( Specifically ( ( the estrogens ) ( ( are ( secreted ( by ( ( ( the ( theca ( interna cells ) ) ) and ) ( ( the ( granulosa cells ) ) ( of ( ( ( ( ( the ( ovarian follicle ) ) , ) ( the ( corpus luteum ) ) ) and ) ( the placenta ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Specifically)) (NP (DT the) (NNS estrogens)) (VP (VBP are) (VP (VBN secreted) (PP (IN by) (NP (NP (DT the) (JJ theca) (NN interna) (NNS cells)) (CC and) (NP (NP (DT the) (NN granulosa) (NNS cells)) (PP (IN of) (NP (NP (DT the) (NN ovarian) (NN follicle)) (, ,) (NP (DT the) (NN corpus) (NN luteum)) (CC and) (NP (DT the) (NN placenta))))))))) (. .)))
Specifically the estrogens are secreted by the theca interna cells and the granulosa cells of the ovarian follicle, the corpus luteum and the placenta.
(ROOT (S (NP (NP (DT The) (NNS cells)) (PP (IN in) (NP (DT the) (NN follicle)))) (VP (VP (VBP undergo) (NP (JJ physical) (NNS changes))) (CC and) (VP (VBP produce) (SBAR (S (NP (DT a) (NN structure)) (VP (VBD called) (NP (DT a) (NN corpus) (NN luteum))))))) (. .)))