BÀI 4
CHỨC NĂNG TUYẾN
THƯỢNG THẬN
VÀ TUYẾN TUỴ NỘI TIẾT
CHỨC NĂNG
TUYẾN THƯỢNG THẬN
Nằm ở cực trên 2 thận.
Tuyến có 2 fần: vỏ thượng thận = 2/3, tuỷ
thượng thận = 1/3 khối lượng.
Vỏ thượng thận:
Tổ chức tuyến, chia 3 lớp, SX 3 nhóm
hormon:
-Lớp cầu, SX Mineralocorticoid
-Lớp bó, SX Glucocorticoid
-Lớp lưới, SX Androgen
Tuỷ thượng thận:
Coi là hạch giao cảm khổng lồ, SX
catecholamin.
1.1- HORMON VỎ THƯỢNG THẬN.
Bản chất: steroid ,
từ tiền chất là
cholesterol.
Tên chung:
corticosteroid hay
corticoid.
Có nhân cơ bản: Cyclopentano-
Perhydrophenan thren
Gồm 3 chất chính:
- Cortison, Cortisol (hay Hydrocortisol) và
Corticosteron.
1.1.1-Nhóm glucocorticoid.
-Bản chất: là một
steroid có nhóm
=O hoặc nhóm
- OH ở vị trí C11
hoặc C17.
![Điện Tâm Đồ: Bài giảng lớp kỹ năng đọc [chuẩn nhất]](https://cdn.tailieu.vn/images/document/thumbnail/2026/20260204/hoaphuong0906/135x160/63751770260074.jpg)
![Bài giảng xét nghiệm cơ bản trong thận học [mới nhất]](https://cdn.tailieu.vn/images/document/thumbnail/2026/20260123/lionelmessi01/135x160/38501769159065.jpg)
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