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GSEB Solutions for Class 7 Science and Technology – Musculo Skeleton System

GSEB Solutions for Class 7 Science and Technology – Musculo Skeleton System (English Medium)

GSEB SolutionsMathsScience
Exercise 86:

Solution 1(a):
There will be no definite shape and structure of the body if there will be no bones in our body.

Solution 1(b):
Elbow, knee, shoulder and wrist have joints.

Solution 1(c):
Shoulder, knee and elbow are flexible joints.

Solution 1(d):
Wrist and leg muscles are inflexible joints.

Exercise 88:

Solution 1(a):
gseb-solutions-for-class-7-science-and-technology-musculo-skeleton-system-1

Exercise 89:

Solution 1(a):
Between bones and skin, we find a mass of tissue that contracts and relaxes. This type of tissue is called as muscle.

Exercise 90:

Solution 1:
Skeleton is formed of bones and ligaments.

Solution 2:
Ligaments are located where there are joints in the body such as knee joint and elbow joint.

Solution 3:
Thigh bone is the longest and the strongest bone of the body.

Solution 4:
Spinal cord is protected by the vertebral column.

Solution 5:
Bones of the head or the skull protects the brain.

Solution 6:
There are two types of joints found in our body. They are movable joints and immovable joints.

Solution 7:
Rib cage protects lungs and heart.

Solution 8:
Spinal cord is found in the vertebral column.

Solution 9:
There are two types of muscles found in the body. They are voluntary and involuntary muscles.

Solution 10:
If there were no bones in our body, then there will be no definite structure and posture of the body.

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