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Lab 11:
Mammalian Organ Systems II –
Respiratory and Circulatory Systems
Task A-1: Rat respiratory system
Task B-2: Rat circulatory system
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Work with same partner as last week
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Use the same rat as last week (if you can’t find it,
get help from a TA)
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If you don’t have a partner, let a TA know
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Follow lab manual directions for opening the chest
cavity (cut up along sternum towards the head)
Task A-1: Rat respiratory system
Task B-2: Rat circulatory system
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See exit activity (in your lab manual); quiz each
other on structures
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Use the figures in your lab manual to help you!
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Don’t destroy structures!
Task A-1: Rat respiratory system
Task B-2: Rat circulatory system
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don’t worry about all of the arteries and veins that
are in your manual – just those on the exit activity
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the iliac arteries become the femoral arteries – just
learn them as a the iliac/femoral arteries
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latex colors:
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yellow – hepatic portal system
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red – arteries to most of body; pulmonary veins
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blue – veins from most of body; pulmonary arteries
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SOMETIMES these are not done correctly
Task B-1: Bovine (cow) heart
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Use tubes to help you get a sense of the flow of
blood through the heart
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Learn the order of blood flow into, through, and
out of the heart – including structure names (blood
vessels, heart chambers, and valves)
Task C-1: Blood smear slide
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Don’t forget the slide this week!
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use Figure 11-8 to help you
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be able to identify each of these cell types (this
makes an excellent slide question or two for the
practical)
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“red blood cells” may have the red color faded out;
go more by shape than by color
also…
You will likely have some extra time after
completing the activities for today’s lab;
take advantage of it for review!!!
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plenty of review material is available for all labs
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all the stuff you need for last week’s lab is out in
case you did not finish