Chapter 46 notes

Howmanychromosomesarepresentineach ofthesecells 1nso

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: is:( Differen8a8on$of$sperma8ds$into$a$mo8le$ sperm$ they mature into motile sperm! How(many(chromosomes(are(present(in(each( of(these(cells?( 1n…so 23 chromosomes $$ During(which(stage(of(meiosis(is(gene5c(varia5on(generated?( Between PRIMARY and SECONDARY spermatocyte (so in Meiosis I…bc u have crossing over/random alignment) FSH: Follicle stimulating hormone LH: Leutenizing hormone Hormonal(Control(of(Sperm(Produc5on( Part'of'the'Brain' CrossQsec5on(of(tes5s( releases FSH & LH Sertoli$Cell$ Developing$ Spermatocytes$ Leydig$Cell$ makes sertoli cells which make Androgen-binding protein needed to make sperm & also provide energy makes testosterone (acts on Leydig) ABP( binds test. in tubule Sertoli(cells:((( •  Located within seminferous tubule $$$$ •  Produces$molecules$that$nourish$the$developing$sperm$ •  Also$produce$Androgen$Binding$Protein$(ABP)$–$func8ons$to$binds$testosterone$within$the$ seminiferous$tubules$ ( Leydig(cells:$ Produce androgens -- mainly testosterone Testosterone!levels! Nega5ve(Feedback(Regulates(Testosterone(Produc5on(in(the(Leydig(Cells( Turn!on! Nega/ve! Feedback! Turn!on! Nega/ve! Feedback! (P)!!GnRH,!LH!! (P)!!GnRH,!LH!! Average! (+)!!GnRH,!LH!! Turn!off! Nega/ve! Feedback! Female(Reproduc5ve(Anatomy( *$ Also$called$the$fallopian$tube$ Cilia$and$contrac8ons$of$ the$oviduct$move$2nd$ oocyte$towards$the$uterus$ Also$called$womb$ Site$of$sperm$deposi8on$ Ovula/on:!releases$secondary$oocyte$$k$swept$into$the$oviduct$ Uterus:$$$contains$a$thick$muscular$layer$(myometrium)$$ Endometrium:!$$ Cervix:$$Usually$contains$a$thick$mucus$plug$ Vagina:$$muscular$but$elas8c$structure$–$serves$as$the$birth$canal$ Oogenesis:((Takes'place'during'...
View Full Document

Ask a homework question - tutors are online