Body Movements Worksheet

Objective Type Questions

1. Match the items in Column A with the items in Column B.
   
   
   
2. Fill in the blanks by choosing the appropriate word from those given in the brackets.
   (fixed, hinge, pivot, ball and socket)
   (a) In …………………. joint, the rounded end of one bone fits into the cavity of the other bone.
   (b) A …………………. joint is where a cylindrical bone rotates in a ring.
   (c) …………………. joints bring about movement in only back and forth direction.
   (d) Joints at which bones cannot move are called …………………. joints.
   
   
3. Few organisms are shown below. Identify the organism based on the clues provided.
   
   (a) My foot is a thick structure made of strong muscles which helps in dragging my body. I move in a wavy motion. Who am I?
   (b) I do not have bones but can move forward by repeated muscle expansions and contractions. I have a large number of tiny bristles under my body. Who am I?
   (c) I have hollow and light bones which help me fly in air. My shoulder bones are strong, and breastbones are modified. Who am I?
   (d) I have a streamlined body and a skeleton covered with strong muscles. I also have fins. Who am I?
   (e) I have three pairs of modified legs and two pairs of wings. I have distinct muscles which enable me to fly, walk and climb. Who am I?
   
   
4. Few structures associated with the human skeletal system are shown below. Identify these structures.
   
   
   Multiple Choice Questions
   
   
5. Vivek observed a joint in the neck. He claimed that the joint is a pivotal joint. Is the claim made by Vivek, correct?
   
   (a) No, as hinge joint is present in the head area.
   (b) No, as pivotal joint is present in the jaw portion only.
   (c) Yes, as it allows the individual to move its head in all directions.
   (d) Yes, as it allows forward and backward bending and right or left turning of head.
   
   
6. The given picture shows the bones from the elbow and leg region. What is the similarity in the bones of these regions?
   
   (a) The bones of both regions have the same length.
   (b) The bones of both regions can move in all directions.
   (c) The bones of both regions have the same type of joint.
   (d) The bones of both regions are attached to the pelvic girdle.
   
   
7. The given image shows the human backbone which extends through most of the body. How does the backbone differ from the thigh bone, femur?
   
   (a) Backbone is made of many small bones, while femur is a long bone.
   (b) Backbone is a long bone, while femur is made of many small bones.
   (c) Backbone is the smallest bone of the body, while femur is the longest bone.
   (d) Backbone is the longest bone of the body, while femur is the smallest bone.
   
   
8. The image shows how the muscles help in the movement of the arm.
    
   Based on the image, what will be the length of the muscles during bending?
   (a) Both biceps and triceps relax
   (b) Both biceps and triceps contract
   (c) The biceps contract while the triceps relax
   (d) The biceps relax while the triceps contracts
   
   
9. Meena observed the movement of an organism that lacks bones. Based on the manner of movement, which organism is it likely to be?
   
   (a) Ant
   (b) Cockroach
   (c) Earthworm
   (d) Snake 
   
   
10. The table lists the characteristic features of body movements of various organisms.
    
    Which organisms show these movements?
    (a) A – Fish; B - Snail
    (b) A – Snail; B - Snake
    (c) A – Bird; B - Cockroach
    (d) A – Snake; B – Earthworm
    
    
11. The given image shows the movement of a snake and a snail. What could be the likely reason for the movement in snakes to be sidewinding and that in snails to be in a wavy motion?
    
    (a) In snakes, bones are present that are absent in snails.
    (b) In snails, thin muscles are more compared to snakes.
    (c) In snakes, thick muscles are present that are absent in snails.
    (d) In snails, the number of bones is more as compared to snakes.
    
    
12. Which of the following enables fishes to flow around easily in the water?
    (a) Small-sized body
    (b) Streamlined body
    (c) Presence of thin skin
    (d) Presence of scales on their body
    
    
13. Birds can fly but not humans. Which of the following correctly explains the reason for the same? 
    (a) They have long bones.
    (b) They have extra forelimbs.
    (c) They have strong hind bones.
    (d) They have hollow and light bones.
    
    Subjective Questions
    
    
14. The image shows a joint found at the elbow.
    
    (a) Which type of joint is present between the humerus and the ulna?
    (b) Give one more example of the above joint.
    (c) Why can our elbows not move backwards?
    
    
15. Why must two muscles work together to move a bone?
    
    
16. Both cockroaches and birds have wings to fly in the air. However, only cockroaches can climb on the walls. What is the likely reason for this?
    
