ClassX Video Lessons Youtube Channel Smile and Learn English Locomotor system for kids – Bones and Muscles of the Human Body
Our body is like a super cool machine with different systems that help us move, think, and grow. Two important systems that help us move are the skeletal system and the muscular system. Together, they make up what we call the locomotor system.
The skeletal system is like the strong frame of a house. It’s made up of bones, joints, and something called cartilage. Bones are hard and give our body its shape. Imagine if we didn’t have bones; we’d be all wobbly like jelly! Joints are like hinges that connect our bones and help us move. Cartilage is softer than bones and is found in places like our nose and ears.
Did you know we have more than 200 bones in our body? Some of these bones are the skull, which protects our brain, and the spinal cord, which helps us stand tall. We also have bones like the humerus in our arm, ribs that protect our heart and lungs, and the femur, which is the longest bone in our leg. Other important bones include the jawbone, vertebrae (the bones in our spine), clavicles (collarbones), shoulder blades, ulna and radius (in our arms), sternum (chest bone), pelvis (hip bone), kneecap, tibia, and fibula (in our legs).
The muscular system is made up of muscles that help us move by getting shorter (contracting) and longer (relaxing). Muscles are stretchy and also protect our organs. They work together with the bones to help us do things like run, jump, and play. Muscles are attached to bones by strong fibers called tendons.
Our body has more than 600 muscles! Some of these muscles include the biceps in our arms, pectorals in our chest, abs in our tummy, masseter in our jaw, deltoids in our shoulders, quadriceps in our thighs, trapezius in our back, triceps in our arms, glutes in our bottom, and calves in our lower legs.
Did you know that the smallest bone in your body is in your ear? It’s called the stapes, and it’s smaller than a grain of rice!
Isn’t it amazing how our bones and muscles work together to help us move and play? If you want to learn more about the human body, there are lots of fun videos and resources out there. Keep exploring and discovering new things!
Bone and Muscle Hunt: Go on a scavenger hunt around your home or classroom to find objects that remind you of bones and muscles. For example, a wooden chair leg could represent a bone, and a rubber band could represent a muscle. Once you’ve found your items, explain why you chose them and how they are similar to bones or muscles in the human body.
Build a Skeleton: Use craft sticks, pipe cleaners, or straws to create a simple model of a human skeleton. Try to include some of the major bones like the skull, spine, arms, and legs. Once your skeleton is complete, use playdough or clay to add muscles to your model. Discuss how the bones and muscles work together to help us move.
Muscle Movement Experiment: Try this fun experiment to see how muscles work. Hold a small weight or a can of food in your hand and bend your arm at the elbow. Feel how your bicep muscle contracts and gets shorter. Now, straighten your arm and feel how the muscle relaxes and gets longer. Think about other movements you do every day and which muscles help you perform them.
Sure! Here’s a sanitized version of the YouTube transcript:
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**Systems of the Human Body**
**Skeletal System**
The skeletal system is made up of bones, joints, and cartilage. Bones are hard and support our entire body. Without bones, our body would be like jelly. Joints connect our bones and allow movement in our skeleton. Cartilage is softer and more elastic than bones, and you can find it in your nose and ears.
The muscular system and skeletal system together make up our locomotor system. We have more than 200 bones, including our skull, spinal cord, humerus, ribs, and femur. Other bones include the jawbone, vertebrae, clavicles, shoulder blade, ulna, radius, sternum, pelvis, and kneecap, as well as the tibia and fibula.
**Muscular System**
The muscular system is made up of muscles that enable movement by contracting and relaxing. Muscles are elastic and also protect our organs. Together with the skeletal system, they form our locomotor system. Muscles connect to our bones through fibers called tendons. The connection of both systems, directed by the nervous system, allows us to move. We have more than 600 muscles throughout the body, including the biceps, pectorals, abs, masseter, deltoids, quadriceps, trapezius, triceps, glutes, and calves.
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