4 Endocrine System Function The Endocrine System is a collection of glands that secretes different hormones for the various functions and chemical reactions occurring within the body.Main function – to maintain a stable environment within your body or homeostasis.Major function – promoting the structural change of the body.
5 Structural and Functional connection between Endocrine and Nervous System Structure – Some Endocrine glands contain nerve tissuesChemical some substances, such as adrenaline, act as both hormones and neurotransmitters.Function – body systems work together in controlling physiological processes.Along with the Nervous System, the Endocrine System provides integration of the different organs and tissues, If one does not work, the other organs malfunction. too
6 Principal Parts of the Endocrine System Endocrine glands that secrete hormones. Although there are eight major endocrine glands scattered throughout the body, they are still considered to be one system because they have similar functions, similar mechanisms of influence, and many important interrelationships.Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs. They work slowly, over time, and affect many different processes, includingGrowth and developmentMetabolism Sexual functionReproductionMood
8 Glands and their Hormones There are 8 Major Glands:Hypothalamus glandsPituitary glandParathyroid GlandThyroid GlandPancreasOvariesTestes
9 Hypothalamus GlandIs located at the base of specialized cells that are located in the lower central part of the brainIs the main link between the endocrine and nervous system
10 Pituitary GlandIs located at the base of the brain just below the hypothalamus.Is known as the master glandSecretes hormones on the basis of the emotional and seasoal changesDivided into two part: the anterior lobe and the posterior lobe
11 Anterior Lobe – regulates the activity of the thyroid, adrenals, and the reproductive glands. Produce hormones:Growth Hormone – Growth f the bones and tissuesProlactin – production of milkThyrothropin – stimulate thryoid gland toproduce thyroid hormonesCarticotropin – Stimulate adrenal glands tocertain hormones
12 Posterior Lobe – Of the pituitary gland produces antidiuretic hormone that helps to control the water balance in the bodyProduce Hormone:Endorphins – a hormone that signal thereprocutive glands to secrete hormonesOxytoxins – trigger the contractions of theuterus in the woman who is in labor
13 Is situated in the front part of the lower neck that is shaped like a bowtie or a butterfly Produce hormone:Thyroxine – control the rate at which the celluse up energy from foof for production ofenergyCalcitonin – growth in bones and thedevelopment of the brainThyroid Gland
14 Regulate calcium and phosphate balance in the blood plasma Produce Hormone:Calcitinin – regulates the level of calcium in bloodproduced by the thyroidParathyroid Gland
15 Located on top of each of the kidney ; has two parts which are: Cortex (outer portion)Cortisol – that regulates the metabolism (salt andwater levels) proteins, fats, and carbohydratesMedulla(inner portion)Adrenaline – are emergency glands and it increasesthe blood pressure and heart rate when the body isunder stressAdrenal Gland
16 These glands are associatd with the digestive system of the human body These glands are associatd with the digestive system of the human body. They secrete digestive enzymesProduce HormonesInsulin – controls the storage of sugar in theliver and sugar breakdown in tissuesGlucagon – converts glycogen to glucose andthis process occurs when blood glucoseconcentration is slowPancreas
17 Sex GonadsMale and female reproductive system contains glands; male have prostate gland and Cowper's gland while female have glands that are found in the uterus that lines the mucus membrane in the uterusHormone produceTestesTestosterone – sex hormones of the maleOvariesEstrogen – hormone for sexual maturation(during puberty)Progesterone – involved in the regulation of menstrual cycle
18 Pineal glandIs located in the center of the brain. MELATONIN is secreted by this gland that helps regulate the sleeping cycle of person
19 Disorders of the Endocrine System Diabetes insipidusis caused by deficient pituitary secretion of vasopressin (also called antidiuretic hormone or ADH), or by the kidneys' inability to respond to the vasopressin hormone. The kidneys' inability to respond to vasopressin can be caused by various drugs and diseases. The reasons for the pituitary's decreased secretion of vasopressin include pituitary tumor, pituitary cyst, head trauma, and unknown factors. The following discussion pertains to deficient secretion of vasopressin by the pituitary gland..