Unit 10: Endocrine System. Homework Assignment Go to my Anatomy website on schoolwires. Look for the “Unit 10 Feedback Loops” Powerpoint Print the “Feedback.

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Presentation transcript:

Unit 10: Endocrine System

Homework Assignment Go to my Anatomy website on schoolwires. Look for the “Unit 10 Feedback Loops” Powerpoint Print the “Feedback Loops Homework/Notes” slide Follow the directions and complete the concept map in pencil before you come to class. If you need help, come in to Intervention prior to your due date and I will help you figure out the concept map. Don’t just copy your friends because you will be asked to reproduce this at a later date Due:

Joke of the Day: EXERCISE Some motivation required

Unit 10: Endocrine System

Fight or Flight Response? Quick Review of Past Concepts: Where do we get our Energy? Foods that we eat! Food broken down into Glucose (used and stored) Can cells use Glucose for energy? Glucose converted into ATP energy or “cellular energy” What is the process called that converts glucose into ATP energy? Cellular Respiration or Aerobic Metabolism ATP

Fight or Flight Response What is the Fight or Flight Response? “a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival” Will you Fight? or will you Run? ATP

We will take a look at the Endocrine System and how it works first…..then we will revisit the “Fight or Flight” response in a short video

Endo: Crin: Endocrinology: Unit 10: Endocrine System Inside Secrete The study of endocrine glands and hormones “Inside secretions”

Endocrine and Nervous Systems Compared

Function: An internal system of glands that secrete hormones Endocrine System

Analogy: “Radio broadcast to a reception tower…” Gland “Radio Broadcast” Cell “Reception Tower”

Endocrine System Glands: “Broadcasters” Release chemical messages called Hormones into bloodstream

Endocrine System Hormones: “The Messages”  Effect the activity or behavior of other parts (target cells) of the body.

Endocrine System Receptors: “Reception Towers”  Chemical binding sites on Target Cells

Endocrine System Hormones:  How do Hormones affect the body? (a few examples)  Growth and Development  Reproduction  Sexual Characteristics  Energy usage and storage  Stress response

Endocrine System Epinepherine (Adrenaline): Increases heart rate and breathing; Adrenal Glands Insulin: Lowers blood sugar level; Pancreas Glucagon: Raises blood sugar level; Pancreas Melatonin: Biological clock; Pineal Gland Oxytocin: Contractions during childbirth, Breast feeding, “Cuddling”; Hypothalamus Testosterone: Male characteristics; Testes Estrogen: Female characteristics; Ovaries Progesterone: Maintains pregnancy; Ovaries Human Growth (HGH): Growth and Development; Pituitary Gland Serotonin: Mood, Appetite, Sleep, Memory, and Learning; Pineal Gland Dopamine: Pleasure/Pain, Addiction, Lust, Risk v. Reward, Emotions; Pituitary Gland Thyroxine: Regulates metabolism; Thyroid Cortisol: Stress; Adrenal Glands Endorphins: Pain block; Pituitary Gland Thymosin: Makes WBC’s lymphocytes; Thymus *Glucocorticoid: Regulates metabolism; Adrenal Glands *Mineralocorticoid: Controls mineral homeostasis; Adrenal Glands Hormone List

Endocrine System: Structure and Function

1. Pituitary gland 2. Hypothalamus 3. Pineal gland 4. Thymus 5. Thyroid gland 6. Parathyroid glands 7. Adrenal glands (suprarenal) 8. Pancreas 9. Testes (gonads) 10. Ovaries (gonads) Endocrine System Structures

Color the Structures 1. Pituitary gland : RED 2. Hypothalamus : ORANGE 3. Pineal gland : LIGHT BLUE 4. Thymus : YELLOW 5. Thyroid gland : BROWN 6. Parathyroid glands : WHITE 7. Adrenal glands : BLUE 8. Pancreas : BLACK 9. Testes : RED 10. Ovaries : RED

Fight or Flight Video

Hypothalamus Located at the base of the brain, Superior to Brainstem Maintains all Homeostasis in body. Not part of the Endocrine System but it controls the release of hormones from it. Part of the Brain that connects the Nervous System to the Endocrine System (Pituitary gland).

Pituitary Gland: Located at the base of brain Inferior to Hypothalamus “Pea” sized structure The “Boss” of the Endocrine System. Controls all other glands. Neurohypophysis: (Posterior Lobe of Pituitary Gland) “Store House” for hormones that were produced by the Hypothalamus

Located in Deep in center of Brain Maintains Circadian Rhythm (biological clock) Regulates reproductive hormones Pineal Gland

Adrenal Glands Located on top of the kidneys (suprarenal) “Fight or Flight” response Also produces steroid hormones like Glucocorticoids and Mineralocorticoids

Thymus Gland Located Posterior to Lungs Active during puberty then shrinks away.

Thyroid Gland Located in throat area surrounding Trachea Controls metabolism

Parathyroid Glands Located with the Thyroid in throat area Regulates Calcium levels

Pancreas Located Posterior to Stomach Regulates Blood Sugar

Testes Located in the pubic region Male Characteristics Testes are Gonads because they produce gametes (sperm)

Ovaries Located on each side of lower abdomen Female Characteristics Ovaries are Gonads because they produce gametes (ova)