    
17. Why do underwater divers wear fin-like flippers on their feet?
    
    Case-Based Questions
    
    
18. All the bones in our body also form a framework to give a shape to our body. This framework is called the skeleton.
    
    a) How does the structure of the skeletal system support the body?
    (a) It protects the outer skin of the body from any injury.
    (b) It provides a framework that gives shape to the body.
    (c) It provides the site for storing all the nutrients in the body.
    (d) It allows free movement of all the bones during locomotion.
    
    b) The human skeleton is composed of around ………… bones at birth, while the number gradually decreases to ………… bones.
    (a) 305, 206
    (b) 206, 305
    (c) 306, 205
    (d) 205, 306
    
    c) Which of the following is not a part of the skeletal system?
    (a) Skull
    (b) Ribs
    (c) Breastbone
    (d) Heart
    
    
19. Sukriti fell off from her scooty while she was driving to her college. She got herself bruised at several places and felt a sharp pain in her leg. She went to the doctor to examine herself. On examination, the doctor diagnosed that Sukriti had a fracture. He prescribed some medicines and suggested her to follow a proper diet. 
    a) Which technique the doctor must have used to diagnose that Sukriti had a fracture?
    (a) X-ray
    (b) CT scan
    (c) ELISA
    (d) MRI
    
    b) What is the use of the above technique?
    c) What precaution should one take when one gets a fracture?
    d) What kind of food should we take for proper growth and upkeep of bones?
    
    Assertion-Reasoning Questions
    
    Below questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
    
    
    
20. Assertion (A): The human skeleton is made up of bones, joints, and cartilage.
    Reason (R): Cartilage is hard and tough, but bones are softer than cartilage. 
    
    
21. Assertion (A): The place where two or more bones are joined together in a skeleton is known as a joint.
    Reason (R): Tendons connects muscles to bones.

Objective Type Questions

1. Match the items in Column A with the items in Column B.
   
   
   Solutions:
   (a) Ball and socket joint – (ii) Shoulder 
   (b) Saddle joint – (iv) Thumb
   (c) Fixed joint – (iii) Skull
   (d) Gliding joint – (i) Wrist
   
   
2. Fill in the blanks by choosing the appropriate word from those given in the brackets.
   (fixed, hinge, pivot, ball and socket)
   (a) In …………………. joint, the rounded end of one bone fits into the cavity of the other bone.
   (b) A …………………. joint is where a cylindrical bone rotates in a ring.
   (c) …………………. joints bring about movement in only back and forth direction.
   (d) Joints at which bones cannot move are called …………………. joints.
   
   Solutions:
   (a) Ball and socket 
   (b) Pivot
   (c) Hinge
   (d) Fixed
   
   
3. Few organisms are shown below. Identify the organism based on the clues provided.
   
   (a) My foot is a thick structure made of strong muscles which helps in dragging my body. I move in a wavy motion. Who am I?
   (b) I do not have bones but can move forward by repeated muscle expansions and contractions. I have a large number of tiny bristles under my body. Who am I?
   (c) I have hollow and light bones which help me fly in air. My shoulder bones are strong, and breastbones are modified. Who am I?
   (d) I have a streamlined body and a skeleton covered with strong muscles. I also have fins. Who am I?
   (e) I have three pairs of modified legs and two pairs of wings. I have distinct muscles which enable me to fly, walk and climb. Who am I?
   
   Solutions:
   (a) Snail
   (b) Earthworm
   (c) Bird
   (d) Fish
   (e) Cockroach
   
   
4. Few structures associated with the human skeletal system are shown below. Identify these structures.
   
   
   Solutions: A – backbone; B – Rib cage; C – Shoulder bones; D – Pelvic bones
   
   Multiple Choice Questions
   
   
5. Vivek observed a joint in the neck. He claimed that the joint is a pivotal joint. Is the claim made by Vivek, correct?
   
   (a) No, as hinge joint is present in the head area.
   (b) No, as pivotal joint is present in the jaw portion only.
   (c) Yes, as it allows the individual to move its head in all directions.
   (d) Yes, as it allows forward and backward bending and right or left turning of head.
   
   Correct Option: (d) Yes, as it allows forward and backward bending and right or left turning of head
   Solution: The joint present in our neck is called the pivotal joint. It is a type of movable joint. It allows us to move our head forward and backward as well as sideways.
   
   
6. The given picture shows the bones from the elbow and leg region. What is the similarity in the bones of these regions?
   
