Question 1

Which of the following best illustrates the principle of complementarity between structure and function in human anatomy?

Accepted Answer

The thin walls of capillaries facilitate efficient diffusion of gases and nutrients.

Question 2

A patient presents with a blood pH of 6.8. Which of the following statements is correct regarding the acidity of their blood?

Accepted Answer

Their blood is acidic, and the concentration of hydrogen ions is higher than normal.

Question 3

Which imaging technique is most appropriate for detecting metabolic activity in brain tissue, such as in Alzheimer's disease?

Accepted Answer

PET (positron emission tomography) scan

Question 4

A cell is placed in a solution with a higher concentration of solutes than inside the cell. Which process will occur, and what is the expected outcome?

Accepted Answer

Osmosis; water will move out of the cell, causing it to shrink.

Question 5

Which of the following is a function of the plasma membrane's glycoproteins?

Accepted Answer

They act as markers for cell-to-cell recognition and determine blood type.

Question 6

Which of the following best describes the process of endochondral ossification?

Accepted Answer

Bone develops from a hyaline cartilage model, forming most long bones.

Question 7

A patient with a deficiency in vitamin D is most likely to develop which bone disorder, and what is the underlying mechanism?

Accepted Answer

Rickets; inadequate mineralization of bone due to poor calcium absorption.

Question 8

Which of the following is TRUE regarding the sodium-potassium pump in nerve cells?

Accepted Answer

It moves sodium out of the cell and potassium in, using ATP for active transport.

Question 9

Which of the following best explains why cartilage heals slowly after injury?

Accepted Answer

Cartilage is avascular, so nutrients must diffuse slowly to cells.

Question 10

A person with a spinal cord injury at the level of T1-L1 is most likely to experience which condition?

Accepted Answer

Paraplegia (paralysis of the lower limbs)

Question 11

Which of the following is a major function of the hypothalamus?

Accepted Answer

Regulation of body homeostasis, including temperature, hunger, and water balance

Question 12

Which of the following best describes the function of high-density lipoproteins (HDL) in the body?

Accepted Answer

HDL removes cholesterol from tissues and transports it to the liver for excretion.

Question 13

Which of the following is a characteristic of simple squamous epithelium, and why is it suited for its function?

Accepted Answer

It is composed of a single layer of flat cells, allowing efficient diffusion of gases.

Question 14

A patient with a burn covering the entire anterior chest (front) and the front of one leg would have what percentage of their body surface burned according to the Rule of Nines?

Accepted Answer

$$18\% + 9\% = 27\%$$

Question 15

Which of the following best describes the sliding filament model of muscle contraction?

Accepted Answer

Actin filaments slide past myosin filaments, shortening the sarcomere.

Question 16

Which neurotransmitter is most associated with the 'runner's high' and acts as a natural painkiller?

Accepted Answer

Endorphins

Question 17

A patient with a deficiency in acetylcholine is most likely to experience which neurological disorder?

Accepted Answer

Alzheimer's disease

Question 18

Which of the following is TRUE regarding the all-or-none principle in muscle contraction?

Accepted Answer

Individual muscle fibers contract to their fullest extent or not at all.

Question 19

Which of the following best explains why the blood-brain barrier (BBB) is important for brain function?

Accepted Answer

It restricts passage of harmful substances, stabilizing the chemical environment of the brain.

Comprehensive Study Notes for Anatomy & Physiology I (Chapters 1–15)

Study Guide - Practice Questions

Study Guide - Flashcards