Just wanted to pull all this together in one place so that you could look at it anytime and hopefully have more clarity on what I expect you to know for our next exam.

Skin

Slides 53-56: I just put these in for fun/interest/real life relevance – no need to memorize anything on these slides.

Blood

In general:

• DON’T memorize reference ranges for the red cells, white cells, and platelets!
• DO know the relative amounts of each type of white cell in the differential count. Use the mnemonic “Never Let Monkeys Eat Bananas = Neutrophils (most common), lymphocytes, monocytes, eosinophils, basophils (least common).
• DON’T memorize the exact lifespan of red cells, platelets, and neutrophils – just know that in relative terms, red cells stay in the blood for a few months, platelets stay in the blood for a few days, and neutrophils stay in the blood for a few hours.

Specific slides:

• Slide 11: DON’T memorize exact percentages of the contents of plasma! But DO know relatively what makes up most of the plasma (water), and which of the proteins in the blood is most abundant (albumin).
• Slide 16: DON’T memorize all the names of the stuff on this slide! But DO notice that there is a cytoskeleton underneath the red blood cell membrane, and DO know that there are a bunch of proteins involved in this delicate structure, and DO remember that spectrin is one of these proteins.
• Slide 18: I probably don’t need to tell you this, but DON’T memorize any of the numbers on this slide. DO note that there is a pale zone in the center that has very little hemoglobin (this is where the concavities in the cell membrane come close together, so there’s no room for hemoglobin here)
• Slides 41, 42, 57, and 58: DON’T memorize the stuff on these slides right now. We’ll cover this material in later lectures.