The document describes the functions and components of the human circulatory system, highlighting how blood circulates within vessels to transport oxygen, nutrients, and waste. It details the roles of arteries, veins, and capillaries, explaining the oxygen-rich and deoxygenated blood flow in the body. Additionally, it includes links to various images illustrating blood and circulatory system elements.

1. Twitter: @LilyKotze

2. Function Bring nutrients and oxygen to cells.
Remove waste products so it can be excreted

3. Blood
Living tissue that circulates
through the body.
Transports oxygen,
nutrients, hormones and
waste.

4. Liquid part:
Consists of
mainly
water.
Transports
nutrients,
waste
products
and gases
in dissolved
form.

6. ;kajno;nd
Humans have a
closed circulatory
system.
This means blood
circulates around
the body without
ever leaving the
blood vessels.
Artery Vein
Arteriole Venule
Capillary network

7. Capillaries: Many small, narrow tubes.
Walls are very thin – cells come into close contact with the blood.
Capillaries supply cells with O2 and nutrients, and removes waste
products and CO2.
Capillaries combine again to form veins.
Veins: Transport deoxygenated blood back to lungs via the heart.
Thinner, less muscled walls.
The pulmonary vein transports oxygen-rich blood from the lungs to the
heart. It is the only vein that transports oxygen-rich blood.
Arteries: Transport oxygen-rich blood from the heart to the cells of
the body.
Walls are thick, muscled and elastic - The aorta is the main artery.
The pulmonary artery transports deoxygenated blood from the heart to
the lungs. It is the only artery that transports deoxygenated blood.

9. Functionsof
Pumps deoxygenated blood to the lungs where
it gets rid of CO2.
Blood enriched with O2 flows back to the heart
from the lungs.
From where it is pumped to the rest of the body.
In this way the rest of the body is supplied with
O2.

10. Title slide: http://3dprint.com/wp-content/uploads/2014/02/heart-feat-real.jpg
Slide 2: https://media.giphy.com/media/kR1cjIwNPatjO/giphy.gif
Slide 3: http://marketingresearchbureau.com/wordpress/wp-
content/uploads/2012/09/iStock_000006455765XSmall.jpg
Slide 4: Plasma:
http://www.healthcarepackaging.com/sites/default/files/styles/lightbox/public/field/image/AD_Plasma_Bag_1.jpg?i
tok=oB8Yn_zF Red blood corpuscles: http://www.interactive-biology.com/wp-
content/uploads/2012/07/RedBloodCells3.jpg White blood cells: http://cx.aos.ask.com/question/aq/700px-
394px/functions-white-blood-cells_63a18a771a2dcf5e.jpg Platelets: http://genelon.in/images/new/R-and-D/In-
Vitro-Production-of-Platelets-from-Human-Umbilical.jpg
Slide 5: Full body: http://cdn.rainbowresource.netdna-cdn.com/products/009014.jpg Diagram:
http://carignanapbio.weebly.com/uploads/1/8/3/9/18395499/___721555.jpg
Slide 6: http://whatishiv.weebly.com/uploads/2/0/6/5/20650868/757834418.png?383
Slide 7: Artery: http://www.full-health.com/image_artery_plaque_atheroma.jpg Vein: http://biology-
forums.com/gallery/14755_10_09_12_7_22_10_85222242.jpeg Capillaries:
http://www.shockwavetherapy.ca/capillaries.jpg
Slide 8: Cross section: http://www.investinlibya.org/wp-content/uploads/2015/03/Surgical-anatomy-the-inferior-
vena-cava.jpg Gif: http://www.niusnews.com/upload/imgs/default/14MarG/TransMedics/3.gif
Slide 9: http://www.netanimations.net/Moving-picture-heart-beating-gif-animation.gif
TEXT: du Plessis et al: DocScientia Textbook and Workbook Grade 9 Natural Sciences CAPS; 2013
info@docscientia.co.za