2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
postganglionic fiber ntau: Hauv lub paj hlwb autonomic, cov no yog cov fibers uas khiav los ntawm ganglion mus rau lub cev muaj zog. cholinergic: Hais txog, qhib los ntawm, tsim, lossis muaj kev ua haujlwm zoo ib yam li acetylcholine.
Postganglionic sympathetic fibers nyob qhov twg?
Qhov chaw ntawm lub peripheral parasympathetic ganglia nyob rau hauv lub visceral organ nws tus kheej yog heev txawv los ntawm cov kev npaj ntawm lub sympathetic ganglia, rau lub cell lub cev ntawm lub sympathetic postganglionic neurons yeej ib txwm nyob nyob rau hauv lub ganglia ntawm lub sympathetic chain or in various other discrete ganglia in the…
Lub cev postganglionic cell nyob qhov twg?
Lub cev ntawm tes ntawm postganglionic neurons yog nyob rau hauv autonomic ganglia nyob peripherally. Axon davhlau ya nyob twg ntawm preganglionic neurons synapse ntawm dendrites thiab cell lub cev ntawm postganglionic neurons.
Qhov txawv ntawm preganglionic thiab postganglionic fibers yog dab tsi?
Preganglionic neurons yog cov paj hlwb ntawm lub paj hlwb uas txuas lub hauv nruab nrab paj hlwb mus rau ganglia. Postganglionic neurons yog ib txheej ntawm cov paj hlwb uas muaj nyob rau hauv lub cev lub paj hlwb uas txuas cov ganglion mus rau lub cev effector.
preganglionic fibers nyob qhov twg?
Cov preganglionic neurons nyob hauv cov pab pawg ntawm tes (tseem hu ua nuclei) hauv lub hlwb lossis hauvlub horns lateral ntawm tus txha caj qaum ntawm sacral theem.
Pom zoo:
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov tsis txaus ntseeg nyob qhov twg?
Yuav muaj ob lub cev tsis zoo nyob rau hauv lub midbrain. Lawv yog symmetrically positioned, ib tug nyob rau ntawm ob sab ntawm lub midline ntawm lub hlwb, thiab lawv tsim ob lub pob nyob rau hauv lub posterior nto ntawm lub paj hlwb nyob rau hauv qab ntawm lub superior colliculi.
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
Cov fibers thiab sclereids nyob qhov twg hauv cov nroj tsuag?
Cov fibers no muaj nyob hauv lub cortex, thiab xylem thiab phloem ntawm cov nroj tsuag. Fibers muab cov neeg kho tshuab kev txhawb nqa. Hom sclereids yog Macro, osteo, Astro, Brachy sclereids. fiber ntau pom nyob rau hauv ib tsob nroj nyob qhov twg?
Purkinje fibers pom nyob qhov twg?
Cov purkinje fibers muaj nyob hauv the sub-endocardium . Lawv loj dua cov leeg mob plawv, tab sis muaj tsawg dua myofibrils myofibrils A myofibril (tseem hu ua cov leeg nqaij fibril lossis sarcostyle) yog ib qho yooj yim qws zoo li lub cev ntawm cov leeg nqaij.
