Endocrine System

What is the main function of the endocrine system?

• It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

• It creates electrical messages that are sent around the body to maintain homeostasis.

• It maintains the correct level of oxygen in the body to maintain homeostasis.

• It releases waste from the body to maintain homeostasis.

The "master gland" is known as the __________________.

• thyroid gland.

• adrenal gland.

• pancreas.

• pituitary gland.

The gland that stimulates body metabolism

• Thyroid
• testes
• ovary
• adrenal

The adrenal glands release adrenaline to help the body regulate _________________.

• diseases

• body temperature.

• stress.

• hormones.

Which of the following are chemicals that travel in the blood and cause changes in different parts of the body?

• Hormones

• Glands

• Parathyroid

• Adrenal Gland

Hormone regulation operates under which type of feedback mechanism?

• positive feedback

• negative feedback

• zero feedback

• Hormones are not regulated

What is the name of the structure that connects the pituitary gland to the brain/central nervous system?

• Hypophysis
• Hypothalamus
• Pancreas
• Adrenal glands

Diabetes type I (mellitus) is caused by a lack of what pancreatic hormone:

• ADH
• Glucocorticoids
• Insulin
• Glucagon

Name the two hormones produced by the thyroid gland.

• Epinephrine and norepinephrine
• ADH and oxytocin
• Calcitonin and thyroxine
• Growth hormone and cortisol

What usually causes hypothyroidism?

• Increased secretion of the thyroxine hormone
• No secretion of the thyroxine hormone by the thyroid
• Increased secretion of the growth hormone by the pituitary gland