Midterm 1 Review

Midterm 1 Review - I. II. Nervous system I and II: NS...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
I. Nervous system I and II: NS basics, APS, ect. a. Neurons are cells that can get excited b. Supporting cells such as the gilia cells c. Structure of the NS i. CNS 1. consists of the brain and spinal cord 2. purpose to integrate data ii. PNS 1. everything else 2. Splits into the somatic-conscious control over such as the skeletal muscles and also into the autonomic-not under conscious control. The autonomic splits into the parasympathetic “rest and digest,” sympathetic-“fight or flight reflex; it is activated the body is on high alert. Enteric is gut control. iii. Different types of neurons 1. Sensory a. One receives the information b. It generates a generator potential when it receives the signal i. It makes sense and it is starting the entire process ii. It will turn into an action potential (presyn cell) 2. Interneurons a. Process info and are found in the brain and spinal cord b. The postsyn cell receives a PSP which turns into an action potential 3. Motor Neurons a. Issue the commands b. It receives a postsynaptic potential and create an action potential 4. Generator potential is a graded potential meaning that if we don’t get enough a signal then will not produce an AP iv. Resting potential 1. Picture 2 2. when we have different ions at different equilibriums potassium wants to be at -92mv and sodium wants to be at +55mV. 3. More permeable toward potassium. 4. at resting potential there is a lot of potassium inside the cell. The proteins have a negative charge which help them pull the potassium back. 5.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/25/2010 for the course BILD BILD 2 taught by Professor Schroeder during the Spring '08 term at UCSD.

Page1 / 4

Midterm 1 Review - I. II. Nervous system I and II: NS...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online