扬州大学：《组织胚胎学》课程教学课件（讲稿）内分泌系统 Endocrine system

Review1.Immune cells: lymphocytes, cells of mononuclear phagocytesystem, and antigen-presenting cells, etc.2.Lymphoid tissues: diffuse lymphoid tissue and lymphoidnodule.3.Lymphoid organs:central lymphoidorgans(thymus,bonemarrow),peripheral lymphoid organs (lymph nodes, spleen and tonsils).4. Thymus CapsuleCortex: Blood-thymus barrierMedulla: thymic corpuscles

Review 1. Immune cells: lymphocytes, cells of mononuclear phagocyte system, and antigen- presenting cells, etc. 2. Lymphoid tissues: diffuse lymphoid tissue and lymphoid nodule. 3. Lymphoid organs: central lymphoid organs (thymus, bone marrow), peripheral lymphoid organs (lymph nodes, spleen and tonsils). 4. Thymus Capsule Cortex: Blood-thymus barrier Medulla: thymic corpuscles

5.lymphnodesCapsuleCortex : Superfacial cortex(lymphoid nodules福Paracortical zone(postcapillaryvenulesCorticallymphoid sinusesMedulla: Medullary cordsMedullarylymphoid sinuses6. SpleenCapsuleWhite pulp:Periarterial lymphatic sheathLymphoidnodulesMarginal zoneRed pulp:Splenic cordsSplenic sinusoids

5. lymph nodes Capsule Cortex : Superfacial cortex(lymphoid nodules ) Paracortical zone (postcapillary venules ) Cortical lymphoid sinuses Medulla: Medullary cords Medullary lymphoid sinuses 6. Spleen Capsule White pulp: Periarterial lymphatic sheath Lymphoid nodules Marginal zone Red pulp: Splenic cords Splenic sinusoids

.Cretinism??21-years girl, 79cm, 10kg

21-years girl，79cm，10kg ?? Cretinism

Titan??

Titan ??

Pineal glardPituitary glandEndocrine SystemparathyrcidglandsAdrenalglandPancreasTestisOvary

Endocrine System

1.General descriptionThyroidParathyroidAdrenal glandsEndocrine glandsComponentsHypophysisEndocrine tissuePineal bodyEndocrine cellsproductAct ontarget organshormonetarget cells

Components Endocrine glands Endocrine tissue Endocrine cells hormone product target organs target cells Act on 1.General description Thyroid Parathyroid Adrenal glands Hypophysis Pineal body

Pineal glandPituitaryglandThyroidandparathyroid glandsAdrenalglandPancreasTestisOvary

General characteristics1. Endocrine cells inpredominanceCapillaries2. Arranged as cords, clumps,or hollow follicles.3. Rich in capillary networksSecretorycells4.Ductless

1. Endocrine cells in predominance 2. Arranged as cords, clumps, or hollow follicles. 3. Rich in capillary networks. 4. Ductless General characteristics

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Classification ofhormone---amino acid-based hormoneAmino acid derivatives, amine,peptidesandprotein---Steroid-hormoneCholesterol Eg.androgen

Classification of hormone -amino acid-based hormone Amino acid derivatives, amine, peptides, and protein -Steroid-hormone Cholesterol Eg. androgen