Portage A&P Exam 1 Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What term describes the maintenance of a stable internal environment?
✔✔ Homeostasis
What organ system is responsible for transporting oxygen and nutrients?
✔✔ Circulatory system
What cavity contains the brain?
✔✔ Cranial cavity
What is the term for the study of body structure?
✔✔ Anatomy
What plane divides the body into left and right halves?
✔✔ Sagittal plane
1
,What is the name for the vertical plane that divides the body into anterior and posterior sections?
✔✔ Frontal plane
What direction term means "toward the feet"?
✔✔ Inferior
What direction term means "closer to the point of attachment"?
✔✔ Proximal
What is the term for the body's ability to detect and respond to changes?
✔✔ Responsiveness
What is the primary function of the skeletal system?
✔✔ Support
What system includes skin, hair, and nails?
✔✔ Integumentary system
2
,What organ system regulates body functions using hormones?
✔✔ Endocrine system
What cavity contains the heart and lungs?
✔✔ Thoracic cavity
What type of feedback reverses a change in a controlled condition?
✔✔ Negative feedback
What organelle is the site of ATP production?
✔✔ Mitochondrion
What structure controls what enters and exits the cell?
✔✔ Cell membrane
What type of tissue lines body surfaces and cavities?
✔✔ Epithelial tissue
3
, What body system is responsible for movement?
✔✔ Muscular system
What fluid-filled cavity surrounds the lungs?
✔✔ Pleural cavity
What type of energy is stored in chemical bonds?
✔✔ Potential energy
What is the term for all the chemical reactions occurring in the body?
✔✔ Metabolism
What is the term for a substance made of two or more elements chemically bonded?
✔✔ Compound
What is the smallest unit of an element?
✔✔ Atom
4
Answers | Latest Version | 2025/2026 |
Correct & Verified
What term describes the maintenance of a stable internal environment?
✔✔ Homeostasis
What organ system is responsible for transporting oxygen and nutrients?
✔✔ Circulatory system
What cavity contains the brain?
✔✔ Cranial cavity
What is the term for the study of body structure?
✔✔ Anatomy
What plane divides the body into left and right halves?
✔✔ Sagittal plane
1
,What is the name for the vertical plane that divides the body into anterior and posterior sections?
✔✔ Frontal plane
What direction term means "toward the feet"?
✔✔ Inferior
What direction term means "closer to the point of attachment"?
✔✔ Proximal
What is the term for the body's ability to detect and respond to changes?
✔✔ Responsiveness
What is the primary function of the skeletal system?
✔✔ Support
What system includes skin, hair, and nails?
✔✔ Integumentary system
2
,What organ system regulates body functions using hormones?
✔✔ Endocrine system
What cavity contains the heart and lungs?
✔✔ Thoracic cavity
What type of feedback reverses a change in a controlled condition?
✔✔ Negative feedback
What organelle is the site of ATP production?
✔✔ Mitochondrion
What structure controls what enters and exits the cell?
✔✔ Cell membrane
What type of tissue lines body surfaces and cavities?
✔✔ Epithelial tissue
3
, What body system is responsible for movement?
✔✔ Muscular system
What fluid-filled cavity surrounds the lungs?
✔✔ Pleural cavity
What type of energy is stored in chemical bonds?
✔✔ Potential energy
What is the term for all the chemical reactions occurring in the body?
✔✔ Metabolism
What is the term for a substance made of two or more elements chemically bonded?
✔✔ Compound
What is the smallest unit of an element?
✔✔ Atom
4
