Question 1

Which of the following best describes the primary focus of the Human Physiology Laboratory (PHY202L) course as outlined in the syllabus?

Accepted Answer

To develop an understanding of physiological processes in humans, including cell physiology and organ system function, and to apply this knowledge to clinical scenarios.

Question 2

A patient presents with symptoms of dehydration. Which physiological process is most directly responsible for maintaining fluid balance in the human body?

Accepted Answer

The function of the endocrine system, particularly the release of antidiuretic hormone (ADH).

Question 3

Which of the following equations correctly represents the calculation of cardiac output?

Accepted Answer

$$CO = HR 	imes SV$$

Question 4

During a laboratory experiment, a student observes that increasing the concentration of carbon dioxide in the blood leads to a decrease in blood pH. This is an example of which physiological principle?

Accepted Answer

Homeostatic regulation via negative feedback.

Question 5

A nurse is assessing a patient’s vital signs and notes a blood pressure of 150/95 mmHg. Which organ system is primarily responsible for long-term regulation of blood pressure?

Accepted Answer

The renal (urinary) system.

Question 6

Which of the following best explains why the nervous system can produce rapid responses to stimuli compared to the endocrine system?

Accepted Answer

Nerve impulses travel quickly along neurons, while hormones travel more slowly through the bloodstream.

Question 7

A patient with type 1 diabetes mellitus is unable to produce insulin. Which organ is primarily affected in this condition?

Accepted Answer

Pancreas

Question 8

Which of the following is the correct formula for calculating mean arterial pressure (MAP)?

Accepted Answer

$$MAP = \frac{1}{3} (SBP - DBP) + DBP$$

Question 9

A student is asked to explain the role of the sodium-potassium pump in maintaining the resting membrane potential of a neuron. Which statement is most accurate?

Accepted Answer

It actively transports 3 sodium ions out of the cell and 2 potassium ions into the cell, using ATP.

Question 10

Which of the following best describes the Frank-Starling law of the heart?

Accepted Answer

The greater the volume of blood entering the heart during diastole, the greater the volume ejected during systole.

Question 11

A patient is experiencing respiratory acidosis. Which of the following laboratory findings would you expect?

Accepted Answer

Increased blood $$CO_2$$ and decreased blood pH

Question 12

Which of the following scenarios best illustrates the concept of negative feedback in human physiology?

Accepted Answer

The release of insulin in response to high blood glucose, which lowers blood glucose levels.

Question 13

A patient with chronic kidney disease is unable to excrete sufficient hydrogen ions. What acid-base imbalance is most likely to develop?

Accepted Answer

Metabolic acidosis

Question 14

Which of the following best describes the role of hemoglobin in the blood?

Accepted Answer

It transports oxygen from the lungs to the tissues.

Question 15

A nurse is caring for a patient with a spinal cord injury at the level of T6. Which autonomic function is most likely to be impaired?

Accepted Answer

Regulation of heart rate and blood pressure

Question 16

Which of the following is the correct sequence of events in the generation of an action potential?

Accepted Answer

Depolarization, repolarization, hyperpolarization

Question 17

A patient is diagnosed with anemia. Which laboratory value would most likely be decreased?

Accepted Answer

Hemoglobin concentration

Question 18

Which of the following best explains why the kidneys play a critical role in long-term acid-base balance?

Accepted Answer

They excrete hydrogen ions and reabsorb bicarbonate ions.

Question 19

A patient is experiencing tachycardia (increased heart rate). Which branch of the autonomic nervous system is most likely activated?

Accepted Answer

Sympathetic nervous system

Question 20

Which of the following best describes the relationship between structure and function in human physiology?

Accepted Answer

The structure of a biological component determines its function.

PHY202L Human Physiology Laboratory – Course Syllabus and Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards