Q: Which equation correctly represents the calculation of body surface area affected by burns using the 'Rule of Nines'?

$$\text{Total Burn Area} = \text{Sum of percentages for each affected region}$$

Question 1

Which principle explains why the structure of a body part is directly related to its function?

Accepted Answer

Principle of complementarity

Question 2

A patient presents with dehydration and electrolyte imbalance. Which feedback mechanism is most likely disrupted?

Accepted Answer

Negative feedback

Question 3

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, arms at sides, palms facing forward

Question 4

Which organ system is primarily responsible for maintaining homeostasis by regulating body temperature?

Accepted Answer

Integumentary system

Question 5

A histology slide shows tightly packed cells with little extracellular matrix, forming a barrier. Which tissue type is this?

Accepted Answer

Epithelial tissue

Question 6

Which layer of the skin contains blood vessels, nerves, and most accessory structures?

Accepted Answer

Dermis

Question 7

A burn patient has lost the entire epidermis and part of the dermis. Which type of burn is this, and why is it life-threatening?

Accepted Answer

Second-degree burn; risk of dehydration and infection due to loss of skin barrier

Question 8

Which equation correctly represents the calculation of body surface area affected by burns using the 'Rule of Nines'?

Accepted Answer

$$	ext{Total Burn Area} = 	ext{Sum of percentages for each affected region}$$

Question 9

Which of the following is NOT a function of bone tissue?

Accepted Answer

Transmission of nerve impulses

Question 10

A child’s long bones are growing in length. Which region of the bone is responsible for this growth?

Accepted Answer

Epiphyseal plate

Question 11

Which of the following best describes the difference between compact and spongy bone?

Accepted Answer

Compact bone forms the outer layer; spongy bone is found inside at the ends of long bones

Question 12

Which germ layer gives rise to the majority of connective tissues in the body?

Accepted Answer

Mesoderm

Question 13

A patient has a disorder affecting the function of sweat glands. Which structure is most likely involved?

Accepted Answer

Sudoriferous gland

Question 14

Which of the following equations correctly represents the relationship between bone density ($$D$$), mass ($$m$$), and volume ($$V$$)?

Accepted Answer

$$D = \frac{m}{V}$$

Question 15

Which of the following is a characteristic of nervous tissue?

Accepted Answer

It transmits electrical impulses

Question 16

A patient has a mutation affecting collagen production. Which tissue type will be most affected?

Accepted Answer

Connective tissue

Question 17

Which of the following best explains why the skin is considered an organ?

Accepted Answer

It consists of multiple tissue types working together for a common function

Question 18

Which of the following is a function of the periosteum?

Accepted Answer

Provides attachment for tendons and ligaments

Question 19

A patient with osteoporosis has decreased bone mass. Which equation best describes the change in bone mass ($$M) $$over time ($$t) if $$the rate of loss is constant ($$r$$)?

Accepted Answer

$$M = M_0$ - r t$$

Question 20

Which of the following best describes the function of the arrector pili muscle?

Accepted Answer

Contracts to raise hair, causing 'goosebumps'

Anatomy & Physiology: Study Guide on Body Organization, Tissues, Skeletal System, and Integumentary System

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