1st Year Biology Chapter 12 TestHuman Skeletal and Muscular System

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. In a muscle, the Z-line are the proteins for the attachment of the ends of;

   1. Actin filaments

   2. Myosin filaments

   3. Both actin and myosin filaments

   4. Sarcomeres

2. What separates the lamellae in compact bone?

   1. Lacunae

   2. Trabeculae

   3. Blood vessels

   4. Fat cells

3. Which of the following is NOT an unpaired cranial bone?

   1. Frontal bone

   2. Temporal bone

   3. Occipital bone

   4. Sphenoid bone

4. Bones connected by hyaline cartilage in cartilaginous joints can be found in?

   1. Knee joint

   2. Joint between the first rib and sternum

   3. Joints between vertebrae

   4. Teeth sockets

5. What is the end of the muscle called that is attached to the stationary bone during contraction?

   1. Insertion
   2. Origin
   3. Belly
   4. Extension

6. What gives bone both strength and flexibility?

   1. Bone marrow and nerves

   2. Osteocytes and osteoblasts

   3. Collagen and calcium phosphate crystals

   4. Fat and calcium

7. What is a sprain?

   1. Dislocation of bones

   2. Inflammation of tendons

   3. Injury to ligaments

   4. Fracture of joint

8. What is spondylosis?

   1. Infection of joints

   2. Inflammation of tendons

   3. Degeneration of vertebrae, discs, ligaments, or cartilage

   4. Swelling of bones

9. Which group of disorders includes sudden,. involuntary contractions of muscles?

   1. Muscle fatigue

   2. Muscle cramps

   3. Bone fractures

   4. Tetany

10. What is tetany?

    1. Permanent muscle relaxation

    2. A condition with involuntary muscle spasms

    3. Muscle regeneration process

    4. Muscle thickening condition