Question 1
Which part of the skeleton protects the brain?
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Skull
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Rib cage
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Pelvis
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Femur
Question 2
Which structure mainly protects the heart and lungs?
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Rib cage
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Cranium
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Vertebral column
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Patella
Question 3
Which structure protects the spinal cord?
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Vertebral column
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Rib cage
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Clavicle
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Scapula
Question 4
Where are new blood cells made in the skeleton?
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Bone marrow
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Cartilage
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Synovial fluid
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Ligament
Question 5
What does a ligament connect?
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Bone to bone
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Muscle to bone
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Muscle to muscle
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Bone to cartilage
Question 6
What does a tendon connect?
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Muscle to bone
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Bone to bone
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Bone to bone marrow
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Cartilage to cartilage
Question 7
What is the main function of cartilage at a joint?
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Reduce friction and cushion bone ends
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Join one bone to another
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Attach a muscle to a bone
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Contract to move the bones
Question 8
What does synovial fluid do in a joint?
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Lubricates moving surfaces
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Joins one bone to another
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Attaches muscle to bone
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Contracts to move the joint
Question 9
Which type of joint is the knee?
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Hinge joint
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Ball-and-socket joint
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Pivot joint
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Fixed joint
Question 10
Which type of joint is the shoulder?
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Ball-and-socket joint
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Hinge joint
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Fixed joint
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Pivot joint
Question 11
How do antagonistic muscles usually move a joint?
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One contracts while the other relaxes
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Both contract equally
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Both relax together
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One relaxes while the other stays unchanged
Question 12
At the elbow, what happens when the forearm bends?
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Biceps contracts and triceps relaxes
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Triceps contracts and biceps relaxes
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Both biceps and triceps contract equally
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Both biceps and triceps relax
Question 13
What do the muscles do when the elbow straightens?
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The triceps muscle contracts; the biceps muscle relaxes
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The biceps muscle contracts; the triceps muscle relaxes
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Both muscles contract
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Both muscles relax
Question 14
In movement at a joint, what do bones mainly act as?
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Levers
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Fulcrums
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Effort forces
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Lubricants
Question 15
What usually results from a stronger muscle contraction?
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A larger force on the bone
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A smaller force on the bone
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The same force for longer
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A change in the bone's length
Question 16
What is the SI unit used to measure force from a muscle?
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Newton (N)
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Joule (J)
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Watt (W)
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Volt (V)
Question 17
What is most likely if an ankle ligament is torn?
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The joint becomes less stable
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The muscle detaches from the bone
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Friction between bone ends increases
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One of the bones fractures
Question 18
What does the pelvis do?
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Supports the upper body and protects lower organs
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Surrounds the heart and lungs
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Encloses and protects the brain
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Surrounds and protects the spinal cord
Question 19
Which joint type joins most bones of the skull?
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Fixed joint
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Hinge joint
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Pivot joint
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Ball-and-socket joint
Question 20
What is a joint?
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A place where two or more bones meet
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A band joining one bone to another
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A tissue attaching muscle to bone
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A smooth layer covering a bone end
Question 21
What is likely if cartilage at a joint wears away?
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Friction between bone ends increases
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The joint becomes more stable
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The bone ends move farther apart
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Muscle force at the joint increases
Question 22
Which structure is damaged in a sprain?
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A ligament
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A tendon
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A bone
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A muscle
Question 23
Which tissue is commonly damaged in a strain?
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Muscle or tendon
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Ligament
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Bone marrow
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Synovial fluid
Question 24
What happens to a muscle’s length as it contracts?
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It gets shorter
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It gets longer
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It stays the same
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It lengthens and then shortens
Question 25
Which joint type allows the head to turn from side to side?
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Pivot joint
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Hinge joint
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Ball-and-socket joint
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Fixed joint