Lub ntsiab yam ntawm hlwb

Nyob rau hauv lub cev, cov nroj tsuag thiab cov tsiaj paim ntau hom ntawm cov ntaub so ntswg hlwb. Fabrics yuav txawv raws li tus xovtooj ntawm cov qauv, thiab cov qauv ntawm cov extracellular matrix, raws li zoo raws li lawv lub zog. Ntau cell hom tej zaum yuav txawv dua li tus duab, loj, me, lub muaj los yog tsis tuaj kawm ntawv ntawm tej yam organelles. Ntau hom kev hlwb txoj kev sib txawv ntawm cov ntaub so ntswg. Xav txog lub ntsiab hom hlwb.

Zaub, mushroom, tsiaj, kab mob

Qhov no kev faib ntawm hlwb, nyob ntawm seb lub kab uas ua tau. Ntawm no yog ib tug sib piv daim ntawv, uas qhia tau hais tias lub hom hlwb, lawv sib txawv thiab zoo sib xws.

Hom ntawm hlwb ntawm ntau yam ntaub so ntswg

Ntau yam sib txawv hlwb tsim cov ntaub so ntswg. Nyob rau hauv tas li ntawd, ib tug thiab tib yam ntaub yog muaj li ntawm ob peb ntau hom hlwb.

epithelial hlwb

Lawv hu ua epithelial hlwb. Qhov no polar differentsiirovannye hlwb nyob ze rau txhua lwm yam. Tej zaum lawv yuav nyhav, platy los yog cylindrical zoo. Epithelial hlwb feem ntau yog nyob rau hauv lub basal membrane.

Hom ntawm connective cov ntaub so ntswg hlwb

Connective cov ntaub so ntswg Muaj ob peb hom:

• reticular;
• tuab fibrous;
• xoob fiber;
• pob txha;
• pob txha mos;
• roj;
• ntshav;
• cov qog.

Txhua yam ntawm cov ntaub so ntswg muaj ib tug ntau yam ntawm lub hlwb thiab intercellular substance. Reticulum muaj reticulocytes thiab reticular fibers. Ntawm reticulocytes yuav tsim hematopoietic hlwb thiab macrophages - hlwb lub luag hauj lwm rau tiv thaiv lub cev tiv thaiv kab mob.

Cov tuab fibrous cov ntaub so ntswg muaj yeej tseem zoo ntawm fibers thiab ib tug xoob - los ntawm amorphous substance. Cov tuab fibrous cov ntaub so ntswg elasticity muab cov tub ceev xwm, thiab xoob nyob qhov khoob ntawm cov hauv nruab nrog cev.

Pob Txha cov ntaub so ntswg muaj ntau hom kev hlwb: osteogenic, osteoblasts, osteoclasts, thiab osteocytes. Cov yav tas yog yooj yim cov ntaub so ntswg hlwb. Osteogenic - yog undifferentiated hlwb uas yuav tsim pob txha hlwb, osteoblasts thiab osteoclasts. Osteoblasts tsim tshuaj uas ua tau lub extracellular matrix ntawm cov pob txha. Osteoclasts yog lub luag hauj lwm rau lub resorption ntawm cov pob txha ntaub so ntswg, yog tias tsim nyog. Tej zaum tsis muaj lawv mus rau lub pob txha hlwb.

Pob txha mos cov ntaub so ntswg muaj chondrocytes thiab chondroblasts chondroclasts. Tus thawj yog nyob rau hauv tus txheej txheej ntawm cov pob txha mos. Lawv muaj ib tug fusiform zoo. Chondroblasts nyob rau hauv lub puab txheej. Lawv muaj ib tug dawb los yog yeej zoo lawm. Chondroclasts lub luag hauj lwm rau lub pov tseg ntawm cov laus pob txha mos hlwb.

Adipose cov ntaub so ntswg muaj tsuas yog ib hom ntawm hlwb: adipocytes. Lawv muaj ib tug loj npaum li cas ntawm spare roj.

