Circulatory System HW on your desk! Catalyst What is the function of the nervous system? Order the...
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Circulatory System HW on your desk! Catalyst What is the function of the nervous system? Order the following terms from smallest to largest: organ, cell, human, body system. What is homeostasis? Give one example of your body trying to put itself back into homeostasis. Include which systems work on this! Write in complete sen Don’t talk during the
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Transcript of Circulatory System HW on your desk! Catalyst What is the function of the nervous system? Order the...
Circulatory System
HW on your desk!Catalyst
What is the function of the nervous system?
Order the following terms from smallest to largest: organ, cell, human, body system.
What is homeostasis? Give one example of your body trying to
put itself back into homeostasis. Include which systems work on this!
Write in complete sentences!
Don’t talk during the Catalyst!
Have you ever wondered…
How does the heart pump blood throughout our body?
Why are heart attacks deadly?
Objectives
By the end of today, all SWBAT…
Describe the structure and function of the circulatory system
Explain how the circulatory system maintains homeostasis in the human body
Agenda
Catalyst Review Anatomy Back to
Homeostasis Quick questions YOU’RE THE
DOCTOR Exit Question
The anatomy of the circulatory system Key Point #1: The circulatory system
consists of the heart, blood vessels, and blood Heart: pumps blood through four
chambers
The anatomy of the circulatory system Key Point #1: The circulatory system
consists of the heart, blood vessels, and blood. Blood Vessels: carry blood
Arteries: carries oxygenated blood from heart to organs
Capillaries: O2 diffuses into organs, CO2
diffuses outVeins: carries deoxygenated blood from
organs to heart
The anatomy of the circulatory system
Key Point #1: The circulatory system consists of the heart, blood vessels, and blood. Blood Vessels: carry blood
Pulmonary artery: Blood from heart lungs
Pulmonary vein: Oxygenated blood from lungs heart
Blood Flow
Aorta
Big arteries
Capillaries
Vena Cava
Small arteries
Small veins
Big veins
The anatomy of the circulatory system Key Point #1: The circulatory system
consists of the heart, blood vessels, and blood. Blood: fluids and cells that carry nutrients and gassesPlasma: fluid;
carries nutrients and waste
Red blood cells (RBCs): carry O2 and CO2
White blood cells (WBCs): immune system cells
Platelets: clot blood
The function of the circulatory systemKey Point #2: The circulatory system maintains homeostasis by distributing nutrients to cells and taking waste away from cells Blood plasma: nutrients to cells, waste out of cells
RBCs: O2 to cells, blood plasma: carries CO2 out of cells
All doctors have to practice…Whiteboard time!!!
Whiteboard Practice (GP)
(It’s in your notes…) Draw and label the four chambers of the heart, the aorta, and the vena cava
Which chamber of the heart pumps blood to the lungs?
Which chamber of the heart pumps blood to the body?
Whiteboard Practice (GP)
Which chamber of the heart collects oxygenated blood?
Which chamber of the heart collects deoxygenated blood?
Whiteboard Practice (GP)
Which blood vessel brings blood to the lungs? Why do it do this?
Which blood vessel brings blood from the lungs to the heart? Why does it do this?
Whiteboard Practice (GP)
Identify THREE of the four parts of the blood, and describe what they each do.
Whiteboard Practice (GP)
In what two ways does the circulatory system maintain homeostasis?
(Think: what bad stuff would happen if it worked incorrectly?)
Whiteboard Practice (GP)
James is a carrier for sickle cell, which decreases the amount of oxygen RBCs can carry. If James had sickle cell, how
would this disorder stop his circulatory system from maintaining homeostasis?
(Think: why will he die? )
Whiteboard Practice (GP)
A crazy student stabbed Ms. S in the right ventricle for giving out too much homework last night! How will this injury stop her circulatory system from maintaining homeostasis? (Think: why will she die?)
Whiteboard Practice (GP)
Jasmine and her boo have a child (after college and when they are financially
stable). Unfortunately, it is born with a rare birth defect that causes it to have too little blood plasma. How will this injury stop the child’s circulatory system from maintaining homeostasis?(Think: why will it die?)
Whiteboard Practice (GP)
THERE’S A PATIENT IN THE ER!!!Can you handle it on your own?
Key Point Wrap-Up
Key Point #1: The circulatory system consists of the heart, blood vessels, and blood What does each part do?
Key Point #2: The circulatory system maintains homeostasis in two ways Blood plasma: nutrients to cells, waste out of
cells RBCs: O2 to cells, Blood plasma: CO2 out of
cells
Exit Questions
Describe the function of RBCs. Contrast veins and arteries.
2 differences – DO NOT WRITE “THE COLOR”!
Someone shot Ms. S in her left ventricle!!! Describe the function of the left ventricle.
How will this injury stop her circulatory system from maintaining homeostasis? (Think: why will she die?)
Write in complete sentences!
Don’t talk during the Exit Question!
