Endocrine System and Hormones Quiz

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Questions and Answers

Which system functions to keep all parts of the body running smoothly along with the endocrine system?

  • Respiratory system
  • Nervous system (correct)
  • Circulatory system
  • Muscular system

What is a unique characteristic of hormone messengers compared to nerve impulses?

  • Only work in the brain
  • Carried by blood vessels
  • Fast-acting and short-lived
  • Slow-acting and long-lasting (correct)

Which statement accurately describes endocrine glands?

  • They deliver substances to specific locations in the body through tubes
  • They are only found in the brain
  • They have ducts to transport their secretions
  • They secrete hormones directly into the bloodstream or fluid around cells (correct)

What do exocrine glands, like sweat glands, mucus glands, and salivary glands, use to transport their secretions?

<p>Ducts (C)</p> Signup and view all the answers

In addition to endocrine glands, which other organs or tissues have cells that can secrete hormones?

<p>Brain, stomach, small intestine (B)</p> Signup and view all the answers

What is the role of the endocrine system's exocrine function?

<p>To produce digestive enzymes and deliver them to the small intestine (B)</p> Signup and view all the answers

How are hormones destroyed after they have performed their function?

<p>In the liver (B)</p> Signup and view all the answers

What is the relationship between a hormone and a receptor of a target cell described as?

<p>Lock and key (C)</p> Signup and view all the answers

Which mechanism increases the deviation of the hormone level from normal as needed by the body in a certain situation?

<p>Positive feedback (A)</p> Signup and view all the answers

What role does the liver play in regulating hormone levels?

<p>Breaking down hormones after they fulfill their purpose (D)</p> Signup and view all the answers

What is the primary function of the hypothalamus in the endocrine system?

<p>Controlling the pituitary gland to release hormones (A)</p> Signup and view all the answers

Which hormone released by the pituitary gland is responsible for reducing feelings of pain?

<p>Endorphins (B)</p> Signup and view all the answers

Where is the thyroid gland located in the human body?

<p>Under the larynx (D)</p> Signup and view all the answers

Which of the following hormones secreted by the thyroid gland contains iodine and plays a crucial role in metabolism regulation?

<p>Triiodothyronine (D)</p> Signup and view all the answers

What is the main function of calcitonin, a hormone secreted by the thyroid gland?

<p>Lower blood calcium levels (A)</p> Signup and view all the answers

Which gland produces a hormone that has opposite effects to calcitonin in regulating blood calcium levels?

<p>Parathyroid gland (A)</p> Signup and view all the answers

Where is the thymus located in the body?

<p>Just behind the breastbone (A)</p> Signup and view all the answers

Which part of the adrenal gland secretes adrenaline responsible for coping with short-term physical and emotional stress?

<p>Adrenal medulla (D)</p> Signup and view all the answers

What is the primary function of the outer adrenal cortex in the adrenal glands?

<p>Regulate body's metabolism (A)</p> Signup and view all the answers

Apart from its digestive role, what function does the pancreas serve as an endocrine organ?

<p>Produces insulin and glucagon (C)</p> Signup and view all the answers

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