Endocrine Part 3

•This is also a thyroid hormone- for bones

• Calcitonin

• T3

• T4

• TSH

Answer explanation

•Greatly active in children, less effect in adults

Function of Calcitonin (Remember it TONEs)

• osteoclast inhibition, osteoblast stimulation

• osteoclast stimulation , osteoblast inhibition

What hormone is an antagonist to Parathyroid Hormone?

• Calcitonin

• Calcitriol

• Calcium

Where is the location of the parathyroid glands?

• posterior thyroid gland (piggy horseback)

• anterior thyroid gland (piggy horseback)

• posterior thymus gland (piggy horseback)

What are the cells that release calcitonin called? choose all that apply

• C Cells

• Parafollicular cells

• Follicular

• T Cells

Answer explanation

C Cells = Parafollicular cells

Name the endocrine gland

•Small round tissue, usually four in total, two on the left thyroid lobe and two on the right

• parathyroid

• thymus

• adrenals

• pineal

In the Parathyroid Gland Epithelial cells called ________ produce PTH (Parathyroid Hormone)

• principal cells

• vice principal cells

• autocratic cells

• c cells

Parathyroid gland causes increased osteoclasts. What is the result?

• –Causes bone destruction

  •This causes calcium to be released into the blood

• –Decreases kidney excretion of calcium into the urine

  •This increased calcium retained in the blood

Parathyroid gland has Effects on kidneys function. What are they?

• –Causes bone destruction

  •This causes calcium to be released into the blood

• –Decreases kidney excretion of calcium into the urine

  •This increased calcium retained in the blood

• –Kidneys release the hormone CALCITRIOL (CAL-sih-TRY-ol) which is active Vitamin D

  •This increases Calcium into the blood by increased absorption of calcium from the GI tract

•Sunlight produces ______ in our skin

• Vitamin D

• Vitamin C

• Vitamin B12