Download Thyroid Gland Hormones

LAB 6
Endocrine & Lymphatic Systems
Major Endocrine
Glands
Endocrine Glands Within the Brain
Pineal
Gland
Hypothalamus
Pituitary Stalk
Pituitary Gland
-Anterior
-Posterior
•
3. Sphenoid Bone
Sella Turcica (Turkish Saddle) = Houses Pituitary gland
Pituitary gland Hormones
Anterior
Posterior
• Growth Hormone (GH)
• Antidiuretic hormone (ADH)
• Oxytocin (OT)
• Thyroid Stimulating Hormone
(TSH)
• Adrenocorticotropic hormone
(ACTH)
• Luteinizing hormone (LH)
• Follicle Stimulating Hormone
(FSH)
• Prolactin (PRL)
Anterior Pituitary Hormones
1. GH – stimulates cell growth & division
2. TSH – Stimulates thyroid gland
3. ACTH – Stimulates adrenal cortex
4. FSH/LH- Stimulates ovaries & testes
5. PRL – stimulates lactation in mammary glands
Posterior Pituitary Hormones
1. ADH – Promotes water reabsorption by kidneys
2. Oxytocin- Stimulates uterine contractions
Pineal gland
• Secretes hormone melatonin
– Regulates circadian rhythm (sleep/wake cycle)
Larynx Models
Thyroid Gland
Larynx Model
Posterior View
Parathyroid Glands
Thyroid Gland Hormones:
1. T3 & T4 = increases metabolism
2. Calcitonin = promotes bone deposition
• Removes Calcium from blood
Parathyroid Gland Hormones:
1. Parathyroid Hormone (PTH) = Promotes bone resorption
• Increases blood
Kidney
Adrenal
Glands
Ovaries
Kidney
Adrenal Gland
Cortex
medulla
Adrenal Medulla
Epinephrine (adrenaline) & Norepinephrine
•“Fight or Flight” hormones
• Stress Response
Adrenal Cortex (Steroid Hormones)
Aldosterone: Increases sodium reabsorption by kidneys
Cortisol: Gluconeogenesis
• Glucose synthesis from noncarbohydrates
Sex Hormones: supplement gonads
Kidneys
Erythropoietin
• Stimulates RBC production
Pancreas
Pancreatic islets
(Isets of Langerhans)
Alpha Cells
Glucagon
Beta Cells
Insulin
Delta Cells
Somatostatin
Pancreas hormones
• Glucagon: Raises blood glucose
– Gluconeogenesis
– Glycogenolysis
• breakdown of glycogen into glucose
• Insulin: Lowers blood glucose
– Promotes cellular uptake of glucose
Thymus
Secretes Thymosin: Promotes T-cell maturation
• Ovaries – secretes
estrogen/progesterone
• Testes – secretes
testosterone
Estrogen, Progesterone, and
Testosterone = steroid hormones
Left Subclavian vein
Thoracic Duct
Right Subclavian Vein
Right Lymphatic Duct
Cervical Lymph nodes
Axillary Lymph nodes
Abdominal (Mesenteric)
Lymph Nodes
Inguinal Lymph Nodes
Supratrochlear
Lymph Nodes
Thoracic
Lymph Nodes
Tonsils
Appendix
• Thought to serve as a lymphatic organ
Thymus gland & Spleen
Thymus gland – Development of T lymphocytes
Spleen – removes viruses, bacteria,
and old RBC from circulation
Lymph Node Slide
Cortex
medulla
Nodule
• Cortex = Nodules of B-Cell lymphocytes
• Medulla = T-Cell Lymphocytes & Macrophages
Spleen
Red
Pulp
White
Pulp
Red Pulp – Composed of red blood cells
White Pulp – Composed of white blood cells