单项选择题

Prolactin is synthesized and secreted by which of the following cells

A．Acidophils in the pars distails
B．Basophils in the pars tuberalis
C．Somatotrophs in the pars distalis
D．Basophils in the pars intermedia
E．Chief cell

<上一题目录下一题>

热门试题

单项选择题

Which of the following statements concerning secondary ovarian follicles is TRUE

A．They lack liquor folliculi
B．They contain a secondary oocyte
C．Their continued maturation requires FSH
D．They lack a theca externa
E．They have a single layer of cuboidal follicular cells surrounding the oocyte

单项选择题

Seminiferous tubules contain all of the following components EXCEPT

A．Sertoli cells
B．Spermatocytes
C．A fibrous connective tissue tunic
D．Skeletal muscle in their tunica propria
E．A germinal epithelium