Homework For Saturday:
Vital Signs Post Lab. Your data is under the Jan 8. Resource (Week 4) on your veracross website.
On Thursday we delved further into the circulatory system by comparing other types of organisms circulatory/respiratory systems to humans.
Cricket: Has a respiratory surface but no capillaries
Fish: Gills for gas exchange (high surface area) and into the capillaries from the gills, 2 chambered heart, and hey a fish DOES have 2 types of capillaries!
Raccoon: 4 chambers, lungs and circulatory system similar to humans
We looked at the connection between the respiratory system and the circulatory system (Where and Why are the connected?). We talked a bit about the excretory system as well (how we remove nitrogenous waste from our body).
We started to determine structure and function and the pathway of blood.
Left Ventricle - the most muscle (Can you answer why it needs this?), largest chamber, carries oxygenated blood (WHY?).
Aorta- The largest arteries. Why is it an artery? Where does it go?
Remember Aorta - systemic arteries (one of these is the carotid) ->systemic arterioles -> systemic capillaries (what type of blood do these have?)
We will continue to trace the path and talk about structure/function saturday, but in the mean time here is an abridged video of the path (what parts is it missing?)
We started talking about the make up of blood
Plasma - the liquid portion (why do you need a liquid?)
RBC -red blood cells (what do these do?)
WBC - white blood cells
Below is a link to a quick "game" on the circulatory system. Some questions we've gone over others are not as detailed, but feel free to try!
Circ. Game
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