How Do Bones Work? Human Skeleton Facts for Kids - What is the Skeleton? - Skeleton Facts for Kids — Transcript

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1. 0:00welcome to learning more dot com
2. 0:04today we're going to talk about bones
3. 0:09i was watching scooby doo
4. 0:11it was about a skeleton and i was just
5. 0:14wondering why we have bones in our
6. 0:17bodies
7. 0:19so i decided to find out
8. 0:23did you know
9. 0:25bones make up the framework
10. 0:27of our bodies we call this framework the
11. 0:31skeleton bones do lots of jobs
12. 0:35they keep us standing upright they
13. 0:38support our body if we had no bones
14. 0:42we would be like a big pile of jelly
15. 0:46they also protect our organs like our
16. 0:49heart liver and lungs these organs are
17. 0:53soft and squishy but the bones protect
18. 0:56them our bones also help us to move
19. 1:02now that's a lot of jobs then a little
20. 1:05skeleton and my head appeared
21. 1:09have never wondered about
22. 1:12off i went to find out well bones are
23. 1:15not just
24. 1:16well material they have different parts
25. 1:2070
26. 1:21of the bone is not actually living
27. 1:24tissue
28. 1:25it's made up of hard minerals like
29. 1:28calcium
30. 1:30that's why you have to drink milk
31. 1:32to make your bones strong
32. 1:35most human bones have four parts
33. 1:38the outside part of the bone is called
34. 1:40the periosteum
35. 1:42this is a thin
36. 1:43but very dense flare that has nerves and
37. 1:47blood vessels these nursery bones
38. 1:51compact bone is next it is smooth and
39. 1:55very hard
40. 1:57hand selloffs bunk on snacks
41. 2:00this looks a bit like a sponge
42. 2:03but is much stronger
43. 2:06on the very inside of many bones is the
44. 2:09bone marrow
45. 2:12it looks a bit like jelly and it makes
46. 2:15new blood cells for the body
47. 2:18aaron how many bones do we have in our
48. 2:20bodies well you'll be shocked to know
49. 2:24that babies actually have more bones
50. 2:27than adults
51. 2:29babies skeletons are made up of
52. 2:33more than 300 parts by the time we
53. 2:36become adults we only have 206 bones
54. 2:40don't worry babies don't lose bones
55. 2:43it's just that some of our baby bones
56. 2:45are made partly or completely of
57. 2:49cartilage
58. 2:50as we grow bigger and heavier cartilage
59. 2:54is slowly replaced by harder bone
60. 2:57some smaller bones join together to make
61. 3:01one bigger bone now
62. 3:03here's a question
63. 3:05did you know how a skeleton has to move
64. 3:09i feel like i'm becoming a bone expert
65. 3:12where two bones meet is called a joint
66. 3:15some joints are fixed and don't move for
67. 3:18example the joints in the skull before
68. 3:21they have grown together some joints
69. 3:24move a little like the joints in your
70. 3:26spine some joints move a lot you also
71. 3:29need muscles to work with your bones
72. 3:32how do we keep our bones healthy
73. 3:36eat healthy food especially dairy foods
74. 3:39these give your bones the calcium they
75. 3:42need get plenty of exercise and make
76. 3:45sure that you protect your bones when
77. 3:47you play sport i'm beginning to wonder
78. 3:50lots more about the human body i wonder
79. 3:53what i will explore tomorrow i hope you
80. 3:57enjoyed my story why not subscribe
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82. 4:03www.learnymall.com