Question 1

Which of the following best describes the concept of homeostasis as it applies to human physiology?

Accepted Answer

The process by which the body maintains a constant internal environment despite external changes.

Question 2

A patient presents with low blood calcium levels. Which organ system is primarily responsible for restoring calcium homeostasis?

Accepted Answer

Endocrine system

Question 3

Which of the following is an example of a negative feedback mechanism in the human body?

Accepted Answer

Regulation of blood glucose by insulin

Question 4

A student is examining a tissue sample under a microscope and observes striated muscle fibers with multiple nuclei. Which type of muscle tissue is being observed?

Accepted Answer

Skeletal muscle

Question 5

Which equation correctly represents the calculation of cardiac output ($CO$) in human physiology?

Accepted Answer

$CO = HR 	imes SV$

Question 6

During a forensic investigation, a scientist uses DNA analysis to identify a suspect. Which cell organelle contains the majority of the cell’s genetic material used in this process?

Accepted Answer

Nucleus

Question 7

A patient is experiencing difficulty in voluntary movement and muscle contraction. Which physiological process is most likely impaired?

Accepted Answer

Neuromuscular transmission

Question 8

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, facing forward, arms at sides, palms facing forward

Question 9

A researcher measures the vital capacity ($VC$) of a subject’s lungs. Which formula should be used?

Accepted Answer

$VC = TV + IRV + ERV$

Question 10

Which of the following is a function of the integumentary system?

Accepted Answer

Protection against environmental hazards

Question 11

A student is asked to identify the relationship between the heart and the lungs using anatomical terminology. Which statement is correct?

Accepted Answer

The heart is medial to the lungs.

Question 12

Which of the following best explains why enzymes are important in physiological processes?

Accepted Answer

They lower the activation energy required for chemical reactions.

Question 13

A patient is diagnosed with diabetes mellitus. Which organ is primarily responsible for producing the hormone that regulates blood glucose?

Accepted Answer

Pancreas

Question 14

Which of the following is the correct sequence of organization from smallest to largest in the human body?

Accepted Answer

Cell, tissue, organ, organ system, organism

Question 15

A forensic scientist uses a microscope to examine a hair sample. Which type of microscope would provide the highest magnification and resolution for viewing cellular details?

Accepted Answer

Electron microscope

Question 16

Which of the following best describes the function of the skeletal system?

Accepted Answer

Provides structural support and protection for internal organs

Question 17

A patient’s blood pressure is measured as 120/80 mmHg. Which formula can be used to calculate the mean arterial pressure ($MAP$)?

Accepted Answer

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

Question 18

Which of the following is a primary function of the nervous system?

Accepted Answer

Transmitting electrical signals to coordinate body activities

Question 19

A student is asked to calculate the body mass index ($BMI$) for a patient who weighs 70 kg and is 1.75 m tall. Which formula should be used?

Accepted Answer

$BMI = \frac{weight\ (kg)}{height^2\ (m^2)}$

Question 20

Which of the following best describes the role of the endocrine system in maintaining homeostasis?

Accepted Answer

Secretes hormones that regulate physiological processes throughout the body

Anatomy and Physiology I (BIOL-210): Course Syllabus and Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards