$$GFR = (Urine\;Concentration \times Urine\;Flow\;Rate) / Plasma\;Concentration$$

Question 1

Which of the following best describes the role of the hypothalamus in endocrine control?

Accepted Answer

It produces releasing and inhibiting hormones that control the anterior pituitary gland.

Question 2

A patient presents with symptoms of hypersecretion of cortisol. Which endocrine gland is most likely affected?

Accepted Answer

Adrenal cortex

Question 3

Which equation correctly represents cardiac output ($$CO) $$and its relationship to heart rate ($$HR) $$and stroke volume ($$SV$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Question 4

During exercise, which physiological change occurs in the cardiovascular system to meet increased oxygen demand?

Accepted Answer

Increase in cardiac output and vasodilation of skeletal muscle arteries

Question 5

Which of the following is a correct description of the pulmonary circuit?

Accepted Answer

It transports deoxygenated blood from the right ventricle to the lungs.

Question 6

A patient with anemia is found to have a low hematocrit. Which component of blood is most directly affected?

Accepted Answer

Red blood cells (erythrocytes)

Question 7

Which of the following best explains the difference between innate and adaptive immunity?

Accepted Answer

Innate immunity provides immediate, non-specific defense, while adaptive immunity is specific and develops over time after exposure to antigens.

Question 8

Which of the following cells are primarily responsible for cellular immunity?

Accepted Answer

T cells

Question 9

A patient receives an injection of antibodies against hepatitis B. This is an example of which type of immunity?

Accepted Answer

Passive immunity

Question 10

Which of the following best describes the role of the alveolar-capillary membrane in respiration?

Accepted Answer

It facilitates the diffusion of oxygen and carbon dioxide between alveoli and capillaries.

Question 11

Which of the following is a correct sequence of events in the mechanical movement of the GI tract?

Accepted Answer

Peristalsis, segmentation, absorption

Question 12

Which enzyme is primarily responsible for the breakdown of proteins in the stomach?

Accepted Answer

Pepsin

Question 13

Which formula correctly represents the calculation of glomerular filtration rate ($$GFR) in $$the kidneys?

Accepted Answer

$$GFR = (Urine\;Concentration 	imes Urine\;Flow\;Rate) / Plasma\;Concentration$$

Question 14

A patient with diabetes insipidus has a deficiency of which hormone, and what is the primary effect on the urinary system?

Accepted Answer

Antidiuretic hormone (ADH); increased urine output

Question 15

Which of the following best describes the process of spermatogenesis?

Accepted Answer

The formation of sperm cells in the seminiferous tubules of the testes

Question 16

Which hormone is primarily responsible for the regulation of the menstrual cycle and is produced by the ovaries?

Accepted Answer

Estrogen

Question 17

A patient is found to have a blockage in the hepatic portal vein. Which process is most likely to be affected?

Accepted Answer

Transport of nutrients from the digestive tract to the liver

Question 18

Which of the following is a correct description of the role of the kidney in acid-base balance?

Accepted Answer

The kidney excretes hydrogen ions and reabsorbs bicarbonate to regulate blood pH.

Question 19

Which of the following best explains the difference between systolic and diastolic blood pressure?

Accepted Answer

Systolic pressure is the pressure in the arteries during ventricular contraction; diastolic pressure is during ventricular relaxation.

Anatomy & Physiology II Laboratory Syllabus and Study Guide

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