Eje Hormonal.docx - HIPOTLAMO Desde el cromosoma Desarrollo...

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Sintetiza la Hormona liberadora de gonadotropina GnRH Estimula la secreción de FSH y LH por las células gonadotrópas Regula la espermatogenia testicular Estimula la producción de testosterona HIPOTÁLAMO ADENOHIPÓFISIS LH FSH Estimula a la adenohipófisis para que secrete LH y FH imentación negativa imentación negativa VARÓN 46 XX Masa de Barr positiva Obesidad central Testículos pequeños Hipogonadismo hipertrófico Inactivación de uno de los cromosomas X Gen SRY positivo Región determinante del cromosoma Y Síndrome del Varón Regulador principal de la determinación del sexo masculino gen SRY Desde el cromosoma Y hasta el X Intercambio del material Incongruencia con el sexo cromosómico, fenotípico y gonadal 10 años Desarrollo insuficiente de los caracteres sexuales masculinos secundarios hipertrófico Pubertad Producción y acción de los esteroides sexuales Ausencia de retroalimentación negativa Aumenta FSH Y LH Exámenes Peso y talla Sexo cromosómico mujer
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