1. Lab5 Nervous tissue skin
Myelinated nerve fiber (No.12)
Sympathetic ganglia(No.13)
Finger skin (No.14)
Head skin (No.5)
5. Quiz1: 11:20-11:40 AM
Jun Zhou （周俊）
School of Medicine, Zhejiang University

2. Nerve tissue: neuron+neuroglia Neuron: gray matter (CNS), ganglia (PNS)
Posterior horn
Anterior horn

3. Motor neuron: HE×400 Multipolar neuron Axon Axon hillock Dendrite
Nissl body
Motor neuron: HE×400

4. Axon hillock
Motor neuron: HE ×400

5. Myelinated nerve fiber (No.12): HE ×40
Epineurium
Perineurium
endoneurium
Myelinated nerve fiber (No.12): HE ×40

6. Myelinated nerve fiber: HE ×400
Axon
Myelin
neurolemma
Schwann cell
Endoneurium
perineurium
Myelinated nerve fiber: HE ×400

7. Myelinated nerve fiber: HE ×400
Node of Ranvier
Axon
Myelin
neurolemma
Myelinated nerve fiber: HE ×400

8. Sympathetic ganglia (No.13): HE ×40
Neurons
Nerve fiber
Sympathetic ganglia (No.13): HE ×40

9. Nerve fibers
neurons
Ganglia: HE × 100

10. Sympathetic ganglia: HE × 400
Neurons
Satellite cells
Sympathetic ganglia: HE × 400

11. Ganglia: unmyelinated nerve fiber HE × 400

12. Ganglia: unmyelinated nerve fiber HE × 400

13. Neuroglial cell : × 400 fibrous astrocyte and protoplasmic astrocyte

14. Neuroglial cell × 400 Oligodendrocyte

15. Neuroglial cell × 400 Microglia

16. Lamellar corpuscle × 100 Pacinian corpuscle
Pacinian corpuscles are deep pressure receptors for mechanical and vibratory pressure
Lamellar corpuscle × Pacinian corpuscle

17. Tactile corpuscle × 100 Meissner’s corpuscle
Messiner’s corpuscles are localized within dermal papillae and serve as touch receptors
Tactile corpuscle × 100 Meissner’s corpuscle

18. Tactile corpuscle × 400

19. Motor end plate × 40 Neuromuscular junction

20. Motor end plate × 400

21. epidermis
Papillary layer
Reticular layer
dermis
Finger skin

22. Epidermis Dermis hypodermis Finger skin (No.14) The stratum basal
The stratum spinosum
The stratum granulosum
The stratum lucidum
The stratum corneum
Dermis
Papillary layer
Reticular layer
hypodermis
Finger skin (No.14)

23. Meisser’s corpuscle, touch receptor

24. Sweat gland in the reticular layer
Secretory portion
Simple pyramidal epi.
Myoepi.cell
Basement membrane
Ducts
Stratified cuboidal Epi.
Sweat gland in the reticular layer

25. Epidermis Dermis hairs Head skin (No.5) Sebaceous glands
Arrector pili muscles
Sweat glands
Head skin (No.5)

26. Head skin Hair Hair trunk Hair root Hair follicle Sebaceous glands
Arrector pili muscles
Head skin

27. Hair bulb
Dermal papilla
Root sheath
Dermal sheath (CT sheath)

28. Sebaceous glands
Ducts end at upper part of hair follicle
Filled with lipid droplets

29. The end!