U2L7 Quiz Review - Calcium Feedback

Which hormone is released when blood calcium levels rise above homeostasis?

• Calcitonin

• PTH

• Endorphins

• Calcitriol

Tags

NGSS.HS-LS1-3

Name of the hormone that increases the levels of calcium in the blood.

• Calcitonin
• Calcium
• Phosphatase
• Parathyroid

What type of cell does parathyroid hormone stimulate

• osteoblasts

• osteoclasts

• osteocytes

What type of cells does calcitonin stimulate.

• osteoblasts

• osteoclasts

• osteocytes

What type of feedback loop is the calcium feedback loop?

• positive

• negative

• both, depending on what half of the loop you are looking at

Tags

NGSS.HS-LS1-3

If my blood calcium levels fall, what effector will the brain stimulate?

• osteoblasts

• osteoclasts

• thyroid gland

• parathyroid gland

Tags

NGSS.HS-LS1-3

If my blood calcium levels rise, what effector will the brain stimulate?

• osteoblasts

• osteoclasts

• thyroid gland

• parathyroid gland

Tags

NGSS.HS-LS1-3

Reorder the following ... from calcium being TOO LOW and then TOO HIGH!

• PARATHYROID HORMONE IS CUT OFF WHICH CAUSES CALCIUM TO BE STORED INTO THE BONE!

• PARATHYROID HORMONE IS SECRETED WHICH CAUSES OSTEOCLASTS TO BREAK DOWN BONE AND RELEASE CA2+!

• THYROID GLAND RELEASES CALCITONIN WHICH CAUSES OSTEOBLASTS TO DEPOSIT CALCIUM IN THE BONE!

• PARATHYROID HORMONE ALSO CAUSES MORE CA2+ to be absorbed from the intestines!

Tags

NGSS.HS-LS1-3

The body uses bone tissues as a reservoir for, and source of calcium, to maintain constant concentrations of calcium in the blood, muscle, and intercellular fluids

• True

• False

Tags

NGSS.HS-LS1-3

Which one of these body functions is helped by calcium?

• Helps our muscles to contract

• Helps keep our nerves healthy

• Helps build strong bones and teeth

• All of the choices