HIPOTALAMO Flashcards

1
Q

Hormonas producidas

A

GHRH (liberadora de GH)
TRH (tirotropina)
CRH (corticotropina)
GnRH (gonadotrofinas)
Inhibidoras de prolactina (PIH y dopamina)
OXT (oxcitocina)
ADH (antidiurética)
SST (somatostatina)

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2
Q

Núcleos

A
  • Paraventricular
    °Neuro
    °ADH, OXT,PVN, TRH,CRH,ADH y VIP
  • Supraóptico
    °Neuro
    ° ADH y OXT
  • Arqueado
    °Adeno
    °GHRH,GnRH,DA
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3
Q

GHRH

A
  • Secretada en hipo, almacenada en adeno.
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4
Q

GHIH (somatostatina)

A
  • Inhibidora
    -Secretada en periventricular,adeno
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5
Q

DA (dopamina)

A

-Inhibe PRL
- N. Arqueado
- Circula por V. porta por fenestración.

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6
Q

Factores que liberan PRL

A

-TRH (tirotropina, h liberadora, regula secreción TSH)
-TSH (secreta tirotropina)

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7
Q

CRH (cortirotropina, cortisol)

A
  • Hipotálamo
  • Secreta CRH –> ACTH
  • N. paraventricular
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8
Q

GnRH (gonadotropina)

A
  • Estimula secreción LH y FSH
  • Hipotálamo anterior
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