what happens from 9 weeks to term
Continued cell proliferation
sexual differentiation
fetal circulatory system and shunts
what is the difference between primary and secondary sexual characteristics
Prumary describes anatomy and physiology of the reproductive system
secondary sexual characteristics develop during puberty
what is biological sex based on
- presence or absence of Y chromosome
- Type of Gonads
- sex hormones
- internal reproductive anatomy
- external genetalia
how can sexual differentiaon be explained
Sex determination is dependent on the specification of gonads to testes or ovaries
the Y chromosome plays a big part. the SRY gene on the Y chromosome directs developement of testes and if not default is ovaries
could you talk about the male and female development
slide 5
what is the cloaca and what does it do to males and females
cloaca is extension of primitive gut
the duct connect bipentation gonads in males the cloaca turns into urethra and rectum
in femals the cloaca devides and developes into lower vagina urethra and rectum
what happenes with androgen insensitivity
Slide 9
what happens in mutation in 5a reductse
slide 10
what are dihydrotestosterone needed for
penis development/ enlargement, prostate growth, fusion of tissues to from scrotom
what happens at puberty for males
large serge in testosterone, causes penis enlargement, and male secondary sexual charecteristics.
what are circulatory shunts
They divert blood flow and bypass immature organs such as liver and lungs till birth
explain fetal circulation including the use of circulaatory shunts.
slide 11
what happens in weeks 9-12
slide 14
what hapens weeks 13-16
slide 15
what are some potential health complications with meconium that can occur at birth
slide 16
what happens at 16 - 20 weeks
slide 17
what happens weeks 21-30
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