endocrine & lymphatic systems lab 6. major endocrine glands

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  • Endocrine & Lymphatic SystemsLAB 6

  • Major EndocrineGlands

  • Endocrine Glands Within the Brain

  • Pineal GlandHypothalamusPituitary StalkPituitary Gland -Anterior -Posterior

  • 3. Sphenoid Bone Sella Turcica (Turkish Saddle) = Houses Pituitary gland

  • Pituitary gland HormonesAnteriorGrowth Hormone (GH)

    Thyroid Stimulating Hormone (TSH)

    Adrenocorticotropic hormone (ACTH)

    Luteinizing hormone (LH)

    Follicle Stimulating Hormone (FSH)

    Prolactin (PRL)PosteriorAntidiuretic hormone (ADH)Oxytocin (OT)

  • Anterior Pituitary HormonesGH stimulates cell growth & division

    TSH Stimulates thyroid gland

    ACTH Stimulates adrenal cortex

    FSH/LH- Stimulates ovaries & testes

    PRL stimulates lactation in mammary glands

  • Posterior Pituitary HormonesADH Promotes water reabsorption by kidneys

    Oxytocin- Stimulates uterine contractions

  • Pineal glandSecretes hormone melatoninRegulates circadian rhythm (sleep/wake cycle)

  • Thyroid GlandLarynx Models

  • Larynx ModelPosterior ViewParathyroid Glands

  • T3 & T4 = increases metabolism

    Calcitonin = promotes bone depositionRemoves Calcium from bloodThyroid Gland Hormones:Parathyroid Gland Hormones:Parathyroid Hormone (PTH) = Promotes bone resorptionIncreases blood

  • AdrenalGlandsKidneyKidneyOvaries

  • Adrenal GlandmedullaCortex

  • Adrenal Medulla Epinephrine (adrenaline) & Norepinephrine Fight or Flight hormones Stress ResponseAdrenal Cortex (Steroid Hormones) Aldosterone: Increases sodium reabsorption by kidneys

    Cortisol: Gluconeogenesis Glucose synthesis from noncarbohydrates Sex Hormones: supplement gonadsKidneys Erythropoietin Stimulates RBC production

  • Pancreas

  • Pancreatic islets(Isets of Langerhans)Alpha Cells Beta CellsGlucagonInsulinDelta CellsSomatostatin

  • Pancreas hormonesGlucagon: Raises blood glucoseGluconeogenesisGlycogenolysis breakdown of glycogen into glucose

    Insulin: Lowers blood glucosePromotes cellular uptake of glucose

  • ThymusSecretes Thymosin: Promotes T-cell maturation

  • Ovaries secretes estrogen/progesteroneTestes secretes testosteroneEstrogen, Progesterone, and Testosterone = steroid hormones

  • Thoracic DuctLeft Subclavian vein

  • Right Lymphatic DuctRight Subclavian Vein

  • Cervical Lymph nodes

  • Axillary Lymph nodes

  • Inguinal Lymph NodesAbdominal (Mesenteric) Lymph Nodes

  • Supratrochlear Lymph Nodes

  • Thoracic Lymph Nodes

  • Tonsils

  • AppendixThought to serve as a lymphatic organ

  • Thymus gland & SpleenThymus gland Development of T lymphocytes Spleen removes viruses, bacteria, and old RBC from circulation

  • Lymph Node SlidemedullaNoduleCortex Cortex = Nodules of B-Cell lymphocytes Medulla = T-Cell Lymphocytes & Macrophages

  • Spleen Red Pulp Composed of red blood cellsWhite Pulp Composed of white blood cellsWhite PulpRed Pulp



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