Biopsychology R2

Biopsychology L2
Biopsychology revision lecture 
Date cannot be acertained

Biopsych PAL will start this week.

Visualisation of brain cells

What they're trying to show is that meth causes damgge to the brain and glial cells are brought in to help or decrease the inflammation. They're tying to show that theres a drug that blocks the toxic effects of meth. You can measure this change via the bright green square. G fat the more g fat you have the more astrocites you ahve. 

The interesting pattern is between slide B and D the one with meth and the one with meth and the developed drug. 

The graph shows how you can use immuno flurescence to show what affects cells. 

The most imp is the overlay to show how they all work together. 

Nervous systems 
Q. What was the point at looking at the NS's? 
how the brain communicates with the body 
to explore healthy cells 

CNS>cerebrum>cerebellum>brain stem>spinal cord
PNS >somatic>autonomic
Out of these two which one is considered involuntary?
Autonomic
Whereas your somatic isn't involuntary. 

Somatic
Ventral (think venting) it's in the front 
Dorsal (think dolphin) it's in the back

Autonomic nervous system (ANS)
sympathetic: fight, flight, fornication, food (arousal)
parasympthatic (non emergency proceses: digestion, growth, immune responses and energy storage. 

Q. What do healthy cells need to survive? (slide 4) 
They need to be kept at a normal level (homeostasis)
They require 
-oxygen because it ends up giving us energy
-nutrients, how do we get these? From food. 
-water
- we also need glucose (it's another way our cells can make energy) 
- we need a ph of 7.2/7.4 

What happens if it becomes too acidic? 
They can't fire (there's no message) 
An acidic ph is lower than 7.2/7.4.

What is alkaline? 
You get excessive firing. 

Spinal cord 
Sympathetic:
Spinal cord and cell body plus terminal they meet in the…