Download Circulatory System Stations File

STATION 1
Blood Pressure
The average BP is 120/80 – but it does vary within this range.
Concerns are extremes outside of this such as hypertension & hypotension.
Using an electric blood pressure meter
How to get an accurate reading:




Be seated and have your arm stretched out in front of you and resting on the lab table.
Sit quietly
Breath normally
Have someone else take your blood pressure for you.
Use the electric meter to take your blood pressure.



Put the cuff on your left arm. Line up the arrows with your elbow.
Make sure machine is reset
Inflate the cuff to about 150 then release the bulb and let the machine do its job
What reading do you get?
Hypertension: high BP (140/90 or higher)
 Symptoms: headaches and feeling anxious
 Causes: genetics, high cholesterol, high salt intake, age, diabetes, no exercise, rapid weight
change, smoking, kidney failure
 Increases risk of cardiac disease, renal disease, arteriosclerosis, eye damage, stroke
Hypotension: low BP (systolic below 100)
 Symptoms: dizziness and fainting
 Causes: dehydration, heart conditions (heart attack, heart failure), anemia, thyroid
disorders (Parkinson’s), some medications (such as diuretics, beta blockers or medications
for anxiety, depression, erectile dysfunction, CNS disorders), septic shock
Claremont Biology 12
STATION 2
Microscopic Examination of the Blood
Look at the slide of human blood under the compound light microscope.
1. Draw a picture of what a RBC, WBC and platelet looks like.
2. Which formed element is the most numerous on the slide?
3. Give one unique characteristic and one function of a RBC, WBC and platelet.
4. Where are the 3 formed elements made in the body?
5. What percentage of the blood are RBC’s? WBC’s? Platelets?
6. What is the liquid part of the blood called? What percentage of the blood
does it make up? How much of this part of the blood is made up of water?
Claremont Biology 12
STATION 3
Trace the pathway of a Red Blood Cell
1. Your job is to trace the pathway of a RBC as it travels from the right
atrium of the heart, to the lungs, back to the heart, out to the kidneys,
and back to the right atrium of the heart.
2. You are to include the names of all the parts of the heart chamber,
valves and blood vessels the RBC will travel through as the RBC makes its
journey around the body.
3. You may do this as a flow chart:
Right atrium  right AV valve right ventricle etc…….
Claremont Biology 12
STATION 4
1. Explain how blood pressure, blood velocity, and the cross sectional area of the
blood vessels is affected along the way.
2. Explain what happens in terms of capillary-tissue fluid exchange in a capillary
bed. Be sure to distinguish between the arteriole end, half way across, and
the venule end of the capillary bed.
Claremont Biology 12
STATION 5
Blood Types
1. What is an antigen?
2. What is an antibody?
3. Can you fill in the blanks of this table? DO NOT COPY THIS TABLE!! Just
discuss this table with other members at this station.
Blood
Type
A
B
AB
Antigens
present
A
B
?
Antibodies
present
For B antigen
For A antigen
None
O
none
?
Can accept
blood from
A or O
?
A, B, AB, or
O
Only O
Can give
blood to
?
B, AB
AB
A, B, AB,or
O
4. What blood type above would be known as the universal donor?
5. What blood type above would be known as the universal recipient?
Claremont Biology 12
STATION 6
1) Assignment:
a) Get a full piece of paper and divide it into 4 quadrants.
b) Label the 4 quadrants: Type A, Type B, Type AB, and Type O.
c) Use the laminated cut outs to show all 4 blood types and their
corresponding antibodies.
d) Draw these blood types and their corresponding antibodies into the
appropriate quadrant on your page.
e) Label the universal donor and the universal recipient.
f) Use a different colour to draw arrows from each blood type to every
blood type it can donate to.
2) If blood type A was given to a person with blood type B, the antibodies for the
A antigen would attach to the blood cells of the type A blood and would cause
it to agglutinate (clump or clot). Explain the antigen-antibody response that
caused this agglutination to occur.
Claremont Biology 12
Station 7
Label the external structures of the heart:
Claremont Biology 12
Station 8
Label the internal structures of the heart:
Claremont Biology 12
Station 9
Label the electrical structures of the heart and answer the following questions:
d) When “a” is stimulated by the vagus nerve, what will be the direct result?
e) When “b” and “c” are stimulated what is the direct result?
f) What is the region in the brain that is responsible for causing the heart to beat?
g) What division of the nervous system will be active during normal activities (“rest
and digest”)?
h) What division of the nervous system will be active during stressful activities
(“fight or flight”)?
Claremont Biology 12
Station 10
Determine which major blood vessel each letter is:
Claremont Biology 12
Station 11
Identify the structures (A through I) within the diagram:
Claremont Biology 12