$$\text{Rate} = \text{Concentration} \times \text{Metabolic Clearance Rate}$$

Question 1

Which of the following best describes the connection between the hypothalamus and the posterior pituitary?

Accepted Answer

Neurosecretory cells from hypothalamus project directly to posterior pituitary and release hormones into capillaries.

Question 2

Which hormone is released by the parathyroid gland and what is its primary effect?

Accepted Answer

Parathyroid hormone (PTH); increases blood calcium levels

Question 3

A patient presents with excess cortisol due to a pituitary tumor secreting too much ACTH. Which type of secretion disorder is this?

Accepted Answer

Secondary secretion disorder

Question 4

Which of the following is a tropic hormone released from the anterior pituitary?

Accepted Answer

Adrenocorticotropic hormone (ACTH)

Question 5

Which hormone is responsible for regulating the sleep-wake cycle and where is it produced?

Accepted Answer

Melatonin; pineal gland

Question 6

A patient with acromegaly has excess growth hormone during adulthood. This is an example of:

Accepted Answer

Hypersecretion

Question 7

Which of the following best describes a negative feedback loop in endocrine regulation?

Accepted Answer

A downstream hormone inhibits the release of an upstream hormone.

Question 8

Which hormone is released in response to stress and mobilizes energy sources?

Accepted Answer

Cortisol

Question 9

Which of the following is a primary endocrine organ?

Accepted Answer

Thyroid gland

Question 10

Which hormone is secreted by the pancreas to decrease blood glucose levels?

Accepted Answer

Insulin

Question 11

If a hormone is hydrophilic and not bound to a carrier protein, what percentage of it is bioavailable?

Accepted Answer

$$100\%$$

Question 12

Which of the following is an example of hormone antagonism?

Accepted Answer

Insulin lowers blood glucose while glucagon raises it

Question 13

Which equation best represents the rate of hormone removal from the blood?

Accepted Answer

$$	ext{Rate} = 	ext{Concentration} 	imes 	ext{Metabolic Clearance Rate}$$

Question 14

A patient with Type 1 Diabetes has no insulin secretion from the pancreas. This is an example of:

Accepted Answer

Hyposecretion

Question 15

Which hormone is released from the adrenal medulla and is responsible for the 'fight or flight' response?

Accepted Answer

Epinephrine

Question 16

Which of the following is an example of hormone permissiveness?

Accepted Answer

Thyroid hormone increases the number of receptors for epinephrine on target cells

Question 17

Which hormone is secreted by the kidneys and stimulates red blood cell formation?

Accepted Answer

Erythropoietin

Question 18

Which of the following best describes the effect of calcitonin?

Accepted Answer

Decreases blood calcium levels

Question 19

Which hormone is released from the heart and is important in blood pressure regulation?

Accepted Answer

Atrial natriuretic peptide (ANP)

Question 20

Which of the following is a secondary endocrine organ?

Accepted Answer

Skin

Endocrine System: Anatomy & Physiology Study Notes

스터디 가이드 - 연습 문제