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Circulatory and Respiratory SYSTEMS
In Today’s Lesson We WILL…
Understand that: 1.1a Scientific explanations are built by
combining evidence that can be observed with what people already know about the world.
1.2b Humans are complex organisms. They require multiple systems for digestion, respiration, reproduction, circulation, excretion, movement, coordination, and immunity. The systems interact to perform the life functions.
START with the HEART One of the functions of the circulatory system is to
transport oxygen to the cells and carbon dioxide away from the cells
The heart pumps the blood that carries these gases, through 3 different types of vessels: Arteries Capillaries Veins
Oxygen is carried in the blood by hemoglobin (a protein)
REVIEW the PARTS*REMEMBER: “LEFT” is your left“RIGHT” is your right
*ATRIUM-----> VENTRICLEBlood travels in ALPHABETICAL ORDER
*MAKE SURE THAT YOU KNOW YOUR PARTS!
http://www.k12handhelds.com/data/curriculum/ebook-humanbody/img/heart_parts.jpg
REVIEW the PARTSREMEMBER:• ARTERIES (A=AWAY)• CAPILLARIES• VEINS
AGAIN -Blood travels in ALPHABETICAL ORDER
http://www.pearsonsuccessnet.com/snpapp/iText/products/0-13-115075-8/text/chapter30/30images/30-02.gif
REVIEW the PARTS* RED BLOOD CELLS are one of the types of cells in the blood* They carry oxygen using a protein called HEMOGLOBIN* There are roughly between 20-30 trillion red blood cells in an adult human
http://www.qmul.ac.uk/media/news/items/se/102687.html
Let’s LOOKWhat to look for:• The parts of the
heart• The oxygenated
and deoxygenated blood
• How the valves work
THINK ABOUT:• Where is the “red” blood coming
from?• Where is the “blue” blood coming
from?• Why are the valves important?
LEFT to the LUNGS The primary function of the respiratory system
is to supply the blood with oxygen and to remove carbon dioxide
The lungs do not move by themselves – the diaphragm contracts and relaxes causing the pressure in the chest cavity to change and, as the lungs expand and return to resting, air is moved in and out
REVIEW the PARTS
http://g09respirationr3c.wikispaces.com/file/view/ei_0372.gif/340836444/386x367/ei_0372.gif
*Nasal/Oral Cavities*Pharynx: Shared by the digestive and respiratory system*Larynx: “Voice Box”*Trachea*Bronchus*Bronchioles*Alveoli
REVIEW the PARTS
http://www.rise.duke.edu/apep/pages/media/mini/mini27f01.jpg
Both Oxygen and Carbon Dioxide diffuse from levels of higher concentration to lower concentration.
The same thing happens at the cells…and the blood returns to the heart to start its journey all over again.* HOW IS THE OXYGEN USED IN THE CELL?
Let’s LOOK
The BIG Picture
https://blissbiology.files.wordpress.com/2015/04/cirulatory-system-diagram.jpg
Right Atrium Right VentricleLUNGS: Artery Capillary Veins
LUNGS to the LEFT Atrium Left Ventricle BODY: Artery Capillary Veins
…and back again…
Right Atrium Right VentricleLUNGS: Artery Capillary Veins
LUNGS to the LEFT Atrium Left Ventricle BODY: Artery Capillary Veins
Crash Course – Circulatory and Respiratory Systemshttps://www.youtube.com/watch?v=9fxm85Fy4sQ
And FINALLY… EXIT TICKET – Regents Questions HOMEWORK:
Finish any lab questions that you have not completed.
Be ready for a quiz tomorrow