Endocrine Quiz 2

Place the steps of the RAAS in the proper order.

1 decreased blood volume, pressure or sodium 2 release of renin from kidneys 3 production of angiotensin I 4 production of angiotensin II 5 release of Aldosterone

Calcitonin is released from the follicular cells of the thyroid gland when calcium levels in the blood fall below normal.

FALSE

Elevated cortisol levels (above normal) will increase the production of CRH by the hypothalamus and ACTH by the anterior pituitary, because of negative feedback.

FALSE

Glucagon stimulates glycogenesis and lipogenesis.

FALSE

hGH stimulates the release of insulin-like growth factors (IGFs) and raises blood glucose levels.

FALSE

Match the following hormones with their primary functions.

LH ovulation Prolactin breast growth and development T3 increased basal metabolic rate ADH water conservation

Active Vitamin D, known as calcitriol, promotes the absorption of dietary calcium from the small intestine.

TRUE

Human growth hormone and Cortisol stimulate glycogenolysis and lipolysis in order to increase blood glucose levels and provide alternate fuels.

TRUE

Insulin release is stimulated by increased levels of glucose in the blood stream following a meal.

TRUE

Parathyroid hormone stimulates osteoclasts, and increases reabsorption of calcium ions in the kidneys, thus increasing blood calcium levels.

TRUE

Which of the following statements is FALSE?

Thyroid hormones are made from the amino acid tryptophan

Choose the CORRECT statement:

c. Glucagon is referred to as the "starvation or fasting" hormone

Which of the following is CORRECTLY paired?

cardiac atria / ANP

Match the following hormones with their sites of secretion.

hypothalamus ADH ( anti diuertic hormone) anterior pituitary ACTH, GH (adreno corticotropic hormone & growth hormone) pancreas glucagon heart ANP (atrial naturetic peptide) pineal gland melatonin

Testosterone

increases muscle mass

Calcitonin inhibits the activity of ______________ cells in bone, decreasing the release of calcium into the extracellular fluid.

osteoclasts

A patient presents with fatigue, lower than normal body temperature, and lower than normal blood pressure. Blood test results included low T3 and T4, but an elevated TSH. What type of thyroid dysfunction does this patient most likely have?

primary hypothyroidism

Which of the following is TRUE?

steroid hormones are made from cholesterol