Q: Which of the following ions are the principal cations in body fluids?

Sodium (Na\textsuperscript{+}) and Potassium (K\textsuperscript{+})

Question 1

Which organ system is primarily responsible for the regulation of body temperature and protection against water loss and infection?

Accepted Answer

Integumentary system

Question 2

A patient presents with inflammation of the membrane lining the abdominal cavity. What is the correct medical term for this condition?

Accepted Answer

Peritonitis

Question 3

Which directional term describes a structure that is farther away from the point of attachment or from the trunk of the body?

Accepted Answer

Distal

Question 4

During childbirth, the release of oxytocin causes more contractions, which in turn leads to more oxytocin release. This is an example of which type of feedback mechanism?

Accepted Answer

Positive feedback

Question 5

Which of the following best describes the anatomical position?

Accepted Answer

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

Question 6

Which plane divides the body into anterior (front) and posterior (back) portions?

Accepted Answer

Frontal (coronal) plane

Question 7

A cell is placed in a solution with a higher concentration of solutes than the cell's cytoplasm. What will happen to the cell?

Accepted Answer

It will shrink due to water efflux

Question 8

Which organelle is responsible for ATP production in the cell?

Accepted Answer

Mitochondria

Question 9

What is the main function of the serous membrane called the pleura?

Accepted Answer

Covers the lungs

Question 10

Which of the following is the correct order of organization from simplest to most complex?

Accepted Answer

Atoms → Molecules → Organelles → Cells → Tissues → Organs → Organ systems → Organism

Question 11

A patient is unable to regulate their blood glucose levels due to a lack of insulin. Which type of feedback mechanism is failing?

Accepted Answer

Negative feedback

Question 12

Which of the following is NOT a function of the cell membrane?

Accepted Answer

Protein synthesis

Question 13

Which organ system is responsible for the breakdown and absorption of nutrients?

Accepted Answer

Digestive system

Question 14

Which quadrant of the abdomen contains the liver and gallbladder?

Accepted Answer

Right upper quadrant (RUQ)

Question 15

Which of the following best describes homeostasis?

Accepted Answer

The maintenance of relatively stable internal conditions despite changes in the external environment

Question 16

Which organelle is classified as non-membranous and is responsible for protein synthesis?

Accepted Answer

Ribosome

Question 17

A person lying face down on their stomach is in which anatomical position?

Accepted Answer

Prone position

Question 18

Which of the following ions are the principal cations in body fluids?

Accepted Answer

Sodium (Na	extsuperscript{+}) and Potassium (K	extsuperscript{+})

Question 19

Which body cavity contains the heart, esophagus, trachea, and portions of major vessels?

Accepted Answer

Thoracic cavity

Question 20

Which of the following best describes the role of the hypothalamus in homeostasis?

Accepted Answer

Acts as the control center integrating temperature regulation

Foundations of Human Anatomy & Physiology: Cells, Tissues, Organs, and Systems

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