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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. 20131023. - PowerPoint PPT Presentation
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Lab5 Nervous tissueskin
1. Myelinated nerve fiber (No.12)2. Sympathetic ganglia(No.13)3. Finger skin (No.14)4. Head skin (No.5)5. Quiz1: 11:20-11:40 AM
20131023
Jun Zhou （周俊）School of Medicine, Zhejiang University
Nerve tissue: neuron+neurogliaNeuron: gray matter (CNS), ganglia (PNS)
Anterior horn
Posterior horn
Motor neuron: HE×400
Multipolar neuron
Axon
Axon hillock
Dendrite
Nissl body
Motor neuron: HE ×400
Axon hillock
Myelinated nerve fiber (No.12): HE ×40
Epineurium
Perineurium
endoneurium
Myelinated nerve fiber: HE ×400
Axon
Myelin
neurolemma
Schwann cell
Endoneurium
perineurium
Myelinated nerve fiber: HE ×400
Node of Ranvier
Axon
Myelin
neurolemma
Sympathetic ganglia (No.13): HE ×40
Neurons
Nerve fiber
Ganglia: HE × 100
neurons
Nerve fibers
Sympathetic ganglia: HE × 400
Neurons
Satellite cells
Ganglia: unmyelinated nerve fiber HE × 400
Ganglia: unmyelinated nerve fiber HE × 400
Neuroglial cell : × 400 fibrous astrocyte and protoplasmic astrocyte
Neuroglial cell × 400 Oligodendrocyte
Neuroglial cell × 400 Microglia
Lamellar corpuscle × 100 Pacinian corpuscle
Tactile corpuscle × 100 Meissner’s corpuscle
Tactile corpuscle × 400
Motor end plate × 40 Neuromuscular junction
Motor end plate × 400
Finger skin
epidermis
Papillary layer
Reticular layer dermis
Finger skin (No.14)
EpidermisThe stratum basal
The stratum spinosum
The stratum granulosum
The stratum lucidum
The stratum corneum
DermisPapillary layer
Reticular layer
hypodermis
Meisser’s corpuscle, touch receptor
Sweat gland in the reticular layer
Secretory portionSimple pyramidal epi.
Myoepi.cell
Basement membrane
Ducts
Stratified cuboidal Epi.
Head skin (No.5)
Epidermis
Dermis
hairs
Sebaceous glands
Arrector pili muscles
Sweat glands
Head skin
Hair
Hair trunk
Hair root
Hair follicle
Sebaceous glands
Arrector pili muscles
Hair bulb
Dermal papilla
Root sheath
Dermal sheath (CT sheath)
Sebaceous glands
Ducts end at upper part of hair follicle
Filled with lipid droplets
The end!
