Skeleton and Muscles questions

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Skeleton and Muscles question collection

Review Skeleton and Muscles questions for Biology, with correct answers shown and coverage across functions of the skeleton; joints and movement; antagonistic muscle pairs.

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Question 1

How does the skeleton support the body?
  1. Holds it upright and gives it shape
  2. Provides force by contracting
  3. Joins each muscle to a bone
  4. Reduces friction inside each joint

Question 2

Which part of the skeleton protects the brain?
  1. Skull
  2. Rib cage
  3. Pelvis
  4. Femur

Question 3

Which structure mainly protects the heart and lungs?
  1. Rib cage
  2. Cranium
  3. Vertebral column
  4. Patella

Question 4

Which structure protects the spinal cord?
  1. Vertebral column
  2. Rib cage
  3. Clavicle
  4. Scapula

Question 5

Where are new blood cells made in the skeleton?
  1. Bone marrow
  2. Cartilage
  3. Synovial fluid
  4. Ligament

Question 6

What does a ligament connect?
  1. Bone to bone
  2. Muscle to bone
  3. Muscle to muscle
  4. Bone to cartilage

Question 7

What does a tendon connect?
  1. Muscle to bone
  2. Bone to bone
  3. Bone to bone marrow
  4. Cartilage to cartilage

Question 8

What is the main function of cartilage at a joint?
  1. Reduce friction and cushion bone ends
  2. Join one bone to another
  3. Attach a muscle to a bone
  4. Contract to move the bones

Question 9

What does synovial fluid do in a joint?
  1. Lubricates moving surfaces
  2. Joins one bone to another
  3. Attaches muscle to bone
  4. Contracts to move the joint

Question 10

Which type of joint is the knee?
  1. Hinge joint
  2. Ball-and-socket joint
  3. Pivot joint
  4. Fixed joint

Question 11

Which type of joint is the shoulder?
  1. Ball-and-socket joint
  2. Hinge joint
  3. Fixed joint
  4. Pivot joint

Question 12

How do antagonistic muscles usually move a joint?
  1. One contracts while the other relaxes
  2. Both contract equally
  3. Both relax together
  4. One relaxes while the other stays unchanged

Question 13

At the elbow, what happens when the forearm bends?
  1. Biceps contracts and triceps relaxes
  2. Triceps contracts and biceps relaxes
  3. Both biceps and triceps contract equally
  4. Both biceps and triceps relax

Question 14

At the elbow, what happens when the forearm straightens?
  1. Triceps contracts and biceps relaxes
  2. Biceps contracts and triceps relaxes
  3. Both muscles contract fully
  4. Neither muscle changes

Question 15

Why is an opposing muscle needed to reverse a joint movement?
  1. A contracting muscle pulls but does not push
  2. A contracting muscle pushes but does not pull
  3. A bone contracts to reverse the movement
  4. A tendon shortens without its muscle

Question 16

In movement at a joint, what do bones mainly act as?
  1. Levers
  2. Fulcrums
  3. Effort forces
  4. Lubricants

Question 17

What usually results from a stronger muscle contraction?
  1. A larger force on the bone
  2. A smaller force on the bone
  3. The same force for longer
  4. A change in the bone's length

Question 18

What is the SI unit used to measure force from a muscle?
  1. Newton (N)
  2. Joule (J)
  3. Watt (W)
  4. Volt (V)

Question 19

What is most likely if an ankle ligament is torn?
  1. The joint becomes less stable
  2. The muscle detaches from the bone
  3. Friction between bone ends increases
  4. One of the bones fractures

Question 20

What does the pelvis do?
  1. Supports the upper body and protects lower organs
  2. Surrounds the heart and lungs
  3. Encloses and protects the brain
  4. Surrounds and protects the spinal cord

Question 21

Which mineral is especially important for strong bones?
  1. Calcium
  2. Iron
  3. Iodine
  4. Sodium

Question 22

Which joint type joins most bones of the skull?
  1. Fixed joint
  2. Hinge joint
  3. Pivot joint
  4. Ball-and-socket joint

Question 23

What is a joint?
  1. A place where two or more bones meet
  2. A band joining one bone to another
  3. A tissue attaching muscle to bone
  4. A smooth layer covering a bone end

Question 24

What is likely if cartilage at a joint wears away?
  1. Friction between bone ends increases
  2. The joint becomes more stable
  3. The bone ends move farther apart
  4. Muscle force at the joint increases

Question 25

Which structure is damaged in a sprain?
  1. A ligament
  2. A tendon
  3. A bone
  4. A muscle

Question 26

Which tissue is commonly damaged in a strain?
  1. Muscle or tendon
  2. Ligament
  3. Bone marrow
  4. Synovial fluid

Question 27

During contraction, how do muscle length and width change, respectively?
  1. Shorter; thicker
  2. Longer; thinner
  3. Shorter; thinner
  4. Longer; thicker

Question 28

Which joint type allows the head to turn from side to side?
  1. Pivot joint
  2. Hinge joint
  3. Ball-and-socket joint
  4. Fixed joint

Question 29

Which process releases energy for muscle contraction?
  1. Respiration
  2. Photosynthesis
  3. Diffusion
  4. Digestion

Question 30

How can regular weight-bearing exercise benefit muscles and bones?
  1. Strengthens muscles and increases bone density
  2. Strengthens muscles but reduces bone density
  3. Weakens muscles while increasing bone density
  4. Uses bone calcium to increase muscle size

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Review Skeleton and Muscles questions for Biology, with correct answers shown and coverage across functions of the skeleton; joints and movement; antagonistic muscle pairs.

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