Isa Flashcards
Similarity’s between artery and rubber tube
Representative lumen
Smooth
No valves
No exchange/ diffusion
Difference between arteries and rubber tube
No muscle in tube
No pressure in tube
Not pulse in tube
What variations may be caused in the experiment
Stop watch judgement
Speed of pouring water
Could we be more precise with timing?
No due to reaction times even if we measure it in smaller measure
Why wouldn’t the blood pool
Pressure, capillaries beyond arteries and there is a large area for it to move in to
What are the advantages of narrow capillaries
Short diffusion pathway
Fast diffusion rate
Narrow lumen - lots of. Blood cells are in contact with lumen
Why is this diameter limited
Size of red blood cell - if capillaries are any smaller then roc won’t fit though
What is the greater than and qual too sign
> /
Limitation of histogram ?
Data groups have to be discrete
Why would embolism be in recorded
Develop later in life
Small scale so unnoticed
Treated by another doctor
Why do doctors not get told who they are treating
To over come bias
What did you measure in the method? Time
Could reliability of the measurement affect rate of flow ?
yes- not accurate and then if you change the person they finish at different times
Why would tissue fluid loose volume or pressure
Due to tissue fluid lost in lymph
Flow of blood from leg to pulmonary artery
Lower leg Inferior vena cava Right atrium Semi lunar valve Right ventricle Pulmonary artery
What did you measure in the method? Volume of water
Could reliability of the measurement affect rate of flow ?
Volume of water- yes- larger amount means effects on rate of flow
