Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Cardiovascular System

Year 7/8 Science
by

Scott Anderson

on 14 October 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Cardiovascular System

Cardiovascular System
The cardiovascular system includes:
Plasma (55% of your blood)
90% water
10% dissolved nutrients

Blood Contents
Blood
Blood
Vessels
Heart
Red Blood Cell
Platelets
Red Blood Cells (45% of your blood)
Transport oxygen

White Blood Cells (<1% of your blood)
Immunity

Platelets (<1% of your blood)
Blood clotting

Arteries and Veins
Endothelium
Smooth Muscle
Connective Tissue
Artery
Arteriole
Endothelium
Basement
Membrane
Endothelium
Smooth Muscle
Connective Tissue
Venule
Vein
The Heart
Acts as a pump to transport nutrients around the body
Made up of 4 chambers:
Left Atrium
Left Ventricle
Right Atrium
Right Ventricle
Lies in the centre of the chest, facing slightly to the left
About the size of 2 fists
Superior
Vena Cava
Right
Ventricle
Inferior
Vena Cava
Pulmonary
Arteries
Right
Atrium
Pulmonary
Vein
Left
Ventricle
Left
Ventricle
Pulmonary Arteries
Pulmonary Veins
Left
Atrium
Aorta
Anatomy of the Heart
Fun Fact:
Veins do not have a pulse
Heart Handout
You will receive a structure of the heart
Your task is to:
Write 3 facts relating to that structure
Specify where the blood comes from and where it goes to
You will be sharing it with the rest of the class
Fun Facts
If you strung your blood vessels together you would circle the globe 2.5 times!!
The average adult has approximately 5 litres of blood
Your heart beats 100,000 times per day or 36 million times per year
The Heart
Blood Vessels
White Blood Cell
Check Your Pulse
Count the number of beats for 15 seconds
Multiply the result by 4
This is your heart rate in beats per minute

Roles of the Cardiovascular System
1) Transport water, O2 and CO2
2) Distribution of nutrients and waste removal
3) Maintenance of body temperature
4) Circulation of hormones


Arteries
Arterioles
Capillaries
Venules
Veins
Artery
Arteries
Thick-walled to withstand high blood pressure
Carries oxygenated (mostly) blood
away
from the heart
Artery = Away
Can detect a pulse in arteries
Artery
Arteries
Thick-walled to withstand high blood pressure
Carries oxygenated (mostly) blood
away
from the heart
Artery = Away
Can detect a pulse in arteries
Arterioles
Thinner than arteries
Carries oxygenated (mostly) blood toward capillaries
Artery
Arteriole
Nutrients/O2 etc must go to all tissues
1-cell thick wall to allow for movement
Capillaries
Arteriole
Venules
Smaller than a vein
Carries deoxygenated blood from the capillaries into the veins
Venule
Veins
Uses one way valves to carry deoxygenated blood back to the heart
Walls thinner than arteries
Very low pressure
Transported by muscle contractions
Venule
Vein
Blood Vessels

Pulmonary Arteries
Right Atrium
Venae Cavae
Limbs
Aorta
Left Ventricle
Left Atrium
Pulmonary Veins
Lungs
Right Ventricle
Full transcript