Qhov sib txawv tseem ceeb ntawm vagus thiab phrenic qab haus huv yog cov paj hlwb vagus yog cov hlab ntsha thib kaum cranial, uas yog ib qho tseem ceeb parasympathetic cranial paj hlwb, thaum phrenic hlab ntsha yog cov hlab ntsha ntawm cheeb tsam thoracic thiab tseem ceeb rau kev ua pa.
Vagus paj hlwb yog kaum cranial paj. Nws yog qhov ntev tshaj plaws thiab nyuaj tshaj plaws ntawm cov hlab ntsha cranial. Nws muab cov khoom noj parasympathetic rau tag nrho cov kabmob ntawm lub plab thiab plab. Phrenic hlab ntsha yog lub cev muaj zog thiab lub paj hlwb ntawm lub diaphragm. Ob leeg vagus thiab phrenic qab haus huv yog cov hlab ntsha thoracic. Lawv yog cov paj hlwb sib xyaw. Vagus thiab phrenic qab haus huv muaj ob qho tib si lub cev muaj zog thiab kev xav. Muaj sab xis thiab sab laug vagus thiab phrenic qab haus huv.
Vagus Nerves yog dab tsi?
Vagus hlab ntsha yog lub paj hlwb thib kaum uas nthuav tawm ntawm lub taub hau, caj dab, lub hauv siab, thiab lub plab. Nws yog qhov ntev tshaj plaws ntawm 12 lub paj hlwb. Nws tshwm sim hauv medulla oblongata. Structurally, vagus qab haus huv yog cov paj hlwb sib xyaw. Lawv muaj somatic thiab visceral afferent fibers, nrog rau cov dav dav thiab tshwj xeeb visceral efferent fibers.
Daim duab 01: Vagus Nerve
Vagus qab haus huv kho esophagal nqos, plab hnyuv thiab noj mov txaus. Yog li ntawd, cov hlab ntsha vagus cuam tshuam nrog parasympathetic tswj lub plawv, ntsws, thiab digestive ib ntsuj av. Vagus paj hlwb yog lub luag haujlwm rau lub plawv dhia, plab hnyuv peristalsis, tawm hws, thiab ob peb leeg nqaij hauv qhov ncauj, nrog rau kev hais lus. Muaj sab xis thiab sab laug vagus qab haus huv.
Dab tsi yog Phrenic Nerves?
Phrenic hlab ntsha yog paj hlwb ntawm cheeb tsam thorax. Nws yog cov hlab ntsha uas muab lub cev muaj zog innervation rau lub diaphragm. Lub diaphragm yog cov nqaij leeg tseem ceeb ntawm kev ua pa. Yog li ntawd, cov paj hlwb phrenic plays lub luag haujlwm tseem ceeb hauv kev ua pa.
Daim duab 02: Phrenic Nerve
Phrenic hlab ntsha yog ob sab sib xyaw paj hlwb, uas yog lub cev muaj zog thiab lub paj hlwb. Nws tshwm sim los ntawm lub ncauj tsev menyuam txha caj qaum C3, C4 thiab C5 hauv caj dab. Nws nqis los ntawm lub thorax mus rau diaphragm. Muaj ob lub phrenic qab haus huv: sab xis phrenic qab haus huv thiab sab laug phrenic qab haus huv. Ob leeg phrenic qab haus huv innervate inferior nto ntawm lub diaphragm. Phrenic qab haus huv muaj efferent thiab afferent fibers.
Dab tsi zoo sib xws ntawm Vagus thiab Phrenic Nerves?
- Vagus thiab phrenic qab haus huv pib hauv caj dab thiab khiav mus rau hauv mediastinum thiab dhau los ntawm diaphragm.
- Tseem muaj sab xis thiab sab laug phrenic qab haus huv thiab sab xis thiab sab laug vagus qab haus huv.
- Ob leeg vagus thiab phrenic qab haus huv yog cov paj hlwb sib xyaw.
Qhov txawv ntawm Vagus thiab Phrenic Nerves yog dab tsi?
Vagus paj hlwb, uas yog kaum lub paj hlwb, yog ib qho tseem ceeb parasympathetic cranial paj hlwb thaum lub paj hlwb phrenic yog cov paj hlwb sib xyaw uas muab cov innervation rau lub diaphragm. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm vagus thiab phrenic qab haus huv. Tsis tas li ntawd, vagus qab haus huv los ntawm medulla oblongata thaum phrenic qab haus huv los ntawm lub ncauj tsev menyuam plexus thiab tau txais innervation los ntawm C3, C4, thiab C5 paj ntaub hauv paus.
Ntxiv mus, lwm qhov sib txawv ntawm vagus thiab phrenic qab haus huv yog lawv txoj haujlwm. Vagus qab haus huv kho qhov parasympathetic tswj lub plawv, ntsws, thiab plab zom mov, thaum phrenic hlab ntsha muab lub cev muaj zog rau lub diaphragm thiab hnov fibers rau fibrous pericardium, mediastinal pleura, thiab diaphragmatic peritoneum.
Hauv qab infographic qhia txog qhov sib txawv ntawm vagus thiab phrenic qab haus huv hauv daim ntawv tabular.
Summary – Vagus vs Phrenic Nerves
Vagus qab haus huv thiab phrenic qab haus huv yog cov hlab ntsha thoracic. Lawv ob leeg khiav ob sab ntawm caj dab thiab thorax. Vagus paj yog ib qho tseem ceeb parasympathetic cranial paj. Phrenic paj hlwb yog lub paj hlwb uas muab lub cev muaj zog innervations rau lub diaphragm thiab kev hnov lus innervation mus rau hauv nruab nrab intrathoracic thiab peritoneal nto ntawm lub diaphragm. Ob leeg vagus thiab phrenic qab haus huv yog cov hlab ntsha sib xyaw uas muaj ob qho tib si lub cev muaj zog thiab kev xav. Yog li, qhov no qhia txog qhov sib txawv ntawm vagus thiab phrenic qab haus huv.
