Neurones

Description

A Levels Biology (Response to stimuli) Mind Map on Neurones, created by cookietime on 11/03/2014.
cookietime
Mind Map by cookietime, updated more than 1 year ago
cookietime
Created by cookietime over 10 years ago
28
1

Resource summary

Neurones
  1. Structure
    1. cell body
      1. contains nucleus
        1. lots of rough endoplasmic reticulum
          1. produces proteins and neurotransmitters
        2. dendrons
          1. dendrites
            1. carries nerve impulses TO cell body
          2. axon
            1. single long fibre
              1. carries nerve impulses AWAY from cell body
              2. surrounded by
                1. Schwann cells
                  1. protection and electrical insulation
                    1. carry out phagocytosis
                      1. removal of cell debris
                      2. involved in nerve regeneration
                        1. nodes of Ranvier
                          1. gaps between Schwann cells where there's no myelin sheath
                        2. wrapped around many times
                        3. myelin sheath
                          1. made of membranes of Schwann cells
                            1. rich in myelin
                      3. Types
                        1. Myelin sheath
                          1. unmyelinated neurones
                            1. myelinated neurones
                              1. transmit nerve impulses faster
                            2. Classifications
                              1. sensory
                                1. receptor
                                  1. to intermediate or motor neurone
                                  2. one dendron
                                    1. carries to cell body
                                    2. one axon
                                      1. carries away from cell body
                                    3. motor
                                      1. intermediate or sensory
                                        1. to effector
                                          1. glands
                                            1. muscles
                                          2. long axon
                                            1. many short dendrites
                                            2. intermediate
                                              1. transmit between neurones
                                          3. Specialised cells adapted to carry nerve impulses across the body.
                                            Show full summary Hide full summary

                                            Similar

                                            GCSE Biology AQA
                                            isabellabeaumont
                                            GCSE Biology B2 (OCR)
                                            Usman Rauf
                                            Biology Unit 2 - DNA, meiosis, mitosis, cell cycle
                                            DauntlessAlpha
                                            Biological Molecules Definitions
                                            siobhan.quirk
                                            Cell Structure
                                            megan.radcliffe16
                                            GCSE Biology - Homeostasis and Classification Flashcards
                                            Beth Coiley
                                            Exchange surfaces and breathing
                                            megan.radcliffe16
                                            BIOLOGY HL DEFINITIONS IB
                                            Luisa Mandacaru
                                            Key Biology Definitions/Terms
                                            courtneypitt4119
                                            Biology B1.1 - Genes
                                            raffia.khalid99
                                            Biology Unit 1a - GCSE - AQA
                                            RosettaStoneDecoded