AND ANSWERS General Anatomy and
Physiology 1
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1. **Q:** What is the basic structural and functional unit of the human body?
- **A:** The cell.
2. **Q:** Which system is responsible for transporting blood throughout the body?
- **A:** The circulatory system.
3. **Q:** What is homeostasis?
- **A:** Homeostasis is the maintenance of a stable internal environment in the body.
4. **Q:** What is the role of mitochondria in the cell?
- **A:** Mitochondria are the powerhouses of the cell, responsible for producing energy in the
form of ATP.
5. **Q:** What is the primary function of the respiratory system?
- **A:** To exchange gases, mainly oxygen and carbon dioxide, between the blood and the air.
6. **Q:** How many bones are in the adult human skeleton?
- **A:** 206 bones.
7. **Q:** What is the largest organ in the human body?
- **A:** The skin.
8. **Q:** Which system regulates hormones in the body?
- **A:** The endocrine system.
9. **Q:** What is the function of red blood cells?
- **A:** To transport oxygen from the lungs to the tissues and carbon dioxide from the tissues
to the lungs.
10. **Q:** What is the role of the lymphatic system?
- **A:** To maintain fluid balance, protect against infections, and transport lymph.
, ### Muscular and Skeletal Systems
11. **Q:** What type of muscle is responsible for voluntary movement?
- **A:** Skeletal muscle.
12. **Q:** What is the name of the tissue that connects muscle to bone?
- **A:** Tendon.
13. **Q:** What is the largest bone in the human body?
- **A:** The femur.
14. **Q:** What is osteoporosis?
- **A:** A condition characterized by weakened bones that are more prone to fracture.
15. **Q:** Which type of joint allows for the greatest range of motion?
- **A:** Ball-and-socket joint (e.g., shoulder and hip joints).
16. **Q:** What is the role of calcium in the body?
- **A:** Calcium is essential for bone health, muscle contraction, nerve function, and blood
clotting.
17. **Q:** What is the anatomical term for the shoulder blade?
- **A:** Scapula.
18. **Q:** Which muscles are responsible for the movement of the rib cage during breathing?
- **A:** The intercostal muscles.
19. **Q:** What is the function of the axial skeleton?
- **A:** To provide support and protection for the brain, spinal cord, and organs in the thorax.
20. **Q:** What is the smallest bone in the human body?
- **A:** The stapes, located in the middle ear.
### Nervous System
21. **Q:** What are the two main divisions of the nervous system?
- **A:** The central nervous system (CNS) and the peripheral nervous system (PNS).
22. **Q:** What is the primary function of neurons?
- **A:** To transmit electrical signals throughout the body.
23. **Q:** What part of the brain is responsible for coordination and balance?
- **A:** The cerebellum.