Chapter 12 三 ndocrine System
Chapter 12 Endocrine System
1. Components small gland or endocrine cell: islet of pancreas and corpus luteum endocrine gland 9 Thyroid gland e Parathyroid gland ● Adrenal gland e Pituitary gland(hypophysis) e Pineal bodi
1. Components: ---small gland or endocrine cell: islet of pancreas and corpus luteum ---endocrine gland: Thyroid gland Parathyroid gland Adrenal gland Pituitary gland(hypophysis) Pineal body
2. General structure capsule: CT -parenchyma: endocrine cells arranged into nest cord cluster or follicle, secrete hormones interstitium: CT, rich in capillaries
2. General structure ---capsule: CT ---parenchyma: endocrine cells arranged into nest, cord, cluster or follicle, secrete hormones ---interstitium: CT, rich in capillaries
According to hormones ---nitrogenous-hormone secreting cell ●RER Golg ● secretory granules steroid-hormone secreting cel ●SER e mitochondria: with tubular-vesicular cristae 9 ipid droplet: raw-materials
* According to hormones ---nitrogenous-hormone secreting cell: RER Golgi secretory granules ---steroid-hormone secreting cell: SER mitochondria: with tubular-vesicular cristae lipid droplet: raw materials
tHyroid gland largest endocrine gland, 15-40g two-lobes, connect/ to each other by isthmus
3. Thyroid gland ---largest endocrine gland, 15-40g ---two-lobes, connect to each other by isthmus