Question 1

Which structure in the inner ear is primarily responsible for detecting changes in angular rotation, such as when you turn your head quickly?

Accepted Answer

Semicircular canals

Question 2

A patient presents with symptoms of hyperthyroidism, including increased metabolic rate, weight loss, and heat intolerance. Which hormone is most likely elevated, and where is it produced?

Accepted Answer

Thyroxine (T4); thyroid gland

Question 3

During the General Adaptation Syndrome, which hormone is released in response to stress, and what is its primary function?

Accepted Answer

Cortisol; increases blood glucose and suppresses immune response

Question 4

Which of the following best describes the function of glucocorticoids, and where are they produced?

Accepted Answer

Regulate blood glucose and suppress inflammation; adrenal cortex

Question 5

A patient with hyposecretion of glucocorticoids may develop which condition?

Accepted Answer

Addison's disease

Question 6

Which hormone is secreted by the anterior pituitary and stimulates the thyroid gland?

Accepted Answer

Thyroid-stimulating hormone (TSH)

Question 7

A deficiency of platelets can lead to which clinical condition?

Accepted Answer

Thrombocytopenia

Question 8

Which white blood cell type is most numerous in a healthy adult?

Accepted Answer

Neutrophils

Question 9

Erythropoietin is produced in response to which physiological condition, and what is its primary function?

Accepted Answer

Low oxygen levels; stimulates RBC production

Question 10

Which of the following equations correctly represents cardiac output ($$CO) in $$terms of stroke volume ($$SV) $$and heart rate ($$HR$$)?

Accepted Answer

$$CO = SV 	imes HR$$

Question 11

During the cardiac cycle, which event is associated with the closure of the atrioventricular (AV) valves?

Accepted Answer

Ventricular systole

Question 12

Which layer of the heart is responsible for the contractile function and contains the cardiac muscle cells?

Accepted Answer

Myocardium

Question 13

A patient with left-sided heart failure is most likely to develop which complication?

Accepted Answer

Pulmonary hypertension

Question 14

Which of the following best describes Starling’s law of the heart?

Accepted Answer

The greater the preload, the greater the force of contraction

Question 15

Which phase of hemostasis involves the conversion of fibrinogen to fibrin?

Accepted Answer

Coagulation

Question 16

A patient with Type 2 diabetes mellitus is at risk for which acute complication characterized by hyperglycemia, dehydration, and altered mental status?

Accepted Answer

Hyperosmolar hyperglycemic state (HHS)

Question 17

Which equation correctly represents stroke volume ($$SV) in $$terms of end-diastolic volume ($$EDV) $$and end-systolic volume ($$ESV$$)?

Accepted Answer

$$SV = EDV - ESV$$

Question 18

Which of the following is a function of aldosterone, and where is it produced?

Accepted Answer

Increases sodium reabsorption; adrenal cortex

Question 19

Which part of an ECG corresponds to ventricular depolarization?

Accepted Answer

QRS complex

Question 20

A patient with a nodal block affecting the AV node is at risk for which of the following?

Accepted Answer

Complete heart block (third-degree)

ANP Study Guide: Sensory, Endocrine, and Cardiovascular Systems

Study Guide - Practice Questions

Study Guide - Flashcards