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Presentation on theme: "world.com/practical/nervous/nervo us.htm."— Presentation transcript:

1 http://www.histology- world.com/practical/nervous/nervo us.htm

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5 Cerebral Cortex-Histology How many cell layers does the cerebral cortex have? Can you name them? – 1.) – 2.) – 3.) – 4.) – 5.) – 6.)

6 Outer Pyamidal Layer (III) Inner Pyamidal Layer (V) External Granular Layer (II) Plexiform (Molecular) Layer (I) Internal Granular Layer ( IV ) Polymorph Layer (VI) Capsula Extrema Capsula Externa Gyrus sulcus claustum

7 Cerebral cortex white matter

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9 Cerebral cortex grey matter

10 Cerebral Cortex pyramidal neurons

11 Copyright © Floris G. Wouterlood, Ph.D. What type of neurons are these?

12 Pyamidal neurons Glia cells nonpyamidal neurons Layer V (Inner Pyramidal layer) Insular Cortex

13 Cerebellum

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15 Cerebellum molecular layer

16 Cerebellum- granule cell layer

17 Cerebellum- Purkinje cell

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19 Cerebellum- White matter

20 Cerebellum- Grey matter

21 Choroid Plexus?

22 Hippocampus- dentate gyrus

23 Hippocampus- CA1

24 Pineal body

25 pineal gland The pineal gland is an endocrine organ formed by cells with a neurosecretory function. The pineal gland is connected to the brain by a stalk, but there are no direct nerve connections of the pineal gland with the brain. Instead, postganglionic sympathetic nerve fibers derived from the superior cervical ganglia supply the pineal gland. – Preganglionic fibers to the superior cervical ganglia derive from the lateral column of the spinal cord. The function of the pineal gland is regulated by sympathetic nerves.

26 pineal gland

27 Pineal Gland

28 Pituitary gland In this low power image of the pituitary gland, can you identify the paler staining posterior pituitary, and the darker staining anterior pituitary. The posterior pituitary is connected to the hypothalamus by the pituitary stalk

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32 1.) 2.) 3.) 4.) 5.) 6.)

33 Spinal Cord: Anterior Horn

34 Spinal Cord: Dorsal root ganglion (drg) vh= ventral horn; dh=dorsal horn Central canal

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36 Peripheral nerve

37 Epineurium

38 Endoneurium

39 Perineurium

40 Schwann cell nucleus

41 Axon

42 Node of Ranvier

43 Retina: Rods

44 Retina: Cones

45 Retina: Ganglion cells

46 Retina: Choroid

47 Taste Buds: Fungiform papilla

48 neuroepithelial cells

49 basal cells

50 Cochlea: Organ of Corti

51 Cochlea: Hair cells of the Organ of Corti

52 Crista Ampullaris

53 Cupula

54 Olfactory epithelium

55 Pacinian Corpuscle

56 Parasympathetic ganglia

57 Auerbach's Plexus


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