Download SNC2D1 Date: Name: MAIN FUNCTION OF THE CIRCULATORY

SNC2D1
Date: __________________
Name: _______________________
MAIN FUNCTION OF THE CIRCULATORY SYSTEM
1.
2.
3.
4.
______________________________________________
______________________________________________
______________________________________________
______________________________________________
WHAT DOES THE CIRCULATORY SYSTEM TRANSPORT?
1.
2.
3.
4.
________________________:
________________________:
________________________:
________________________:
absorbed from the intestines during digestion
released from the Endocrine system in conjunction with the Nervous system
inhaled by the lungs during respiration
Ex: CO2 eliminated via veins and the lungs
Ex: other waste via kidneys and urine
There are 3 main parts:

Blood –

Blood Vessels –

Heart –
PARTS OF THE CIRCULATORY SYSTEM
BLOOD:
There are 4 components:
Component
Description and Function
RED BLOOD CELLS (RBCs)
- Contains protein
_____________________ that
allows RBCs to bind to ___________
and transports it
- Fights, destroys and defends the
body from ____________________
caused by _____________,
____________ and other
_______________________________
- Help in __________________, to
__________ wounds and stop
bleeding
- Blood clots when a _____________
is damaged
- _____________________ liquid
which carries blood cells, wastes,
nutrients and hormones
WHITE BLOOD CELLS (WBCs)
PLATELETS
PLASMA
% of
Blood
THE HEART

The Heart is Made up of 3 Tissues:
(A)
(B)
(C)
OTHER SPECIAL FEATURES OF THE HEART
 Node Cells –
that regulates the
by
signalling the
of the upper and lower chambers to ______________________
after it has filled with blood
 Valves – keeps blood _______________________ in the ________________________ direction
STRUCTURE
 The heart contains __________ Chambers
2 Small Upper Chambers = _________________________
2 Big Lower Chambers = ____________________________
 The right and left side of the heart are separated by a wall of muscle called the _____________________
 The chambers are separated by ____________________
that_________________________________________________________________________________
HEARTBEAT

The sound of a heartbeat [Dubb-Lubb] comes from the __________________ of _________________
when blood leaves the upper and lower chambers of the heart

Frequency (heart rate) change is due to:

Normal Heart Rate – _________________________
BLOOD VESSELS
Description:
There are 3 types:
Blood Vessel
Arteries
Description
- Carry blood ___________ from the heart
- Under ________ pressure, therefore artery walls
are ___________
Veins
- Carries blood ___________ the heart
- _______ pressure, _______ walls
- Has ___________ to make sure that blood moves in
the right direction
- Tiny blood vessels with _______________ walls to
allow ___________________ to occur
Ex. ________________ must diffuse from the blood
cells to the __________________
Capillaries
Diagram
CIRCULATION OF BLOOD

Right side of the heart carries
________________________ blood to the
_________________________

Blood picks up ______________ from the lungs
and moves to the left side

Left side of the heart carries
_____________________________ blood to
___________________________________

Tissues use _____________________ and return
oxygenated blood to the right side of the heart
From the
Arteries
Capillaries
Body Tissue
Veins
Capillaries
DISORDERS OF THE CIRCULATORY SYSTEM
CIRCULATORY
DISORDER
HIGH BLOOD
PRESSURE
TARGET
CAUSES
 Increased
____________
 Some have blood
pressure all the time
HEART
ATTACK
 Plaques shut off
________________
and prevent
___________ from
getting to the heart
STROKE
 __________ or
___________________
in the
______________
leading to the brain
DETECTION AND DIAGNOSING
Angiogram:
ECG:
Homework Read 3.4, Complete #1-9.
SYMPTOMS
PREVENTION/
TREATMENT
 Exercise
regularly
 Eat healthy
 No smoking
 Regular medical
check-ups
 No alcohol or
drink in
moderation
SURGERY MAY BE
NEEDED IN
EXTREME CASES