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