lab 11: mammalian organ systems ii – respiratory and circulatory systems

Lab 11: Lab 11: Mammalian Organ Systems II Mammalian Organ Systems II

– Respiratory and – Respiratory and Circulatory SystemsCirculatory Systems

• Work with same partner as last week

• Use the same rat as last week (if you can’t find it, get help from a TA)

• If you don’t have a partner, let a TA know

• Follow lab manual directions for opening the chest cavity (cut up along sternum towards the head)

Task A-1: Rat respiratory systemTask B-2: Rat circulatory system

• See exit activity (in your lab manual); quiz each other on structures

• Use the figures in your lab manual to help you!

• Don’t destroy structures!

Task A-1: Rat respiratory systemTask B-2: Rat circulatory system

• don’t worry about all of the arteries and veins that are in your manual – just those on the exit activity

• the iliac arteries become the femoral arteries – just learn them as a the iliac/femoral arteries

• latex colors:

• yellow – hepatic portal system

• red – arteries to most of body; pulmonary veins

• blue – veins from most of body; pulmonary arteries

• SOMETIMES these are not done correctly

Task A-1: Rat respiratory systemTask B-2: Rat circulatory system

• Use tubes to help you get a sense of the flow of blood through the heart

• Learn the order of blood flow into, through, and out of the heart – including structure names (blood vessels, heart chambers, and valves)

Task B-1: Bovine (cow) heart

• Don’t forget the slide this week!

• use Figure 11-8 to help you

• be able to identify each of these cell types (this makes an excellent slide question or two for the practical)

• “red blood cells” may have the red color faded out; go more by shape than by color

Task C-1: Blood smear slide

You will likely have some extra time after completing the activities for today’s lab; take advantage of it for review!!!

• plenty of review material is available for all labs

• all the stuff you need for last week’s lab is out in case you did not finish

also…