NumicornNumicornLearn, solve, progress

Anatomy and Physiology Practice Tests

These Grade 12 Science practice tests develop Anatomy and Physiology skills through body organization, tissues, homeostasis, movement, nervous and endocrine control, cardiovascular and respiratory function, digestion, excretion, immunity, and reproduction.

Skills covered

  • Using anatomical position, homeostasis, tissue types, organs, cell membranes, mitosis, mitochondria, and DNA concepts
  • Explaining bone remodeling, synovial joints, muscle contraction, neuromuscular junctions, skin, thermoregulation, cartilage, ligaments, and tendons
  • Analyzing neurons, membrane potential, synapses, reflexes, central and autonomic nervous systems, hormones, insulin, thyroid regulation, and cortisol feedback
  • Tracing blood flow, cardiac pacing, arteries, capillaries, hemoglobin, ventilation, alveolar exchange, lymphatic function, and antibodies
  • Applying digestion, liver function, nutrient absorption, nephron filtration, ADH, urinary regulation, fertilization, adaptive immunity, and memory

How to use these practice tests

For each question, identify the structure, trace the direction of movement or signaling, and explain how the structure supports the body system's function. Use the solutions to connect anatomy with homeostasis and physiological evidence.

For more Grade 12 Science practice, return to the Grade 12 Science category.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

4. Test

Grade 12 Anatomy and Physiology Practice Tests

Practice Grade 12 Science questions about anatomical organization, tissues, movement, nervous and endocrine control, circulation, respiration, digestion, excretion, immunity, and reproduction.

Choose the best answer. Connect each structure to its function, follow the direction of flow or signaling, and distinguish regulation, transport, exchange, and defense.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which sequence correctly describes blood flow from the body to the lungs?

Please select an answer first.

Correct answer: A

The correct answer is Right atrium, right ventricle, pulmonary artery, lungs.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Deoxygenated blood returns through the venae cavae to the right heart and is pumped through the pulmonary artery to the lungs.
  3. Connect structure and function: The correct answer is Right atrium, right ventricle, pulmonary artery, lungs.

Deoxygenated blood returns through the venae cavae to the right heart and is pumped through the pulmonary artery to the lungs.

2. QuestionMultiple choice

What is the sinoatrial node?

Please select an answer first.

Correct answer: B

The correct answer is The heart's normal pacemaker.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: The sinoatrial node generates rhythmic electrical impulses that initiate each normal heartbeat.
  3. Connect structure and function: The correct answer is The heart's normal pacemaker.

The sinoatrial node generates rhythmic electrical impulses that initiate each normal heartbeat.

3. QuestionMultiple choice

What is a major function of arteries?

Please select an answer first.

Correct answer: C

The correct answer is Carrying blood away from the heart under relatively high pressure.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Arteries transport blood away from the heart; oxygen content depends on the circuit, so pulmonary arteries are an exception to the usual pattern.
  3. Connect structure and function: The correct answer is Carrying blood away from the heart under relatively high pressure.

Arteries transport blood away from the heart; oxygen content depends on the circuit, so pulmonary arteries are an exception to the usual pattern.

4. QuestionMultiple choice

Where does most exchange of gases, nutrients, and wastes occur?

Please select an answer first.

Correct answer: D

The correct answer is Across capillary walls.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Capillaries have thin walls and extensive networks that bring blood close to cells for diffusion and transport.
  3. Connect structure and function: The correct answer is Across capillary walls.

Capillaries have thin walls and extensive networks that bring blood close to cells for diffusion and transport.

5. QuestionMultiple choice

What is hemoglobin's primary role?

Please select an answer first.

Correct answer: A

The correct answer is Binding and transporting much of the oxygen in blood.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Hemoglobin in red blood cells binds oxygen reversibly and helps transport it from lungs to tissues.
  3. Connect structure and function: The correct answer is Binding and transporting much of the oxygen in blood.

Hemoglobin in red blood cells binds oxygen reversibly and helps transport it from lungs to tissues.

6. QuestionMultiple choice

What is pulmonary ventilation?

Please select an answer first.

Correct answer: B

The correct answer is The movement of air into and out of the lungs.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Ventilation is breathing; it moves air so that gas exchange can occur in the respiratory surfaces.
  3. Connect structure and function: The correct answer is The movement of air into and out of the lungs.

Ventilation is breathing; it moves air so that gas exchange can occur in the respiratory surfaces.

7. QuestionMultiple choice

Why are alveoli effective for gas exchange?

Please select an answer first.

Correct answer: C

The correct answer is They provide a large, thin, moist surface close to capillaries.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Large surface area, short diffusion distance, moisture, and rich capillary supply support efficient exchange of (O_2) and (CO_2).
  3. Connect structure and function: The correct answer is They provide a large, thin, moist surface close to capillaries.

Large surface area, short diffusion distance, moisture, and rich capillary supply support efficient exchange of (O_2) and (CO_2).

8. QuestionMultiple choice

What happens to the diaphragm during quiet inhalation?

Please select an answer first.

Correct answer: D

The correct answer is It contracts and moves downward, increasing thoracic volume.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Diaphragm contraction increases thoracic volume, lowers internal pressure, and draws air into the lungs.
  3. Connect structure and function: The correct answer is It contracts and moves downward, increasing thoracic volume.

Diaphragm contraction increases thoracic volume, lowers internal pressure, and draws air into the lungs.

9. QuestionMultiple choice

What is the main role of the lymphatic system?

Please select an answer first.

Correct answer: A

The correct answer is Returning excess tissue fluid to blood and supporting immune defense.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Lymphatic vessels return interstitial fluid and lymphoid organs help coordinate immune responses.
  3. Connect structure and function: The correct answer is Returning excess tissue fluid to blood and supporting immune defense.

Lymphatic vessels return interstitial fluid and lymphoid organs help coordinate immune responses.

10. QuestionMultiple choice

What is an antibody?

Please select an answer first.

Correct answer: B

The correct answer is A protein made by B cells that binds a specific antigen.

  1. Identify the body system or structure: Determine whether the question concerns anatomical organization, tissues, movement, control, transport, exchange, digestion, excretion, immunity, or reproduction.
  2. Apply the physiological principle: Antibodies recognize target antigens and can neutralize or mark pathogens for removal.
  3. Connect structure and function: The correct answer is A protein made by B cells that binds a specific antigen.

Antibodies recognize target antigens and can neutralize or mark pathogens for removal.

Previous testNext test