Video: Qhov Spinothalamic tract synapse nyob qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ib sab spinothalamic kab mob muaj ntau cov fibers uas synapse nyob rau hauv lub ventral posterolateral nucleus ntawm lub thalamus. Kev mob hnyav, nrog rau qhov kub thiab txias yuav pib qhov kev xav ntawm kev xav los ntawm kev sib tham ntawm no.
Ntawm no, qhov twg yog qhov chaw Spinothalamic?
Cov spinothalamic kab mob (ib feem ntawm lub anterolateral system los yog ventrolateral system) yog ib qho kev nkag siab mus rau thalamus. Los ntawm lub ventral posterolateral nucleus nyob rau hauv lub thalamus, sensory cov ntaub ntawv yog relayed upwards mus rau lub somatosensory cortex ntawm lub postcentral gyrus.
Kuj Paub, txoj kev nce qib twg ua rau qhov kev xav ntawm qhov mob thiab qhov kub thiab txias? Cov fibers no, ua ke nrog axons los ntawm kev txiav txim thib ob lamina kuv neurons, tsim cov spinothalamic kab mob , qhov loj ascending txoj kev rau cov ntaub ntawv hais txog mob thiab kub.
Tsis tas li ntawd, qhov twg Spinothalamic kab mob tshwm sim?
Cov spinothalamic kab mob tshwm sim Feem ntau los ntawm dorsal horn hlwb concentrated nyob rau hauv laminae I, IV, V, VII, thiab X, i.e., nyob rau hauv lub marginal cheeb tsam, nucleus proprius, medial thiab nruab nrab nruab nrab grey. Feem coob ntawm cov spinothalamic cov hlwb yog concentrated nyob rau hauv lub ncauj tsev menyuam thiab lumbosacral o.
Yuav ua li cas yog tias Spinothalamic ib puag ncig puas lawm?
Kev puas tsuaj mus rau spinothalamic kab mob ntawm qhov mob thiab qhov kub thiab txias feem ntau ua rau poob mus rau sab nraud ntawm lub cev. Vim hais tias ntawm cov ceg uas nws kim heev ntawm ascending crude kov fibers, hom kov no tsis zoo li yuav raug tshem tawm los ntawm kev raug mob rau ib qho tshwj xeeb. txoj kev nyob rau hauv tus txha caj qaum.
Pom zoo:
Lub qhov hluav taws xob nyob qhov twg nyob qhov twg?
Lub plab feem ntau yog nyob rau sab laug sab saud sab hauv qab lub diaphragm thiab txuas nrog zoo dua rau txoj hlab pas thiab nyob deb rau duodenum
Lub lateral Spinothalamic tract hla qhov twg?
Cov neurons thib ob no hu ua tract cells. Cov axons ntawm cov kab mob sib kis hla hla (txiav txim siab) mus rau lwm sab ntawm tus txha nqaj qaum hla ntawm lub ntsej muag dawb ua ntej, thiab mus rau anterolateral ces kaum ntawm tus txha nraub qaum (yog li cov kab mob spinothalamic yog ib feem ntawm cov txheej txheem anterolateral)
Qhov twg qhov ventral spinocerebellar tract xaus nyob rau hauv lub hlwb?
Rostral spinocerebellar tract Nws xaus ob sab nyob rau hauv lub anterior lobe ntawm lub cerebellum (qis cerebellar peduncle) tom qab mus ncig ipsilaterally los ntawm nws keeb kwm nyob rau hauv lub ncauj tsev menyuam feem ntawm tus txha caj qaum
Qhov synapse nyob hauv neuron nyob qhov twg?
Lub dav hlau axon nyob ib sab rau dendrite ntawm postsynaptic -txais -cell. Qhov chaw ntawm kev sib raug zoo ntawm axon thiab dendrite yog lub synapse. Ib qho axon tuaj yeem muaj ntau ceg ntoo, tso cai rau nws ua cov synapses ntawm ntau lub hlwb postsynaptic
Qhov tsawg dua splanchnic paj hlwb synapse nyob qhov twg?
Cov paj hlwb tsawg dua splanchnic taug kev inferiorly, lateral mus rau lub paj hlwb ntau dua. Nws cov fibers synapse nrog lawv cov postganglionic counterparts nyob rau hauv lub superior mesenteric ganglia, los yog nyob rau hauv lub aorticorenal ganglion