Question 1

Which statement best explains the principle 'structure determines function' as it applies to human anatomy and physiology?

Accepted Answer

The structure of a body part is designed to optimize its specific function.

Question 2

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

Accepted Answer

Shivering to increase body temperature when it falls below set point.

Question 3

A patient has a blood calcium level of 7.0 mg/dL (normal: 8.6–10.2 mg/dL). Which of the following correctly identifies the receptor, control center, and effectors in the homeostatic response?

Accepted Answer

Receptor: Blood chemoreceptors; Control center: Parathyroid gland; Effectors: Bone and kidneys

Question 4

Which organ system is primarily responsible for synthesizing vitamin D and providing a physical barrier against pathogens?

Accepted Answer

Integumentary system

Question 5

Which of the following best describes the hierarchical organization of life from simplest to most complex?

Accepted Answer

Atom → Molecule → Cell → Tissue → Organ → Organ system → Organism

Question 6

A hammer is able to drive a nail into wood because of its specific structure. Which anatomical concept does this analogy best illustrate?

Accepted Answer

Structure determines function

Question 7

Which organ system is directly responsible for the removal of metabolic waste and regulation of blood pH?

Accepted Answer

Urinary system

Question 8

During a positive feedback loop, which of the following occurs?

Accepted Answer

The effectors work to amplify the change away from the setpoint.

Question 9

Which of the following is NOT a necessary life function?

Accepted Answer

Photosynthesis

Question 10

A person is exposed to cold weather, causing their body temperature to drop. Which of the following best describes the sequence of events in the negative feedback loop that restores body temperature?

Accepted Answer

Receptors detect cold, control center signals effectors, effectors cause shivering, body temperature rises

Question 11

Which organ system is primarily responsible for the production and secretion of hormones that regulate growth, metabolism, and reproduction?

Accepted Answer

Endocrine system

Question 12

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

Accepted Answer

Returns interstitial fluid to the circulatory system and houses immune cells

Question 13

Which of the following is a correct pairing of a body cavity and a major organ it contains?

Accepted Answer

Cranial cavity – Brain

Question 14

Which of the following best describes the role of effectors in a feedback loop?

Accepted Answer

They carry out the response to restore homeostasis.

Question 15

Which of the following is an example of anabolism?

Accepted Answer

Synthesizing proteins from amino acids

Question 16

A patient has suffered a spinal cord injury. Which body cavity is directly affected?

Accepted Answer

Spinal cavity

Question 17

Which organ system is responsible for gas exchange and maintaining blood pH?

Accepted Answer

Respiratory system

Question 18

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

Accepted Answer

Contracts to enable movement, posture, and heat production

Question 19

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

Accepted Answer

Breaks down food into absorbable molecules and eliminates waste

Question 20

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

Accepted Answer

Anatomy studies the structure of body parts, while physiology studies how they function.

Introduction to Human Anatomy and Physiology: Structure, Function, and Homeostasis

Guida di studio - Domande di pratica

Study guide - Flashcard