Hypothalamus vs Thalamus
Thalamus thiab hypothalamus yog cov diencephalon hauv lub hlwb ntawm lub hlwb. Diencephalon nyob ib puag ncig lub ventricle thib peb thiab nyob ib sab ntawm lub midbrain. Txij li thaum thalamus yog qhov loj tshaj plaws ntawm thaj av no, feem ntau ntawm cov ntaub so ntswg neural ntawm diencephalon muaj nyob hauv thalamus. Ob leeg thalamus thiab hypothalamus pom nyob ze rau ntawm qhov nruab nrab ntawm lub hauv paus ntawm cerebrum.
Thalamus
Thalamus yog ob lub lobed qauv, uas tsim qhov zoo tshaj plaws ntawm cov phab ntsa sab nraud ntawm peb lub ventricle ntawm lub hlwb. Nws muaj oval pawg ntawm cov teeb meem grey uas muaj cov kab ntawm cov teeb meem dawb thiab cov teeb meem grey teeb tsa rau hauv nuclei. Lub anterior nucleus muaj nyob rau hauv pem teb ntawm lub ventricle lateral thiab yog txuam nrog kev xav, nco, thiab limbic system. Lub nruab nrab nucleus muaj kev txhawj xeeb nrog cov ntaub ntawv xav tau. Peb lub ventral nuclei nyob rau hauv lub thalamus yog ventral anterior nucleus thiab ventral lateral nucleus txuam nrog somatic motar system, thiab ventral posterior nucleus txhawj xeeb nrog rau cov ntaub ntawv xws li saj, kov, siab, kub, txias thiab mob. Pulvinar nucleus muaj nyob rau ntawm qhov posterior ntawm lub thalamus, thiab nws integrates sensory information and project impulses to the other related regions of the cerebrum. Lateral geniculate lub cev thiab medial geniculate lub cev yog qhov tseem ceeb ntawm qhov muag pom thiab hnov qhov chaw relay ntawm thalamus.
Hypothalamus
Hypothalamus yog tus ntiv tes loj ntawm cov qauv, nyob rau ntawm lub hemisection ntawm lub hlwb thiab nws nyob ib puag ncig sab qis ntawm peb lub ventricle. Hypothalamus kuj muaj qee cov nuclei tseem ceeb. Lub supraoptic nucleus nyob ze optic chiasma secretes antidiuretic (Vasopressin) hormone. Paraventricular nucleus yog pom nyob ze ntawm lub ventricle thib peb, thiab nws secretes oxytocin, uas ua rau contraction ntawm cov nqaij mos ntawm lub tsev menyuam. Preoptic nucleus tswj qee cov haujlwm autonomic xws li lub cev kub. Lwm thaj chaw tseem ceeb uas muaj ob peb lub nuclei hauv hypothalamus yog thaj chaw tubural, thaj chaw muaj kev sib haum xeeb, thaj chaw parasympathetic, thaj chaw mammillary, thiab chaw siab ntsws.
Dab tsi yog qhov txawv ntawm Thalamus thiab Hypothalamus?
• Thalamus loj dua hypothalamus.
• Hypothalamus nyob qis dua rau thalamus hauv diencephalon.
• Hypothalamus txuas nrog lub caj pas pituitary los ntawm infundibulum, tab sis thalamus tsis yog.
• Tsis zoo li thalamus, hypothalamus zais cov tshuaj hormones xws li Vasopressin thiab Oxytocin.
• Tag nrho cov ntaub ntawv hnov qab (tshwj tsis yog olfactory impulses) kis mus rau cerebrum los ntawm thalamus, whereas hypothalamus ua qhov cuam tshuam ntawm endocrine thiab lub paj hlwb.
