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

What is the main role of the skeleton in support?
  1. To keep the body upright and give it shape
  2. To pump blood around the body
  3. To release insulin into blood
  4. To digest starch in the small intestine

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 only

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 joints?
  1. To reduce friction and cushion movement
  2. To carry oxygen in blood
  3. To produce antibodies
  4. To attach muscles to bones

Question 9

What is the role of synovial fluid in a synovial joint?
  1. It lubricates the joint
  2. It hardens to form new bone
  3. It stores glucose for muscles
  4. It carries nerve impulses

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

What do antagonistic muscles do?
  1. Work in pairs so one contracts while the other relaxes
  2. Both contract fully at the same time for normal movement
  3. Both relax fully to pull bones
  4. Only work during sleep

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 can muscles move bones but not push them back by themselves?
  1. Muscles can only pull when they contract
  2. Muscles can only push and never pull
  3. Bones actively pull muscles
  4. Tendons shorten without muscles

Question 16

In movement at a joint, what do bones mainly act as?
  1. Levers
  2. Pumps
  3. Filters
  4. Insulators

Question 17

A stronger contraction of a muscle usually produces what change?
  1. A larger force on the bone
  2. A lower force on the bone
  3. No force at all
  4. Only heat and no movement

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

Which is most likely if a ligament around the ankle is torn?
  1. The joint becomes less stable
  2. The bone marrow stops making blood cells
  3. The tendon turns into cartilage
  4. The muscle cannot release energy

Question 20

Which statement correctly describes the pelvis?
  1. It helps support the upper body and protects organs in the lower abdomen
  2. It contains the lungs for gas exchange
  3. It is the only bone that can contract
  4. It pumps blood to the legs

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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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