He aha ka ka'emi'aʻaʻa

Ko mākou hopohopo'aʻaʻa (NT) ua manaoia e ia i ka mall hehee ai o ka'emi'ōnaehana, ka hoʻomakaʻana mai o ka lolo, a pau nā aʻalolo a hāʻule pahū wale. Inā ka 'ole o ke aʻalolo'aʻaʻa mākou noonoo, ka mea, i ke kaulana i ka mea he o nā aʻalolo aeee kapa neurons pili i mea kalaima aeee (neiroglii), a me na olona, a me ka hāʻule pahū wale ihola i loko o laila i nā ipu o ke koko a me ka connective'aʻaʻa.

Loli Hawaiʻi mai ka ectoderm, NTʻano a ka Central ko mākou hopohopo nenoaiu. Ua keena e ohi i loko o nā pūʻulu, pela, he mea ka oho mea, e ohi i ka olona, i loko o pua, ho okumu i ke keʻokeʻo paa.

Ko mākou hopohopo'aʻaʻa ua wehewehe aku ma ka conduction a me ka irritability. No laila, e iho i loko o ka lāʻau ikiʻai, a e e hana ai i ka pili nā loko, nā'aʻaʻa a me nāʻiʻo komo i ka stimulation keena. Keena HT kaʻina a me ka hale kūʻai 'ike, a ua i loaʻa nā mea mai ka iaiyoe ka wā pono.

A neuron ninoieo o ka nucleus a me kona puni cytoplasm (perikaryon), ma ka mitochondria, ribosomes, golgi eiiieaen, etc. Nissl waiwai. Hele mai ka mea hoi e pana aku, a i na poe e mau? Ueo.

1.Dendridy - ma luna o ia mau mea i ka momentum ua hoololiia a hiki i ka halepaahao kino. Ka mea, i ka lōʻihi o 0.2 microns.

2. neurite (axon) - ka lāʻau ikiʻai ma luna o laila ua hoololiia mai ka halepaahao kino. Ua welau a me nā lālā ho okumu i pili 'o Randy me nā neurons a hui, nā'aʻaʻa.

It E e hoʻomaopopo i ke aʻalolo aeee ke alakai impulses pololei i loko o kekahi ao ao.

Nā aʻalolo'aʻaʻa iʻekoluʻano o nā aʻalolo aeee:

1.Afferentnye - paka lāʻau ikiʻai wale hanauna.

2.Effektornye - induce'aʻaʻa mana e lawe hana. Mau nā Hawaii neurons a me neurosecretory aeee ( 'ole i loko o ka wa e noho kaʻina).

3. Associative - palapala pili 'o Randy ma waena o nā aʻalolo keena.

Nā aʻalolo olona, ho i keʻano o ka hanaʻana neurons hoʻopuni lemmotsitami. Ka mea, e unmyelinated a me ka myelinated. Ke kaumaha ma muli o ko lākou 'ole, ka mea, e komo pū i loko o ka' ole o kekahi hapa o ka'emi ko kahua.

Nā aʻalolo olona, 'ōlelo kūikawā manaʻo, kapaʻia nā aʻalolo a hāʻule pahū wale me kā lākou pili Via puluniu fabrics me nā kumu mua. I ka pauʻana o nāʻano: affectors a me synapses. Ke excitation mua ua lawe mai ma luna o ka puluniu lole, ka lua, ma ka mea ku ole, me ka puluniu ma luna o ka lole.

Nō hoʻi,ʻo ko mākou hopohopo'aʻaʻa i glia, i mea, he pae o aeee i i loaʻa ma waena o neurons. Mau keena hana oihana e like me aiiay, secretory, ana, a me ka trophic kākoʻo. Ka mea, o ka pae'āina i lawe mai i ka excitation o na olona, i kā lākou e noho a me ka degeneration.

Ke'ī mai, e noonoo pono i ka hana o ka'emi'aʻaʻa, nō ka mea kēia:? Iecaianoaaiiuo a me conduction o ka pou no lepa, palapala moʻopane a me ka pūnaewele ma ka hoomanao ana i kekahi 'ike, komo i loko o ke kahua o ka hana, a me ka manaʻo Emotions.

Penei, HT mea he lahui hana kūikawā ano o ka lole, oia hoi o aeee, olona, a hāʻule pahū wale a me ka glia. Ke keena kamaʻilioʻana mai e ike i mea ukiuki loa pīhoihoi, hoʻomakaʻia kekahi lāʻau ikiʻai wale, a laila, ke hoʻouna i ia. Manawa a hiki i keia'aʻaʻa ua komo i loko o ka hoʻohui ', mea hoʻopili, ka hoʻololiʻana o nā mea a pau nā loko, nenoai a me nā'aʻaʻa o ke kanaka kino.

Ia e ke hoʻomaopopo, i ka wa a na ko mākou hopohopo'aʻaʻa i ka maʻi, e ae mai oe i na kumu mua i i komo i loko o kona haku mele 'ana. Ma keia hihia, aole e e pathological keʻano o ka hanaʻana, e laʻa me, li nui,ʻeho 'ole' ē aʻe mā i mea e loli i ke ko mākou hopohopo nenoaiu. Loli ole poho o ka waiwai i loko o ka NT i compensated ma ka ulu o ka connective'aʻaʻa a me ka hooulu ana o cysts.

It E e kaulana i ka haku o ka'emi'ōnaehana like me ka a pau o nā aʻalolo'aʻaʻa, a ma a i ka hana a pau keʻano o ka hanaʻana i loko o ke kanaka kino.