   (a) The bones of both regions have the same length.
   (b) The bones of both regions can move in all directions.
   (c) The bones of both regions have the same type of joint.
   (d) The bones of both regions are attached to the pelvic girdle.
   
   Correct Option: (c) The bones of both regions have the same type of joint
   Solution: Elbows and knees have hinge joints. A hinge joint is formed when two bones are joined together. This type of joint allows back and forth movement in one plane only.
   
   
7. The given image shows the human backbone which extends through most of the body. How does the backbone differ from the thigh bone, femur?
   
   (a) Backbone is made of many small bones, while femur is a long bone.
   (b) Backbone is a long bone, while femur is made of many small bones.
   (c) Backbone is the smallest bone of the body, while femur is the longest bone.
   (d) Backbone is the longest bone of the body, while femur is the smallest bone.
   
   Correct Option: (a) Backbone is made of many small bones, while femur is a long bone.
   Solution: Backbone or vertebral column is composed of 33 small, ring like bones called vertebrae joined end to end. The thigh bone, femur consists of one long bone.
   
   
8. The image shows how the muscles help in the movement of the arm.
    
   Based on the image, what will be the length of the muscles during bending?
   (a) Both biceps and triceps relax
   (b) Both biceps and triceps contract
   (c) The biceps contract while the triceps relax
   (d) The biceps relax while the triceps contracts
   
   Correct Option: (c) The biceps contract while the triceps relax
   Solution: The biceps and triceps act against one another to bend and straighten the elbow joint. To bend the elbow, the biceps contract and the triceps relax. To straighten the elbow, the triceps contract and the biceps relax.
   
   
9. Meena observed the movement of an organism that lacks bones. Based on the manner of movement, which organism is it likely to be?
   
   (a) Ant
   (b) Cockroach
   (c) Earthworm
   (d) Snake 
   
   Correct Option: (c) Earthworm
   Solution: The earthworm does not have bones. It has muscles which help to extend and shorten the body. Repeated muscle expansions and contractions help the earthworm to move through the soil.
   
   
10. The table lists the characteristic features of body movements of various organisms.
    
    Which organisms show these movements?
    (a) A – Fish; B - Snail
    (b) A – Snail; B - Snake
    (c) A – Bird; B - Cockroach
    (d) A – Snake; B – Earthworm
    
    Correct Option: (b) A – Snail; B - Snake
    Solution: The foot of the snail is a thick structure made of strong muscles which helps in dragging the shell. Snake curves its body into loops that pushes the body forward.
    
    
11. The given image shows the movement of a snake and a snail. What could be the likely reason for the movement in snakes to be sidewinding and that in snails to be in a wavy motion?
    
    (a) In snakes, bones are present that are absent in snails.
    (b) In snails, thin muscles are more compared to snakes.
    (c) In snakes, thick muscles are present that are absent in snails.
    (d) In snails, the number of bones is more as compared to snakes.
    
    Correct Option: (a) In snakes, bones are present that are absent in snails.
    Solution: Snakes have a long backbone and many thin muscles. The foot of the snail is a thick structure made of strong muscles which helps in dragging the shell.
    
    
12. Which of the following enables fishes to flow around easily in the water?
    (a) Small-sized body
    (b) Streamlined body
    (c) Presence of thin skin
    (d) Presence of scales on their body
    
    Correct Option: (b) Streamlined body
    Solution: Presence of streamlined body allows water to flow around easily and enables fishes to move in water.
    
    
13. Birds can fly but not humans. Which of the following correctly explains the reason for the same? 
    (a) They have long bones.
    (b) They have extra forelimbs.
    (c) They have strong hind bones.
    (d) They have hollow and light bones.
    
    Correct Option: (d) They have hollow and light bones.
    Solution: Birds have light and hollow bones which makes their body light which allows them to lift themselves easily from the ground.
    
    Subjective Questions
    
    
14. The image shows a joint found at the elbow.
    
    (a) Which type of joint is present between the humerus and the ulna?
    (b) Give one more example of the above joint.
    (c) Why can our elbows not move backwards?
    
    Solution:
    (a) Hinge joint is present between the humerus and the ulna.
    (b) Hinge joint is found in the knee, toes, and the fingers.
    (c) The elbow has a hinge joint. This type of joint allows movement in one plane only. Therefore, our elbow cannot move backwards. Hinge joints do not naturally rotate or move from side to side. However, these unnatural movements can occur if someone sustains an injury to a hinge joint.
    
