Endocrine Hormones & Diseases

Calcitonin is a hormone that lowers blood calcium levels by causing calcium uptake in bones. Parathyroid hormone raises blood calcium levels by causing bones to release calcium into the bloodstream. Based on your understanding of hormones, homeostasis, and feedback loops, which hormone will be released if blood calcium levels are low?

• Calcitonin
• Parathryoid hormone
• Glucagon
• Insulin

This hormone from the pancreas causes cells to take up glucose from the bloodstream.

• Insulin
• Glucagon
• Cortisol
• Epinephrine

Which hormone will be secreted in the following situation?

• Insulin
• Glucagon
• Melatonin
• Adrenaline

Antidiuretic hormone helps the body retain water. It does this by  causing the kidney to reabsorb more water back into the bloodstream. In which situation will your body most likely produce ADH?

• When you're very sleep
• When you are fully hydrated and sipping a cool glass of water
• When you are swimming in shark infested waters
• When you are in the Sahara desert in the summer and your canteen has been empty for hours

How might antidiuretic hormone (ADH) secretion be regulated by negative feedback loop?

• ADH seretion will be inhibited by the presence of a cut
• ADH secretion will incraese when the body has high concentrations of water in the blood
• ADH secretion will be controlled by the adrenal glands and will slow down during stressful situations
• ADH secretion will be inhibited when the body has a high concentration of water in the blood

Which structure within the brain controls the pituitary gland?

• the pineal gland

• thymus gland

• thyroid gland

• hypothalamus

A hormone antagonist is one that has the opposite function. The hormone antagonist of insulin is _________

• glucagon

• gastrin

• secretin

• calcitonin

Tags

NGSS.HS-LS1-3

Calcitonin decreases calcium in the blood while Parathyroid hormone works antagonistically. What is the function of PTH (Parathyroid Hormone)?

• To increase the amount of calcium in the blood so that it is available for the bones

• To decrease the amount of calcium in the blood so that it is available for the bones

• To break down bones to release calcium into the blood

• To build up bones

Tags

NGSS.HS-LS1-3

This hormone maintains circadian rhythms and is most active during sleep

• melanin

• melatonin

• Thymic factor hormone

• Thyroid stimulating hormone

Tags

NGSS.HS-LS1-3

What is the fight or flight hormone?

• Cortisol 
• Epinephrine and Norepinphrine 
• Testorerone 
• Aldosterone