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TLS Online TPP Program

#Id: 1912

T1 cells are mIgMhi, mIgD -/lo, CD21-, CD23-, CD24+, and CD93+.  T2 cells differ from T1 cells in having higher levels of mIgD and in expressing CD21 and CD23.

#Unit 4. Cell Communication and Cell Signaling #B and T cell receptors #Part B Pointers
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TLS Online TPP Program

#Id: 1200

#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: 1201

#Unit 7. System Physiology – Animal

Theca cells synthesize and secrete progesterone.
TLS Online TPP Program

#Id: 1202

#Unit 7. System Physiology – Animal

Three estrogens are present in the plasma of the human female:
1. β-estradiol
2. Estrone
3. Estriol
TLS Online TPP Program

#Id: 1203

#Unit 7. System Physiology – Animal

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

#Id: 1204

#Unit 7. System Physiology – Animal

Estrogens inhibit osteoclastic activity in the bones and therefore stimulate bone growth.
TLS Online TPP Program

#Id: 1205

#Unit 7. System Physiology – Animal

During female reproductive cycle, Estrogen stimulate rapid proliferation of the stromal cells and the epithelial cells of endometrium, before ovulation.