Download Circulatory System.notebook

Circulatory System.notebook
June 08, 2015
Pulmonary Circulation
Returning blood coming back to the right side of the heart from the body and going to the lungs to be recycled.
1
Circulatory System.notebook
June 08, 2015
Systemic Circulation
Oxygen rich blood coming back from the lungs into the left side of the heart and leaving to the rest of the body through the aorta artery.
2
Circulatory System.notebook
June 08, 2015
3
Circulatory System.notebook
June 08, 2015
Lesson 14 Name/ Per.__________________________________
The Pumping Heart
HBS, pp. 110­119
Reference: SI, pp. 486­495
Lesson Objectives:
1. Use a model to explore the double pump action of the heart.
2. Determine the direction of the flow of blood thru the heart.
3. Recognize that humans have a closed circulatory system.
4. Study the structure of the heart.
5. Explain the differences between pulmonary and systemic circulation
Introduction
1. How does blood move thru the body?
Pre­Inquiry “Getting Started “Questions
1. How many chambers does the heart have? __ 4 Chambers _________ 2. Blood going away from the heart travels in _____ Arteries __________________, while blood being carried to the heart travels in ___ Veins________________.
Inquiries 14.1 Analyzing the Siphon pump Heart Model
1. What makes the water begin to flow thru the pump?
The water is drawn into the tube when the bulb on the siphon is squeezed and then released.
2. Through which tube the stiff one or the flexible one does water enter the pump?
Water enters through the stiff tube.
3. What keeps the water from flowing back thru the tube when you release the bulb?
A valve prevents the water from moving back down the stiff tube.
4. Listen closely as you release the bulb? Can you hear clicking sounds? If so what appears to be causing them?
There is a slight click when a valve closes.
5. Label the structures on the heart and relate parts to the pump model on Diagram.
6. Draw arrows to show how blood flows from the heart to the lungs to the heart and then to the body again.
Post­Inquiry “Reflections” Questions
Listen to your heart. What causes the sound you hear in the stethoscope?
4
Circulatory System.notebook
June 08, 2015
5
Circulatory System.notebook
June 08, 2015
http://www.heartpoint.com/theheart.html
http://www.pbs.org/wgbh/nova/eheart/facts.html
Pump Your Heart ­ Music Video
http://www.youtube.com/watch?v=D8LK34hoVpU&feature=related
Heartbeat sound
https://www.youtube.com/watch?v=HUxS21­cf80
Heart bypass surgery
https://www.youtube.com/watch?v=j873zP6ir3o
6
Circulatory System.notebook
June 08, 2015
Carry blood away from your heart; you can feel the force of the heart pumping here.
Carry blood back into your heart; they have valves to prevent backward flow
Very small blood vessels where nutrients, waste, and gas exchange happen.
7
Circulatory System.notebook
June 08, 2015
• 55% of blood
• Liquid component of blood that carries nutrients to cells and wastes away
• 44% of blood
• carries oxygen and iron to the cell
• molecule attaches to Hemoglobin • 1% of blood • the cells which attack foreign bodies that might cause infection
• Small fragments in blood that helps blood clot
8
Circulatory System.notebook
June 08, 2015
•
•
•
•
•
•
•
•
•
•
•
•
•
Aorta­largest Artery leaving heart
Atrium­ upper chamber of heart
Ventricle­ lower chambers of the heart
Artery­blood vessels that carry blood away from the heart
Veins­ blood vessels that carry blood to the heart
Capillary­ blood vessels that exchange nutrients, gas, and waste.
Platelets­ part of blood that aids in clotting
Red Blood cells­ part of blood that carries iron
White blood cells­ part of blood that fights invaders
Plasma­liquid part of blood, made up of water and dissolved materials
Pulmonary artery­ vessels that carries blood away from heart to lung
Pulmonary Vein ­ vessels that carries blood from lung to heart
Valves­ gates in heart that keep unoxygenated blood from mixing with oxygenated blood
• Blood Pressure­ the force exerted by blood against the walls of the artery. High blood pressure can be caused by smoking, high salt intake, being too fat, having high cholesterol, stress. One can lower it with proper eating and exercise and weight control
9
Circulatory System.notebook
June 08, 2015
Practice labeling the heart parts and marking the order of the blood flow.
10
Circulatory System.notebook
June 08, 2015
red blood cells
oxygen
platelets
arteries
heart
veins
intestines
4 chambers
capillaries
E
pulmonary
vein
D
pulmonary
artery
B
F
left atrium
right C
ventricle
left
G
ventricle
aorta
A
11