$GFR = K_f \times (P_{GC} - P_{BS} - \pi_{GC})$

Question 1

Which of the following is NOT a basic function of the lymphatic system?

Accepted Answer

Production of red blood cells

Question 2

A patient presents with swelling in the lower limbs due to blocked lymphatic vessels. Which process is most directly impaired?

Accepted Answer

Return of interstitial fluid to the circulatory system

Question 3

Which structure is responsible for draining lymph from the right thoracic duct?

Accepted Answer

Right subclavian vein

Question 4

Which hormone is released from the adrenal cortex and is primarily responsible for sodium reabsorption in the kidneys?

Accepted Answer

Aldosterone

Question 5

A patient with diabetes mellitus is experiencing excessive urination. Which process in the nephron is most likely impaired?

Accepted Answer

Tubular reabsorption of glucose

Question 6

Which equation correctly represents the calculation of glomerular filtration rate (GFR)?

Accepted Answer

$GFR = K_f 	imes (P_{GC} - P_{BS} - \pi_{GC})$

Question 7

Which of the following best describes the role of surfactant in the respiratory system?

Accepted Answer

It decreases surface tension in alveoli, preventing collapse during exhalation.

Question 8

During inspiration, which pressure change occurs in the thoracic cavity?

Accepted Answer

Intrapulmonary pressure decreases below atmospheric pressure

Question 9

Which hormone is secreted by the posterior pituitary and increases water reabsorption in the kidneys?

Accepted Answer

Antidiuretic hormone (ADH)

Question 10

A patient is experiencing respiratory acidosis. Which of the following is the most likely cause?

Accepted Answer

Hypoventilation leading to increased $CO_2$ retention

Question 11

Which of the following best explains the negative feedback control of ventilation in response to increased blood carbon dioxide?

Accepted Answer

Chemoreceptors in the medulla detect increased $CO_2$ and stimulate increased ventilation

Question 12

Which of the following is a correct sequence for lymph flow from the tissues back to the bloodstream?

Accepted Answer

Lymphatic capillaries → lymphatic vessels → lymphatic trunks → lymphatic ducts → subclavian vein

Question 13

Which of the following is a function of the secondary lymphoid organs?

Accepted Answer

Site of immune response activation

Question 14

Which of the following best describes the effect of aldosterone on potassium and sodium levels in the nephron?

Accepted Answer

Increases sodium reabsorption and increases potassium secretion

Question 15

Which of the following structures is NOT part of the conducting division of the respiratory system?

Accepted Answer

Alveoli

Question 16

Which equation best represents the relationship between pressure, flow, and resistance in the respiratory system?

Accepted Answer

$Flow = \frac{\Delta P}{R}$

Question 17

Which of the following is a correct description of the role of the hypothalamus in endocrine regulation?

Accepted Answer

It produces releasing and inhibiting hormones that control the anterior pituitary

Question 18

A patient with low blood pressure is found to have increased secretion of renin. Which pathway is most likely activated?

Accepted Answer

Renin-angiotensin-aldosterone system (RAAS)

Question 19

Which of the following best explains the difference between the primary and secondary bronchi?

Accepted Answer

Primary bronchi supply each lung, while secondary bronchi supply each lobe of the lung

Question 20

Which of the following is a correct description of the effect of antidiuretic hormone (ADH) on the nephron?

Accepted Answer

Increases water reabsorption in the collecting duct

BIOL 2202 Exam 2 Study Guide: Lymphatic, Endocrine, Respiratory, and Urinary Systems

Study Guide - Practice Questions