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Nerve reflex of panda---surprise

Nerve reflex of panda---surprise. Your nerve reflex---laugh. 7 Nervous Tissue. Objective: Grasp Neuronal structures under LM Grasp Myelinated peripheral nerve Understand: tactile corpuscles lamellated corpuscles Grasp Nissl body Synapse. REVIEW( 复习 ).

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Nerve reflex of panda---surprise

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  1. Nerve reflex of panda---surprise NO PAINS NO GAINS 1

  2. Your nerve reflex---laugh NO PAINS NO GAINS 2

  3. 7 Nervous Tissue

  4. Objective: GraspNeuronal structures under LM Grasp Myelinated peripheral nerve Understand: tactile corpuscles lamellated corpuscles Grasp Nissl body Synapse NO PAINS NO GAINS 4

  5. REVIEW(复习) NO PAINS NO GAINS 5

  6. Neuron神经元 perikaryon 胞体 Axon 轴突 Process 突起 Neuroglia 神经胶质细胞 Dendrite 树突 nervous tissue NO PAINS NO GAINS 6

  7. 尼氏体(Nissl body)： 1 LM:Basophilic particles, 2 compositoin：RER + free ribosome 3 function： activePr synthesis : enzyme NO PAINS NO GAINS 7

  8. 化学性突触 ★ 1 definition： Specialized for the release and reception of neurotransmitters. 2 compositon：under EM ： a. Presynaptic element： synaptic vesicles with（ Presynaptic membrane）neurotransmitters b. Synaptic cleft： c. Postsynaptic element：receptors。 （ Postsynaptic membrane ） 3 function： transmitting impulses in one direction NO PAINS NO GAINS 8

  9. slides 1 Multipolar motor Neuron (spinal cord), H&E. 2 Myelinated peripheral nerve fiber sciatic nerve (HE) 3 Tactile corpuscle and lamellated corpuscle skin (HE) 4 Spinal ganglion HE NO PAINS NO GAINS 9

  10. What we should find 1 Spinal cord Multipolar neurons ( Perikaryon, nucleus, Nissl body) 2 sciatic nerve axon, myelin sheath, node of Ranvier neurolemma and so on 3 Skin:tactile corpuscle lamellated corpuscle 4 spinal ganglion Perikaryon, satellite cells NO PAINS NO GAINS 10

  11. How to find NO PAINS NO GAINS 11

  12. slide 1 脊髓（ spinal cord) Cross section ：flaten round 灰质（gray matter）: central，butterfly 白质（white matter）: peripheral NO PAINS NO GAINS 12

  13. cross section longitudinal section Slide 2 Myelinated peripheral nerve周围神经系统有髓神经纤维 NO PAINS NO GAINS 13

  14. NO PAINS NO GAINS 14

  15. 中央管（Central Canal） （ependimal cells）：simple cuboidal or columnar NO PAINS NO GAINS 15

  16. 白质（White Matter）different sections nuclei of neuroglia NO PAINS NO GAINS 16

  17. 灰质（Gray Matter） The dorsal horn (DH) 背角（后角） The ventral horn (VH) 腹侧角（前角） The central canal (CC) 中央管 NO PAINS NO GAINS 17

  18. The ventral horn (VH) 腹侧角（前角） neuron：perikaryon：huge，irregular cytoplasm：Nissl bodies nucleus：huge ，round，pale staining，clear nuclear membrane and nucleolus NO PAINS NO GAINS 18

  19. nucleus axon hillock 轴丘 Soma胞体 nucleolus Nissl bodies Dendrite 树突 NO PAINS NO GAINS 19

  20. Gray Mattermultipolar neuron NO PAINS NO GAINS 20

  21. NO PAINS NO GAINS 21

  22. cross section longitudinal section Slide 2 Myelinated peripheral nerve, H&E. 周围神经系统有髓神经纤维 NO PAINS NO GAINS 22

  23. 1) Cross section （lower power） epineurium perineurium NO PAINS NO GAINS 23

  24. Myelin sheath 1) Cross section （high power） Endoneurium Axon NO PAINS NO GAINS 24

  25. Schwann Cells The Nodes of Ranvier axon myelin sheath fibroblast nuclei 2) Longitudinal section（lower power） NO PAINS NO GAINS 25

  26. 郎飞结（Node of Ranvier） NO PAINS NO GAINS 26

  27. epidermis dermis hypodermis Slide 3 :Skin of the finger H&E NO PAINS NO GAINS 27

  28. NO PAINS NO GAINS 28

  29. (1) Tactile corpuscles • 1.Where? • In the dermal papillae • 2.Shape? • Oval • Perpendicular to the surface • 3.Component? • Stacked flat cells • Capsule • Never ending NO PAINS NO GAINS 29

  30. NO PAINS NO GAINS 30

  31. (2) Lamellated corpuscles • Where? • hypodermis • Shape? • Large / Oval • Sliced onions • Component? • Concentric layer of CT • Central core • Never ending NO PAINS NO GAINS 31

  32. NO PAINS NO GAINS 32

  33. 3) nerve bundles NO PAINS NO GAINS 33

  34. ganglion cells Slide 4 Spinal ganglion H&E, 4. Low power: NO PAINS NO GAINS 34

  35. Spinal ganglion H&E High power: ganglion cells satellite cells NO PAINS NO GAINS 35

  36. Slide 4 Motor end plate(AgNO3) NO PAINS NO GAINS 36

  37. Motor end plate NO PAINS NO GAINS 37

  38. T e s t NO PAINS NO GAINS 38

  39. Which structure (pointer)? NO PAINS NO GAINS 39

  40. Which tissue ? Which structure (pointer)? NO PAINS NO GAINS 40

  41. Which structure (pointer)? NO PAINS NO GAINS 41

  42. Which structure (pointer)? NO PAINS NO GAINS 42

  43. Which structure (pointer)? NO PAINS NO GAINS 43

  44. Which structure (pointer)? NO PAINS NO GAINS 44

  45. Which structure (pointer)? NO PAINS NO GAINS 45

  46. Which structure (pointer)? NO PAINS NO GAINS 46

  47. Which structure (pointer)? NO PAINS NO GAINS 47

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