out carbon dioxide.
- ________ goes up and _______ goes down in the respiratory system.
- Carbon dioxide and oyxygen
- Where in the lungs are capilarries found?
- Capillaries are found around the air sacs in the lungs.
- What is the aorta?
- The aorta is the largest artery in the body that goes from the heart.
- What is the circulatory system?
- The circulatory system includes the heart, blood vessels and the tubes which your blood flows through.
- What do red blood cells do?
- Red blood cells carry oxygen and carbon dioxide from and to your lungs.
- Where are red blood cells produced?
- Red blood cells are produced in bone marrow.
- What do white blood cells do?
- White blood cells destroy bacteria that invades your body.
- What do platelets do?
- Platelets aid in blood clotting, Stops bleeding.
- Platelets are formed from ________ in bone marrow.
- bone cells
- What is plasma?
- Plasma is the liquid part of blood. (90% water)
- What part of blood is 90% water?
- Plasma is 90% water.
- What are the smallest blood vessels?
- Capillaries are the smallest blood vessels.
- What do the chambers in the heart do?
- The chambers in the heart keep blood that enters the heart from mixing with blood leaving the heart.
- How many chambers doe the heart have?
- The heart has four chambers.
- How are chambers in the heart connected?
- Chambers of the heart are connected by openings that are covered by valves.
- In the heart, what keeps blood flowing in one direction?
- Valves in the heart keep blood flowing in one direction.
- How large is your heart?
- Your heart is as big as your fist.
- When does your heart rest?
- The heart rest only between beats.
- Oxygen passes from ______ to ______.
- Oxygen passes from blood to cells.
- From the lungs, through the heart, oxygen rich blood travels out of the heart through the ________ to ________ then through capillaries to ________.
- From the lungs, through the heart, oxygen rich blood travels out of the heart through the aorta to arteries then through capillaries to cells.