00:01
So how do the thyroid and parathyroid glands work together to regulate blood calcium homeostasis? well, here i'm going to draw out this black shape here.
00:14
This will be the thyroid.
00:16
And in red, i'm going to draw the parathyroid glands.
00:23
There we go.
00:25
Okay, so let's say we have a situation where we have a really high blood calcium.
00:32
So there's a lot of excess calcium in the blood.
00:47
So this is a situation.
00:49
In which the thyroid is going to respond by secreting a hormone known as calcitonin.
00:59
So that's calciton -i -n -n -i -n.
01:08
And calcitonin helps balance out this blood calcium level by promoting the uptake of calcium by the bones.
01:23
So you've got all this excess calcium.
01:25
But with calcitonin, it helps the bones.
01:29
And here i'll draw like a bone over here, reabsorb this excess calcium, promoting homeostasis.
01:38
So i'll draw this, well, i'll circle all of this in blue.
01:42
Calcitonin promotes calcium uptake by the bones in a situation of high blood calcium...