ClassX Video Lessons Youtube Channel Kids Education And Art Human Skeleton | Skeletal System | Types of Bones | Science for kids
Have you ever wondered what keeps our bodies from being all wobbly and floppy? It’s our bones! Bones are super important because they give our bodies shape and help us move around. Imagine trying to stand up or walk without bones—it would be like trying to stand up a jellyfish!
Bones are like the strong, hard parts of our body that help us stand tall, move our arms, and walk. They work together with our muscles to help us move. Bones also protect our important organs inside, like our heart and brain. Grown-ups have 206 bones that fit together to make a strong framework called the skeleton.
Our skeleton is made up of different parts, each with its special job. Let’s explore some of these parts:
The skull is like a helmet for our head. It has 22 bones that protect our brain, which is super important for thinking and controlling our body.
The backbone, or spine, is made of 33 small bones called vertebrae. These bones are shaped like tiny butterflies and help us stand up straight. The backbone also protects the spinal cord, which is like a highway for messages traveling between our brain and body.
The rib cage is a set of curved bones called ribs. We have 12 pairs of ribs that form a cage around our chest. This cage protects our lungs and heart. The last two pairs of ribs are called floating ribs because they aren’t connected to the front of the rib cage.
Our arms, or upper limbs, have several important bones. The upper arm has a long bone called the humerus. The lower arm has two bones, the ulna and the radius. These bones help us bend our arms at the elbow and move our wrists and fingers.
Our legs, or lower limbs, also have important bones. The upper leg has the femur, which is the longest bone in our body. The lower leg has two bones, the tibia and fibula. These bones help us bend our legs at the knee and move our feet.
Did you know that when you were a baby, you had about 300 bones? As you grow, some of these bones join together, which is why adults have 206 bones!
So, next time you run, jump, or even just sit down, remember to thank your amazing skeleton for keeping you strong and moving!
Here’s a sanitized version of the provided YouTube transcript:
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Let’s learn about the human skeleton. What provides rigidity to our body and gives it a definite shape? Bones! Can you imagine a body without bones? A body without bones would be floppy and would just fall flat on the surface like a puddle of skin and muscles.
Bones help us stand upright, move our arms, and walk around. They work together with muscles to bring about movement. Additionally, bones provide protection to our internal organs. An adult human body has 206 bones. These bones join together to form a framework known as the skeleton.
Our skeleton consists of many bones, including the skull, rib cage, backbone, upper limbs, and lower limbs.
**Skull:** Our skull has 22 bones and protects our brain.
**Backbone:** Our backbone consists of 33 small, butterfly-shaped bones known as vertebrae. Thus, our backbone is also called the vertebral column. It protects our spinal cord and helps us stay upright.
**Rib Cage:** The rib cage is made of curved bones known as ribs. We have 12 pairs of ribs, with one rib from each pair on each side of the chest, forming a cage-like structure. Each rib is connected to the backbone at the back and to the breastbone (sternum) in the front. The last two pairs of ribs, the 11th and 12th pairs, are not connected to the breastbone, so they are called floating ribs. The rib cage encloses and protects our lungs and heart.
**Bones of Upper Limbs:** Our arms are known as upper limbs. There is one long bone in the upper arm called the humerus. The lower arm has two bones: the ulna and the radius. The bones of the upper arm and the lower arm meet at the elbow, and many small bones make up our wrist and fingers.
**Bones of Lower Limbs:** Our legs are known as lower limbs. The upper leg has a long bone called the femur, which is the longest bone in our body. The lower leg has two bones: the tibia and fibula. The bones of the upper leg and the lower leg meet at the knee, and many small bones make up our feet.
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