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TLS Online TPP Program

#Id: 2365

Sigma neoblasts are highly proliferative and are the only stem cells directly responsive to injury.


#Unit 5. Developmental Biology #Regeneration in Vertebrates #Part B Pointers
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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
TLS Online TPP Program

#Id: 6604

#Unit 7. System Physiology – Animal

Theca cells synthesize and secrete progesterone.
TLS Online TPP Program

#Id: 6605

#Unit 7. System Physiology – Animal

Three estrogens are present in the plasma of the human female: 

1β-estradiol
 Estrone
Estriol
TLS Online TPP Program

#Id: 6606

#Unit 7. System Physiology – Animal

The principal estrogen secreted by the ovaries is β-estradiol
TLS Online TPP Program

#Id: 6607

#Unit 7. System Physiology – Animal

Estrogens inhibit osteoclastic activity in the bones and therefore stimulate bone growth.