Cardiovascular System Essential Questions: How does the cardiovascular system transport materials to and from your cells?
What do we already know about the heart and blood ?
Topic #1: Purpose and Parts Cardiovascular system purpose = transports materials around your body. Ex. = Oxygen and energy
Topic #1: Purpose and Parts Your cardiovascular system is like the highway for your body’s materials
What would happen if our bodies didn’t have blood? Partner Talk: 1 minute What would happen if our bodies didn’t have blood?
Topic #1: Purpose and Parts Three main parts: blood, heart, blood vessels
Topic #2: Blood! Body contains 1.5 gal of blood Blood = Plasma + Red blood cells + white blood cells + platelets
Topic #2: Blood Plasma: Liquid mixture of water, minerals, nutrients, sugar, proteins, ext.
Topic #2: Blood Red blood cells: Deliver oxygen to cells White blood cells: Defend body against viruses Platelets: Parts of bone marrow cells in plasma that stick together to stop bleeding
Partner Talk Partner in odd # seat: What would happen if you had a low white blood cell count? Partner in even # seat: What would happen if you did not have any platelets?
Drawing Break (3-5 minutes) Blood pic. on pg 31 of textbook In the top left hand box, draw a diagram of blood. - Include labels of plasma, red blood cells, white blood cells, and plasma. - Color if time
Topic #3: Heart Heart structure: - 2 sides divided by a wall - 4 sections/chambers total (2 on each side)
Topic #3 Heart Heart: Pumps blood in 2 directions Pumps blood without oxygen to lungs (left side) Pumps blood with oxygen to rest of body (right side)
Drawing break: 3-5 minutes Pics on pg. 32 of textbook Draw a diagram of your heart Label 4 chambers, what which side pumps oxygen rich and oxygen poor blood
Topic 4: Vessels Vessels = Tubes that deliver blood 3 types of vessels: 1.) Arteries – Carry blood away from heart 2.) Capillaries – Very thin (1 cell thick) vessels that deliver oxygen/nutrients/water to other tissue 3.) Veins – Carry blood back to the heart
Topic 4: Vessels Arteries
Topic 4: Vessels Capillaries
Topic 4: Vessels Veins
Partner Talk Odd # Partner: What is the difference between a vein and an artery Even # Partner: Discuss why we have roughly the same amount/distribution of veins and arteries but a way higher number of capillaries
Drawing Break #3 (3-5 mins) See pg. 33 in textbook Draw a vein, an artery, and a capillary Color if time
Drawing Break #4 Color your gingy man and glue him into the fourth box. Think: What is your gingy man missing?
Cardiovascular System Review Video https://www.youtube.com/watch?v=_lgd03h3te8