Endocrine System

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Endocrine System

• Presented by
• David Ehlers

2
Parts of the Endocrine System
3
The Functions

• Adrenal glands- Produces hormones such as sex
  hormones.
• Hypothalamus- Controls autonomic Functions
• Pituitary- Controls functions of other endocrine
  glands
• Pancreas- helps with the digestion and hormone
  production
• Pineal body- Produces the hormone melatonin.

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The Functions

• Thyroid Gland- Takes iodine in foods and turns it
  into thyroid Hormones
• Thymus- Destroys abnormal cells
• Adrenal Glands- works with the hypothalamus and
  pituitary gland.
• Ovaries- Contains egg cells necessary for
  reproduction
• Testicles- Produces testosterone and sperm

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How Hormones Work

• Hormones are chemical messengers that travel
  throughout the body making processes
• Growth
• Metabolism
• Fertility
• Alters with Behavior
• Makes your body change
• Especially during puberty

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Negative Feedback Loop

• The negative feedback loop in the endocrine
  system prevents the system from becoming
  overactive.

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Blood Glucose Level

• The body uses blood sugar levels using two
  mechanisms
• Hunger
• Insulin
• Body forms glucose when it breaks foods that a
  person eats
• Then turns into a usable form of energy
• Glucose is a main energy source for the body

• Measuring the amount of blood glucose in the
  blood helps evaluate
• How the body breaks foods down into energy
• How the liver is working
• How the organs in the body help regulate blood
  glucose

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Diseases

• Crushing Syndrome- A lot of glucocorticoid
  hormones in the body
• Type 1 Diabetes - When the pancreas fails to
  produce enough insulin

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Vocabulary

• Hormone- Substance produced by a tissue and
  carried by the bloodstream to effect growth or
  metabolism
• Thyroid gland- Two-lobed gland
• Adrenal gland- Either of tow small glands,
  located above each kidney
• Pancreas- A long irregularly shaped gland
• Pineal glands- Small cone shaped organs in the
  brain.
• Parathyroid gland- Small kidney shaped glands
  that lie in pairs
• Thymus- Small glandular organ behind the breast
  bone

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Vocabulary

• Testis- Together with the scrotum
• Ovary- The female reproductive organ that
  produces ova
• Pituitary gland- a small oval endocrine gland
  attached to the vertebrate brain
• Hypothalamus- Part of the brain that regulates
  temperature
• Epinephrine- An adrenal hormone that constricts
  blood vessels
• Insulin-a pancreatic hormone that regulates
  metabolism of carbohydrates and fats
• Glucagons- a pancreatic hormone that raises
  blood sugar levels

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Vocabulary

• Homeostasis- the ability of an organism of cells
• Norepinephrine- mediates chemical communication
  in the sympathetic nervous system
• Growth Hormone- A growth hormone that you go
  through during puberty