Now we're going to take a look at this example where we're going to read a bunch of statements. And for each statement, if it seems to apply more to anatomy, we'll mark it with an 'a'. More to physiology, we'll mark it with a 'p'. So with that, let's take a look. First up, we have the hormone insulin is released when blood glucose levels increase.

Take a second. Anatomy or physiology? Alright. Well, when I read that, I don't see anything about structure. What I do see is an action verb.

Right? Something's being released. It's being released in response to a change in the body. Something's increasing. How the body responds to this change, that's definitely a function.

So a function, I'm going to mark it with 'p' for physiology. Next, we have 2 major blood vessels enter the liver, the hepatic portal vein and the hepatic artery. Think anatomy or physiology? Well, we're talking about where blood vessels go, what they connect to. That definitely sounds like structure.

It doesn't tell me what they are doing. So if we're just talking about structure, that's going to be a statement of anatomy. I'll mark it with an 'a'. Next, we have electric charge in neurons is maintained through a gradient of ions across the cell membrane. Alright, think about that one for a second.

Okay. We have electric charge being maintained across a gradient. Alright. When we're talking about things being maintained across a gradient or things changing across a gradient, that's how something is working. There isn't really much of anything in here about structure.

It mentions a cell membrane, but it doesn't tell me anything about the structure of that cell membrane. So this is about how something works, what it does. That's a statement of physiology. I'm going to mark it with a 'p'. Next, we have ligaments and tendons are largely composed of collagen fibers.

Take a second to think about that one. Alright. What something is made of, how it is built. It's not telling me what it does, so how something is built is a statement of anatomy. I'll mark it with an 'a'.

Next, we have 206 named bones in the human body. Take a second to think about that. Alright. Do you know what the bones do? No.

Do you know how many there are? Does that tell you something about how the body is built? Yes. So that's going to be a statement of anatomy or mark it with an 'a'. Finally, activation of the sympathetic nervous system will increase heart rate and elevate blood pressure.

One more time: anatomy or physiology. Alright. Keywords here: activation, increasing heart rate, elevating blood pressure. This is all talking about the body doing something, how it works. So, again, that's going to be physiology.

I'll mark it with a 'p'. Alright. We'll practice more of these going forward, but just always remember, anatomy is structure, physiology is function.