Endocrine System Sections 3-4

The thyroid gland has a distinctive shape. What is it?

• Oval

• Square

• Butterfly

• Star

Calcitonin is responsible for ______ the calcium levels in the blood.

• increasing

• reducing

• stabilizing

• eliminating

What happens to calcium from the blood when the thyroid gland produces calcitonin?

• It is absorbed into bones

• It is released from bones

• It is converted to glucose

• It is excreted in urine

Fill in the blank: When calcium levels are too high, the thyroid gland produces ______.

• PTH

• Calcitonin

• Insulin

• Glucagon

What role do osteoclasts play in calcium regulation?

• Absorb calcium into bones

• Release calcium from bones

• Convert calcium to another form

• Excrete calcium

What is the primary function of PTH in calcium regulation?

• Decrease blood calcium

• Increase blood calcium

• Convert calcium to another form

• Excrete calcium

Fill in the blank: The adrenal glands sit atop each ______.

• Liver

• Kidney

• Lung

• Heart

Fill in the blank: The adrenal medulla releases hormones that increase ______ rate.

• Heart

• Metabolic

• Growth

• Sleep

What are the two types of glands present in the pancreas?

• Exocrine and Endocrine

• Endocrine and Adrenal

• Exocrine and Pituitary

• Adrenal and Pituitary

The skin produces Vitamin D, which allows the digestive system to absorb ________ from food.

• Iron

• Calcium

• Potassium

• Sodium