Anatomy and Physiology Musculoskeletal System 1 — Questions and Answers
Question 1: How many bones are in the adult human skeleton?
- 206 (Correct answer)
- 208
- 212
- 198
Correct answer: 206
The adult human skeleton consists of 206 bones, reduced from about 270 at birth due to fusion.
Question 2: Which type of muscle tissue is found in the walls of hollow organs such as the stomach and intestines?
- Smooth muscle (Correct answer)
- Cardiac muscle
- Skeletal muscle
- Striated muscle
Correct answer: Smooth muscle
Smooth muscle is involuntary and non-striated, lining hollow organs like the stomach and intestines.
Question 3: What is the name of the tough fibrous connective tissue that attaches muscle to bone?
- Tendon (Correct answer)
- Ligament
- Cartilage
- Fascia
Correct answer: Tendon
Tendons are dense fibrous connective tissue structures that connect skeletal muscles to bones.
Question 4: Which bone is the longest and strongest in the human body?
- Femur (Correct answer)
- Tibia
- Humerus
- Fibula
Correct answer: Femur
The femur, or thigh bone, is the longest and strongest bone in the human body, bearing significant weight during movement.
Question 5: What type of joint allows movement in all directions, including rotation?
- Ball-and-socket joint (Correct answer)
- Hinge joint
- Pivot joint
- Gliding joint
Correct answer: Ball-and-socket joint
Ball-and-socket joints, such as the hip and shoulder, allow the greatest range of motion including rotation in multiple planes.
Question 6: What is the primary protein that makes up the thick filaments in skeletal muscle sarcomeres?
- Myosin (Correct answer)
- Actin
- Tropomyosin
- Troponin
Correct answer: Myosin
Myosin forms the thick filaments in the sarcomere and contains the cross-bridge heads that bind to actin during muscle contraction.
Anatomy and Physiology Musculoskeletal System 1
How many bones are in the adult human skeleton?