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TLS Online TPP Program

#Id: 4458

Molecules in the metal coating are excited and release secondary electrons that are focused onto a scintillation detector



#Unit 13. Methods in Biology #Electron Microscopy #Part B Pointers
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TLS Online TPP Program

#Id: 6598

#Unit 7. System Physiology – Animal

Female hormonal system, consists of three hierarchies of hormones:

GnRH
FSH and LH
Estrogen and progesterone
TLS Online TPP Program

#Id: 6599

#Unit 7. System Physiology – Animal

FSH and LH stimulate sex hormone synthesis by the activation of the cyclic adenosine monophosphate second messenger system
TLS Online TPP Program

#Id: 6600

#Unit 7. System Physiology – Animal

Granulosa cells have FSH receptors 
Theca cells have LH receptors
TLS Online TPP Program

#Id: 6601

#Unit 7. System Physiology – Animal

FSH stimulates aromatase in the granulosa cells
TLS Online TPP Program

#Id: 6602

#Unit 7. System Physiology – Animal

LH stimulates cholesterol desmolase in the theca cells
TLS Online TPP Program

#Id: 6603

#Unit 7. System Physiology – Animal

In the granulosa cells,
All the androgens and much of the progesterone
are converted into estrogens by the enzyme aromatase