Pivot pob qij txha, tseem hu ua cov pob qij txha, yog ib hom kev sib koom ua ke synovial Joint A synovial sib koom, tseem hu ua diarthrosis, koom cov pob txha lossis pob txha mos nrog cov pob txha pob txha uas txuas ntxiv nrog rau. periosteum ntawm cov pob txha sib koom, tsim cov ciam teb sab nraud ntawm cov kab noj hniav synovial, thiab nyob ib puag ncig cov pob txha 'Articulating nto. https://en.wikipedia.org › wiki › Synovial_joint
Synovial sib koom - Wikipedia
uas tso cai axial rotation. Cov pob txha txav rotates nyob rau hauv ib lub nplhaib tsim los ntawm lub concave nto ntawm ob pob txha thiab ib tug ligament nyob ib sab.
pivot pivot yog dab tsi?
Pivot Joint.
Pivot Joint, tseem hu ua rotary joint lossis trochoid joint, yog tus yam ntxwv ntawm ib pob txha uas tuaj yeem tig mus rau hauv lub nplhaib tsim los ntawm cov pob txha thib ob. Piv txwv yog cov pob qij txha ntawm koj cov pob txha ulna thiab lub vojvoog uas tig koj lub hauv pliaj, thiab kev sib koom ua ke ntawm thawj thiab thib ob vertebrae hauv koj lub caj dab
Yuav ua li cas 2 pivot pivot pob qij txha?
Ob qho piv txwv ntawm cov pob qij txha yog cov pob qij txha hauv caj dab, uas tso cai rau lub taub hau tig thiab cov pob qij txha ntawm lub vojvoog thiab ulna pab tig lub forearm.
Cov pob qij txha hauv lub cev nyob qhov twg?
Kev piav qhia. Pivot pob qij txha tuav lub ob pob txha ntawm forearm ua keQhov ntawd yog, ib qho pivot sib koom, nyob ze ntawm lub luj tshib, koom nrog cov pob txha ntawm lub forearm (hu ua ulna thiab lub vojvoog) rau ib leeg. Ob lub pob txha no kuj tau koom ua ke nyob ze ntawm dab teg los ntawm lwm qhov pivot sib koom.
Dab tsi yog qhov pivot sib koom ua ke rau dummies?
Pivot sib koom, tseem hu ua rotary joint, lossis trochoid joint, hauv vertebrate anatomy, ib qho kev sib koom ua ke ywj pheej (diarthrosis) uas tso cai rau kev txav txav ib ncig ntawm ib qho axisCov pob txha txav rotates nyob rau hauv ib lub nplhaib uas yog tsim los ntawm ib tug thib ob pob txha thiab ligament nyob ib sab.
