Endocrine control Flashcards
0
Q
Exocrine Gland
A
-contains a duct
1
Q
Endocrine Gland
A
- ductless gland
- makes hormones secreted directly into bloodstream
2
Q
Paracrine
A
- hormone acting in localized region
- affects a target cell nearby the secreting cell
3
Q
Non-Steroid Hormone
A
- binds to cell surface receptor
- binding causes conformational change of receptor
- causes cascade of chemical rxns
- very specific
4
Q
Steroid Hormone
A
- could cross cell membrane
- receptors can be in cytoplasm or nucleus
- cytoplasmic receptor binds to hormone and is moved into nucleus
- turn on genes–>make proteins
5
Q
Prolactin
A
- secreted by anterior pit
- causes production of milk
6
Q
FSH
A
- in women, stimulates maturation of the follicle
- in men, stimulates sperm production
7
Q
LH
A
- in women, its the trigger for ovulation
- in men, it stimulates testosterone production
8
Q
Kisspeptin Neurons
A
-have receptors that will relay negative feedback message to GnRH neurons
9
Q
Kallman Syndrome
A
- primary symptom is failure to start puberty, infertility
- GnRH neurons fail to migrate into hypothalamus during embryonic development
- inability to smell
10
Q
SRY Region
A
- sex determining region
- responsible for production of testes determining factor(TDF)
11
Q
TDF
A
-causes formation of testes
12
Q
Anti-Mullarian Hormone(AMH)
A
- produced by Sertoli cells of the testes
- kills off mullarian ducts
13
Q
5(alpha)-Reductase
A
- enzyme produced in Sertoli cells of testes
- converts testosterone into dihydrotestosterone(DHT)
- necessary for development of external male structures
14
Q
Testicular Feminization
A
- receptors for testosterone absent in wolfian ducts
- externally female, internally male
- neither wolfian nor Müllerian ducts survive
