![Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab? Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab?](https://i.answers-medical.com/preview/medical-health/14040670-which-of-the-following-is-approximately-the-size-of-a-human-heart-j.webp)
Video: Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab?
![Video: Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab? Video: Qhov twg hauv qab no yog kwv yees li qhov loj ntawm tib neeg lub siab?](https://i.ytimg.com/vi/D0OAVDxqeNY/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Tib neeg lub siab lub cev Hauv tib neeg , cov plawv yog kwv yees qhov loj ntawm lub nrig loj thiab hnyav nruab nrab ntawm 10 txog 12 ooj (280 txog 340 grams) hauv cov txiv neej thiab 8 txog 10 ooj (230 txog 280 grams) hauv poj niam, raws li Henry Grey's "Anatomy of the Tib neeg Lub cev."
Ib yam nkaus, puas yog tib neeg lub siab lub ntsws tib yam?
Zoo kawg Lub plawv Qhov tseeb. Yog tias koj yog menyuam yaus, koj plawv yog hais txog cov tib qhov loj raws li koj lub nrig, thiab yog tias koj yog ib tug neeg laus, nws yog hais txog tus loj tib yam raws li ob lub nrig. Koj plawv ntaus txog 100, 000 zaug hauv ib hnub thiab kwv yees li 35 lab zaug hauv ib xyoos. Thaum nruab nrab lub neej, cov tib neeg lub siab yuav yeej ntau dua 2.5 billion zaug.
Qhov thib ob, lub plawv nyob qhov twg hauv tib neeg lub cev? Cov plawv yog cov leeg cev txog qhov loj ntawm lub nrig, nyob tom qab thiab me ntsis sab laug ntawm lub mis. Cov plawv tso ntshav los hla cov hlab ntsha thiab cov hlab ntshav hu ua cov hlab plawv.
Xav txog qhov no, lub cev lub plawv yog dab tsi?
Cov plawv yog ib lub cev nqaij daim tawv li qhov loj ntawm lub nrig kaw. Nws zaum hauv siab, me ntsis mus rau sab laug ntawm qhov chaw. Raws li cov plawv kev cog lus, nws tso ntshav thoob plaws lub cev. Nws nqa cov ntshav deoxygenated mus rau lub ntsws uas nws thauj nrog cov pa oxygen thiab tshem tawm cov pa roj carbon dioxide, cov khoom pov tseg ntawm cov metabolism.
Tib neeg lub siab zoo li cas?
Sab hauv, tus plawv yog plaub-chambered, hollow lub cev. Sab xis thiab sab laug ntawm lub plawv tau muab faib ua ob chav sab saum toj hu ua atria, uas tau txais cov ntshav los ntawm cov hlab ntsha, thiab ob chav hauv qab hu ua ventricles, uas tso ntshav rau hauv cov hlab ntsha.
Pom zoo:
Dab tsi yog kev tshawb fawb kws tshawb fawb txog keeb kwm keeb kwm los kwv yees lub sijhawm tuag piav qhia vim li cas kev kwv yees tsis tas yuav ncaj?
![Dab tsi yog kev tshawb fawb kws tshawb fawb txog keeb kwm keeb kwm los kwv yees lub sijhawm tuag piav qhia vim li cas kev kwv yees tsis tas yuav ncaj? Dab tsi yog kev tshawb fawb kws tshawb fawb txog keeb kwm keeb kwm los kwv yees lub sijhawm tuag piav qhia vim li cas kev kwv yees tsis tas yuav ncaj?](https://i.answers-medical.com/preview/medical-health/13848688-what-does-a-forensic-entomologist-study-to-estimate-time-of-death-explain-why-such-estimates-are-not-always-straightforward-j.webp)
Ib tus kws tshawb fawb kws tshawb fawb txog keeb kwm tshawb fawb kev txhim kho kab ntawm kab hauv lub cev los kwv yees lub sijhawm tuag. Cov kev txiav txim siab no tsis yog qhov yooj yim ib txwm vim tias tus nqi ntawm cov kab menyuam loj hlob tau cuam tshuam los ntawm ib puag ncig cuam tshuam xws li thaj chaw nyob, huab cua, thiab huab cua puag ncig
Dab tsi yog lub sijhawm rau pob txha fusion ntawm ob lossis ntau lub vertebrae uas tsim cov phab ntsa tom qab ntawm lub plab hlaub hauv tib neeg?
