Video: Dab tsi ntawm cov fibers ua rau cov hlab ntsha vagus nqa?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov vagus paj yog qhov ntev tshaj plaws cranial paj hlwb . Nws muaj lub cev muaj zog thiab kev xav fibers thiab, vim tias nws hla lub caj dab thiab thorax mus rau lub plab, muaj qhov faib dav tshaj plaws hauv lub cev. Nws muaj somatic thiab visceral afferent fibers , as well as general and special visceral efferent fibers.
Hais txog qhov no, tus kab mob vagus nqa dab tsi?
Cov vagus paj muab lub cev muaj zog parasympathetic rau tag nrho cov kabmob (tshwj tsis yog cov qog adrenal), los ntawm caj dab mus rau ntu thib ob ntawm txoj hnyuv hla. Cov vuag kuj tswj tau ob peb cov leeg pob txha, suav nrog: cov leeg nqaij Cricothyroid.
Kuj Paub, cov qauv dab tsi ua rau cov hlab ntsha vagus muab? Lub vagus paj hlwb innervates:
- Laryngopharynx - los ntawm cov hlab ntsha hauv lub laryngeal.
- Qhov zoo tshaj ntawm larynx (saum lub suab quav) - ntawm lub paj hlwb sab hauv.
- Lub plawv - ntawm cov ceg ntoo plawv ntawm cov hlab ntsha vagus.
- Kab mob plab hnyuv (txog mus rau splenic flexure) - ntawm lub davhlau ya nyob twg ceg ntawm cov hlab ntsha vagus.
Tsis tas li ntawd, puas vagus paj hlwb muaj sympathetic Fibres?
Cov vagus paj cov haujlwm ua rau lub cev tsis muaj zog, uas suav nrog parasympathetic thiab txaus siab ntu. Cov qab ne lub luag haujlwm rau qee yam kev ua ub no thiab cov ntaub ntawv lub cev muaj zog rau kev txav hauv lub cev.
Dab tsi yog qhov cuam tshuam ntawm cov kab mob parasympathetic nqa los ntawm cov hlab ntshav vagus?
Lawv ua rau lub plawv dhia qeeb. qis dua ib feem ntawm interatrial septum. Qhov xwm txheej hluav taws xob uas pib txhua lub plawv dhia tshwm sim ntawm lub sinoatrial (SA) ntawm.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov hlab ntsha thiab cov hlab ntsha capillaries?
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Vim li cas peb thiaj sau cov ntshav los ntawm cov hlab ntsha thiab tsis yog los ntawm cov hlab ntsha?
Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho