Q: During exercise, Connie’s blood CO$_2$ rises above the normal range of 35–45 mmHg. Which equation best represents the homeostatic response?

$\text{CO}_2 \uparrow \rightarrow \text{chemoreceptors} \rightarrow \text{medulla oblongata} \rightarrow \text{respiratory muscles} \rightarrow \text{respiratory rate} \uparrow$

Question 1

Which of the following best describes the difference between anatomy and physiology?

Accepted Answer

Anatomy focuses on the structure of the human body, while physiology focuses on how those structures function.

Question 2

A patient presents with a fever of 39°C. Which homeostatic control system component first detects this change?

Accepted Answer

Receptor

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

During exercise, Connie’s blood CO$_2$ rises above the normal range of 35–45 mmHg. Which equation best represents the homeostatic response?

Accepted Answer

$	ext{CO}_2 \uparrow ightarrow 	ext{chemoreceptors} ightarrow 	ext{medulla oblongata} ightarrow 	ext{respiratory muscles} ightarrow 	ext{respiratory rate} \uparrow$

Question 5

Which plane divides the body into anterior and posterior sections?

Accepted Answer

Frontal (coronal) plane

Question 6

A physician uses percussion to assess a patient’s liver. What is the primary purpose of this technique?

Accepted Answer

To determine the size, consistency, and borders of the liver

Question 7

Which of the following is the correct set point for normal human body temperature?

Accepted Answer

37°C

Question 8

Which of the following is a correct sequence for the six components of a homeostatic control system?

Accepted Answer

Variable → Receptor → Control Center → Set Point → Effector → Response

Question 9

Which of the following is an example of extrinsic regulation?

Accepted Answer

The nervous system increasing heart rate during exercise

Question 10

Which body cavity protects the brain?

Accepted Answer

Cranial cavity

Question 11

A student is asked to paraphrase and provide MLA/APA reference when answering a case study question. Why is this method preferred?

Accepted Answer

It avoids plagiarism and demonstrates understanding of the material.

Question 12

Which of the following is NOT a property shared by all living organisms?

Accepted Answer

Photosynthesis

Question 13

Which of the following best describes the anatomical position?

Accepted Answer

Standing erect, arms at sides, palms facing forward, feet flat on the floor

Question 14

Which of the following is a response for lowering body temperature?

Accepted Answer

Sweating

Question 15

Which of the following best explains why homeostatic imbalances can lead to disease?

Accepted Answer

Imbalances disrupt the equilibrium of physiological systems, preventing restoration of normal function.

Question 16

Which of the following is a correct example of neural control in homeostasis?

Accepted Answer

The CNS processing signals from thermoreceptors and sending instructions via nerves

Question 17

Which of the following best describes the function of the effector in a homeostatic control system?

Accepted Answer

Carries out instructions to restore homeostasis

Question 18

Which of the following is a real-world example of positive feedback?

Accepted Answer

Amplification of uterine contractions during childbirth

Question 19

Which of the following best describes the transverse plane?

Accepted Answer

Divides the body into superior and inferior sections

Question 20

Which of the following is the correct formula for calculating the average of a set of body temperatures: 36°C, 37°C, and 38°C?

Accepted Answer

$	ext{Average} = \frac{36 + 37 + 38}{3}$

Introduction to Anatomy and Physiology: Course Organization and Study Skills

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