Dr Orsini asked that we not use the second floor.
clinical correlation tomorrow at 11 am in rm 13 by orthopedic surgeon, 
will discuss sx of hip or knee- no chalk talk tomorrow.

Overview of the stifle:

note that the diagrams have phenomenal detail. try to focus on the stuff 
that is in BOLD in the text. don't worry about the other stuff.

p 94 of green book....don't worry about transverse lig and meniscofemoral 
lig.

[diagram of stifle]
note that the distal femur is rounded and proximal tibia is flat. So, the 
menisci sit in the joint, see diagram.

This lecture basically equals pp 92-95 of small millers. So, not much to 
write down :).
    
Moving along. Thorax.

Now, there is a lot of movement of lungs and heart w/in thorax, and we 
need to prevent friction within this cavity. The best way to do that is 
to make very smooth surfaces, and fluid bags around them. can't fill 
thorax w/fluid, but you can contain the fluid in a bag, analagous to a 
bursa.

main organs of thorax = L lung, R lung, heart. each of these has its own 
fluid bag. note that lungs begin to develop on the tops of the bags, and 
then they grow, and push into the bags, until finally, the lung is simply 
covered by two layers of membrane with some fluid between them. The inner 
membrane is intimately associated with the lung surface. parietal pleura 
is the outer membrane, and the visceral pleura covers the lung surface. 
The heart has a parietal and visceral pericardium, set up similarly.

Dr Orsini made this weird demo with a bucket with ribs drawn on it and 
blown up plastic bags :)

Note that the area between the lungs is called mediastinum. the heart 
sits within the mediastinum.

Now, go back to parietal pleura. The lateral surface of the parietal 
pleura, which is lying over the rib surface, is called costal parietal 
pleura. The part facing the mediastinum is called mediastinal parietal 
pleura. There is also diaphragmatic parietal pleura, which is the part 
associated with the diaphragm in the caudal thorax.