Endocrine

• The primary purpose of the endocrine system is to maintain homeostasis
• Hormones are transported in blood to target specific cells or tissues.

  True
• What does homeostasis refer to in the human body?

  Steady state of systems
• A healthy state maintained by constant adjustment is called homeostasis
• What does a gland produce, such as hormones, digestive juices, sweat, or tears?

  Substances
• The endocrine system, along with the nervous system, helps maintain homeostasis
• Endocrine glands release substances directly into the bloodstream.

  True
• Steps in how hormones work

  1️⃣ Endocrine glands receive a stimulus

  2️⃣ Hormones are secreted directly into the blood

  3️⃣ Hormones travel to target cells

  4️⃣ Hormones recognize target cells

  5️⃣ Target cells respond
• Match the major endocrine glands with their primary functions or hormones:

  Pituitary ↔️ Master gland, growth hormone

  Thyroid ↔️ Metabolism, thyroxine

  Parathyroid ↔️ Calcium levels

  Adrenal ↔️ Stress response, adrenaline

  Pancreas ↔️ Blood sugar regulation, insulin
• What are the three main types of compounds that hormones are derived from?

  Amino acids, steroids, fatty acids
• A negative feedback loop reverses changes detected by the body
• A positive feedback loop speeds up changes detected by the body.

  True
• Growth hormone is released directly from the pituitary gland.

  True
• What shape does the thyroid gland resemble?

  Butterfly
• The parathyroid gland regulates calcium levels in the blood
• The primary role of insulin and glucagon is to regulate blood glucose levels
• Where are the adrenal glands located?

  Above the kidneys
• What does insulin do to blood glucose levels?

  Lowers them
• Maintaining homeostasis is influenced by lifestyle factors
• Match the sex hormones with their primary sources:

  Testosterone ↔️ Testes

  Estrogen ↔️ Ovaries
• What are examples of lifestyle factors that can affect homeostasis?

  Poor nutrition, stress, stimulants