1. chemical substance secreted by a gland to trigger a specific effect in an organ or tissue

1. hormone that reduces blood calcium levels

1. gland that regulates glucose metabolism by secreting hormones such as glucagon and insulin

1. characterized by excessive thirst and frequent urination, and bone weakening due to abnormal blood calcium levels

2. organ that secretes hormones to regulate a process or activity

2. hormone that enables mammals, usually females, to produce milk

2. gland that controls other glands such as thyroid, adrenals, ovaries, and testicles by secreting hormones such as TSH and FSH.

2. characterized by the nervous or irritable state due to high levels of thyroxine in the body

3. event or change of conditions that evokes a functional response

3. hormone that stimulates glycogen formation to reduce blood glucose level

3. gland that controls growth and development by secreting the hormone thyroxine.

3. characterized by thirst, frequent urination, hunger, fatigue and blurred vision due to high blood glucose levels

4. organ system made of glands that secrete hormones to regulate metabolism, growth, and development

4. hormone that stimulates glycogen breakdown to increase blood glucose level

4. gland that regulates blood sugar, burn protein and fat, reaction to stress by producing hormones such as cortisol and adrenaline.

4. characterized by fatigue and weight gain due to low levels of thyroxine in the body

5. biological function that maintain internal and external balance in organisms

5. hormone secreted by thyroid to control cellular growth and development

5. gland that connects nervous and endocrine systems secreting hormones such as oxytocin, gonadotropin and thyrotropin related hormones

5. characterized by muscular weakness due to abnormal leveles of thyroid-related hormones