    
15. Why must two muscles work together to move a bone?
    
    Solution:
    A muscle can only pull, it cannot push. Thus, two muscles must work together to move a bone. When one muscle contracts, the bone is pulled in that direction while the other muscle of the pair relaxes. To move the bone in the opposite direction, the relaxed muscle contracts to pull the bone towards its original position, while the first relaxes.
    
    
16. Both cockroaches and birds have wings to fly in the air. However, only cockroaches can climb on the walls. What is the likely reason for this?
    
    Solution:
    Cockroaches can walk, climb, and fly in the air. There are two pairs of wings attached to their body behind the head which help them to fly. They have distinct muscles present in their body. They have three pairs of modified legs which help them in walking and climbing. Birds lack these modified legs and so, are unable to climb like cockroaches.
    
    
17. Why do underwater divers wear fin-like flippers on their feet?
    
    Solution:
    The underwater divers wear fin-like flippers on their feet because it helps them to swim easily in water. The shape of the flippers is like the fin of a fish which helps the divers to easily pass through the water.
    
    Case-Based Questions
    
    
18. All the bones in our body also form a framework to give a shape to our body. This framework is called the skeleton.
    
    a) How does the structure of the skeletal system support the body?
    (a) It protects the outer skin of the body from any injury.
    (b) It provides a framework that gives shape to the body.
    (c) It provides the site for storing all the nutrients in the body.
    (d) It allows free movement of all the bones during locomotion.
    
    b)The human skeleton is composed of around ………… bones at birth, while the number gradually decreases to ………… bones.
    (a) 305, 206
    (b) 206, 305
    (c) 306, 205
    (d) 205, 306
    
    c) Which of the following is not a part of the skeletal system?
    (a) Skull
    (b) Ribs
    (c) Breastbone
    (d) Heart
    
    a) Correct option: (b) It provides a framework that gives shape to the body.
    Solution: The bones of the skeleton provide a framework which holds our body together. They also give shape to the body.
    
    b) Correct option: (a) 305, 206
    Solution: The human skeleton is composed of around 305 bones at birth. It decreases to 206 bones by adulthood after some bones have fused together.
    
    c) Correct option: (d) Heart
    Solution: The skeleton consists of skull, backbone, ribs, breastbone, shoulder bones, hip bone, arm bones and leg bones. Heart is a part of the circulatory system.
    
    
19. Sukriti fell off from her scooty while she was driving to her college. She got herself bruised at several places and felt a sharp pain in her leg. She went to the doctor to examine herself. On examination, the doctor diagnosed that Sukriti had a fracture. He prescribed some medicines and suggested her to follow a proper diet. 
    a) Which technique the doctor must have used to diagnose that Sukriti had a fracture?
    (a) X-ray
    (b) CT scan
    (c) ELISA
    (d) MRI
    
    b) What is the use of the above technique?
    c) What precaution should one take when one gets a fracture?
    d) What kind of food should we take for proper growth and upkeep of bones?
    
    a) Correct option: (a) X-ray
    Solution: An X-ray is usually taken to find out whether the bone of a person has been fractured during an accident.
    
    b) The X-ray images show the shape and the number of bones in various parts of our body. Doctors use these images to examine the dislocations and fractures in the bone.
    
    c) The following precautions should be taken when one gets a fracture:
    • Never try to reset the bones.
    • Place the injured part in a comfortable position.
    • Take care to avoid jerk or movement of the injured part.
    
    d) For proper growth and upkeep of bones, we need to take foods which are rich in calcium, phosphorus, vitamins and proteins. Milk, curd, fruits, vegetables, and eggs contain the required nutrients.
    
    Assertion-Reasoning Questions
    
    Below questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
    
    
    
20. Assertion (A): The human skeleton is made up of bones, joints, and cartilage.
    Reason (R): Cartilage is hard and tough, but bones are softer than cartilage. 
    
    Correct Option: (c) A is true but R is false
    Solution: The human skeleton is made up of bones, joints, and cartilage. Bones are hard and tough, but cartilage is softer than bones.
    
    
21. Assertion (A): The place where two or more bones are joined together in a skeleton is known as a joint.
    Reason (R): Tendons connects muscles to bones.
    
    Correct Option: (b) Both A and R are true but R is not the correct explanation of A.
    Solution: The place where two or more bones are joined together in a skeleton is known as a joint. The elastic tissue that connects the muscle to the bone and plays a key role in the functioning of joints are known as tendons.