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Nervous system & Special sense, - Coggle Diagram
Nervous system & Special sense
Nervous system
องค์ประกอบของ Nervous tissue
Neuron
Intertitial tissue
Supportive cells
neuroglia
CNS
Astrocytes
Oligodendrocytes
Microglia
Ependymal cells
PNS
Schwann cells
Satellite cells
Function
Provide nutritional and metabolic support for neurons
Insulation (myelin sheath)
Connective tissue
CNS
Meninges (เยื่อหุ้มสมอง)
PNS
Sheaths & Capsule
A typical Neuron (Nerve cell)
Cell body
Nucleus
Vesicular concentric (อยู่ตรงกลาง)
ติดสีเข้มชัดเจน
Cytoplasm
Nissl body
Chromatolysis (เป็นการสลายของ Nissl bodies เมื่อ
neuron ถูกทำลาย)
Inclusion
Intermediate filament
Process
Axon
axon hillock
Dendrite
dendritic spine (gemmules)
Types of Neuron
Bipolar
Bipolar cell of retina
Olfactory cell
Pseudo-unipolar
dorsal root ganglion
Multipolar
Pyramidal cell
Purkinje cell
Types of Nerve fibers
Myelinated nerve fibers
Unmyelinated nerve fibers
Motor fibers
Sensory fibers
Types of synapse
Axodendritic synapse (80-90%)
Axosomatic synapse
Axoaxonic synapse
Nerve ending
Motor nerve ending
Sensory nerve ending
Ganglia
Brain and spinal cord
Cerebral cortex
Cerebellar cortex
Special Senses
Eye ball
Three layers
Outer fibrous layer
Sclera (ตาขาว)
Cornea
Middle vascular layer (Uvea)
Choroid
Ciliary body & process
Iris
Inner nervous layer
Retina
Another component
Conjunctiva
Lens
Eyelid
Ear
Outer ear
Middle ear for hearing
Inner ear/ labyrinth for hearing & equilibrium
Auditory part
Cochlea
Vestibular part
Semicicular duct
Utricle and Saccule
Taste buds
Smell (Olfaction)
superior nasal conchae
upper part of nasal septum