Ib tug ntau yam ntawm cov ntshav thiab cov qog

Ntshav muaj ntau hom hlwb, hu ua ntshav. Qhov no cov ntshav liab, qe ua ntshav khov thiab qe ntshav dawb, uas yog muab faib ua ob peb hom. Erythrocytes muaj ib tug flattened yeej zoo lawm. Lawv muaj cov protein ntau hemoglobin, uas yog ib tug muaj nuj nqi - cov thauj ntawm cov pa thoob plaws hauv lub cev. Platelets - me me uas tsis yog-nuclear hlwb. Lawv yog cov luag hauj lwm rau cov ntshav txhaws. Leukocytes yog tib neeg thiab tsiaj tiv thaiv kab mob.

Dawb ntshav raug muab faib ua ob lub ntsiab pawg: granular thiab nezernistye. Cov yav tas los xws li qe, eosinophils, thiab basophils. Tus thawj muaj peev xwm ntawm phagocytosis - lub noj ntawm hostile kab mob thiab cov kab mob. Eosinophils yog tseem tau phagocytosis, tab sis nws tsis yog lawv lub ntsiab lub luag hauj lwm. Lawv lub ntsiab muaj nuj nqi yog yuav ua kom puas lub histamine tso tawm los ntawm lwm lub hlwb thaum lub sij hawm lub inflammatory txheej txheem, uas yuav ua kom o. Basophils kho mob thiab paim eosinophil chemotactic tau.

Nezernistye leukocytes raug muab faib ua lymphocytes thiab monocytes. Tus thawj yog muab faib ua peb cov chav kawm ntawv, nyob ntawm seb lawv zog. Muaj T-hlwb, B hlwb thiab thov hlwb. B hlwb lub luag hauj lwm rau cov tshuaj. T hlwb yog lub luag hauj lwm rau lub Vocabulary ntawm txawv teb chaws lub hlwb, thiab stimulation ntawm lub chaw ua hauj lwm ntawm B-lymphocytes thiab monocytes. Xoom lymphocytes yog qhaib.

Monocytes los yog macrophages, yog tseem muaj peev xwm sawv ntawm phagocytosis. Lawv puas kab mob thiab cov kab mob.

tshee cov ntaub so ntswg

Cov nram qab no hom ntawm cov hlab hlwb:

• kom paj;
• glia.

Paj hlwb hu ua neurons. Lawv muaj xws li ib tug nyuj thiab dab: ntev axon thiab luv luv dendrite branching. Lawv yog cov luag hauj lwm rau cov tsim thiab momentum hloov lwm lub tsev. Nyob rau hauv lub xov tooj ntawm propagules twb raug rho tawm unipolar (ib), bipolar (ob tug), thiab multipolar (a plurality) neurons. Multipolar feem ntau nyob rau hauv tib neeg thiab tsiaj.

Glial hlwb khiav lag luam thiab khoom noj khoom haus txhawb nqa zog uas ruaj khov kev tso kawm nyob rau hauv qhov chaw thiab lub mov ntawm cov as-ham rau neurons.

mob hlwb

Lawv hu ua myocytes, los yog fibers. Muaj peb hom nqaij :

• striated;
• lub plawv;
• tus.

Nyob ntawm seb cov ntaub so ntswg hom, myocytes yog cov sib txawv. Nyob rau hauv cov ntaub so ntswg striated lawv yog ntev, elongated, muaj ob peb cores thiab ib tug loj tus naj npawb ntawm mitochondria. Tsis tas li ntawd, lawv yog intertwined. Du nqaij yog yus muaj los ntawm me me myocytes muaj tsawg nuclei thiab mitochondria. Du nqaij yog tsis muaj peev xwm yuav raug txo kom sai li sai striated. Lub plawv mob yog muaj li ntawm mob hlwb, yog neeg zoo li cov neeg ntawm striated cov ntaub so ntswg. Tag nrho myocytes muaj contractile cov nqaijrog: actin thiab myosin.