![Dab tsi yog lub sijhawm rau pob txha fusion ntawm ob lossis ntau lub vertebrae uas tsim cov phab ntsa tom qab ntawm lub plab hlaub hauv tib neeg? Dab tsi yog lub sijhawm rau pob txha fusion ntawm ob lossis ntau lub vertebrae uas tsim cov phab ntsa tom qab ntawm lub plab hlaub hauv tib neeg?](https://i.answers-medical.com/preview/medical-health/13995223-what-is-the-term-for-a-bone-fusion-between-two-or-more-vertebrae-that-forms-the-posterior-wall-of-the-pelvis-in-humans-j.webp)
Lub sacrum (/ˈsækr? M/lossis/?se? Kr? M/; plural: sacra lossis sacrums), hauv tib neeg lub cev, yog cov pob txha loj, peb tog ntawm lub hauv paus ntawm tus txha nraub qaum uas tsim los ntawm kev sib xyaw ntawm sacral vertebrae S1– S5 ntawm hnub nyoog 18 thiab 30 xyoos. Lub sacrum nyob rau sab sauv, sab nraub qaum ntawm lub plab kab noj hniav, nruab nrab ntawm ob lub tis ntawm lub plab mog
Kev kwv yees kwv yees ncua sij hawm ntawm lub sijhawm tuag txhais tau tias nws txiav txim siab li cas?
![Kev kwv yees kwv yees ncua sij hawm ntawm lub sijhawm tuag txhais tau tias nws txiav txim siab li cas? Kev kwv yees kwv yees ncua sij hawm ntawm lub sijhawm tuag txhais tau tias nws txiav txim siab li cas?](https://i.answers-medical.com/preview/medical-health/14012420-what-does-post-mortem-interval-estimations-mean-how-is-it-determined-j.webp)
Kev txiav txim siab ntawm lub sijhawm tuag tom tsev yog ib qho tseem ceeb thiab theem pib hauv txhua qhov kev tshawb fawb qhov chaw tuag thaum tsis tau pom dua qhov kev tuag. Kev kwv yees ntawm qhov post mortem interval yog txhais raws li qhov ntev ntawm lub sijhawm ntawm kev tuag thiab kev tshawb pom lub cev
Qhov twg ntawm cov hauv qab no yog qhov sib txawv loj ntawm cov pas nrig thiab lub khob hliav qab?
![Qhov twg ntawm cov hauv qab no yog qhov sib txawv loj ntawm cov pas nrig thiab lub khob hliav qab? Qhov twg ntawm cov hauv qab no yog qhov sib txawv loj ntawm cov pas nrig thiab lub khob hliav qab?](https://i.answers-medical.com/preview/medical-health/14067928-which-of-the-following-is-the-major-difference-between-rods-and-cones-j.webp)
Cov pas nrig yog lub luag haujlwm rau qhov pom ntawm qhov tsis pom kev qis (scotopic vision). Lawv tsis kho qhov muag pom xim, thiab muaj qhov tsis tshua pom kev zoo. Cones yog nquag nyob rau theem siab dua (photopic vision), muaj peev xwm ntawm kev pom xim thiab muaj lub luag haujlwm rau siab spatial acuity
Cov kws kho kev puas siab puas ntsws hais tias kev xav txog lub siab lub ntsws tsom mus rau kev kawm txog tus cwj pwm dab tsi uas tib neeg ua ntau dua li tib neeg tau ntsib?
![Cov kws kho kev puas siab puas ntsws hais tias kev xav txog lub siab lub ntsws tsom mus rau kev kawm txog tus cwj pwm dab tsi uas tib neeg ua ntau dua li tib neeg tau ntsib? Cov kws kho kev puas siab puas ntsws hais tias kev xav txog lub siab lub ntsws tsom mus rau kev kawm txog tus cwj pwm dab tsi uas tib neeg ua ntau dua li tib neeg tau ntsib?](https://i.answers-medical.com/preview/medical-health/14119570-which-psychologists-insisted-that-psychology-focus-entirely-on-the-study-of-behavior-what-people-do-rather-than-what-people-experience-j.webp)
Cov kws kho kev puas siab puas ntsws puas tau hais tias psychologyfocusentirely ntawm txoj kev kawm ntawm tus cwj pwm-cov neeg ua dab tsi- dua li cov neeg tau ntsib? B. F. Skinner siv lub 'conditioningchamber' hauv nws txoj kev tshawb fawb nrog: A