Primary afferent fibers teb rau high-threshold noxious stimuli (noxious thermal, mechanical, chemical) hu ua nociceptors. Lawv yog cov Aδ lossis C fibers C fibers C fibers yog ib chav kawm ntawm cov hlab ntsha fiber ntau pom nyob rau hauv cov hlab ntsha ntawm somatic sensory systemLawv yog afferent fibers, xa cov tswv yim tawm tswv yim los ntawm qhov chaw mus rau central paj hlwb. https://en.wikipedia.org › wiki › Group_C_nerve_fiber
Group C paj hlwb - Wikipedia
. Cov fibers no yuav muaj cov paj hlwb tshwj xeeb xws li Meissner lub cev nqaij daim tawv thiab Pacinian corpuscles.
hom receptor yog Pacinian corpuscle?
Pacinian corpuscles yog nrawm nrawm (phasic) receptors uas kuaj pom tag nrho cov kev hloov pauv siab thiab kev co hauv daim tawv nqaij. Txhua qhov deformation hauv lub cev ua rau muaj peev xwm ua tau los ntawm kev qhib siab-sensitive sodium ion channel hauv axon membrane.
Puas yog Pacinian corpuscles neurons?
Meissner lub cev nqaij daim tawv yog hloov kho sai, encapsulated neurons uas teb rau qhov qis zaus vibrations thiab kov zoo; lawv nyob rau hauv daim tawv nqaij glabrous ntawm lub ntsis ntiv tes thiab daim tawv muag. … -Pacinian corpuscles yog nrawm-hloov, sib sib zog nqus receptors uas teb rau kev sib sib zog nqus thiab kev co siab
Puas Pacinian corpuscles kov receptors?
Plaub yam loj ntawm tactile mechanoreceptors suav nrog: Merkel's disks, Meissner's corpuscles, Ruffini endings, thiab Pacinian corpuscles. … -Pacinian corpuscles yog nrawm-hloov, sib sib zog nqus receptors uas teb rau kev sib sib zog nqus thiab siab-zaus vibration.
Peb hom nociceptors yog dab tsi?
Hauv luv luv, muaj peb yam tseem ceeb ntawm nociceptors nyob rau hauv daim tawv nqaij: Aδ mechanosensitive nociceptors, Aδ mechanothermal nociceptors, thiab polymodal nociceptors, tom kawg yog tshwj xeeb nrog C fibers.
