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Science
Skeletal system
| Question | Answer |
|---|---|
| What are ligaments | strong bands of connective tissue that hold the bonnes together |
| Cartliage | pads of firm, smooth, slightly elastic connective tissue |
| 2 reasons the human body has a skeleton | 1. to support the soft parts of the body 2. to help muscles move your body by providing places for muscles to attache, while acting as levers themselves |
| 3 reasons the human body has a skeleton | 3. to provide protection for many of the vital organs of the body such as the brain, heart, and lungs. 4. to provide essential minerals, especially calcium, to the body 5. to supply the body with certain blood cells. |
| where are all red blood cells and some white blood cells form? | in bone marrow |
| how many bones does a skeleton have | 206 |
| Name three vital organs protected by the skeleton | heart, lungs, brain |
| what is the connective tissue called that holds bones together | ligaments |
| at what age do your bones stop growing | 25 |
| what material cushions the ends of the bones usually at a joint | cartilage |
| What are the two regions of the skull | cranium and bones of the face |
| Sutures | wavy lines in the cranium |
| What region of the of the skull contains the brain | cranium |
| What is the top region of the skull called | cranium |
| what is the name of the lower jaw | mandible |
| what is the name of the upper jaw | maxilla |
| How many bones does your entire skull contain | 22 |
| What does your cranium protect | brain |
| what is the name given to the joints between two bones in the cranium | sutures |
| periosteum | on the surface of the bone this thin dense membrane contains nerves and blood vessals that help mourish bone tissue |
| Compact (hard) bone | this type of bone is strong, solid, and white in color. It makes up the hard, outside portion of the bone |
| cancellous (spongy) bone | it looks like a sponge with bone marrow filling it's spaces |
| bone marrow | the soft bone marrow, which is found inside many bones, makes most of the red and white blood cells and platelets. |
| cervicle vertebrae | the first seven vertebrae in the spinal column |
| thoracic vertebrae | the next 12 vertebrae in the spinal column. Have ribs attached to them |
| Lumbar vertebrae | the 5 vertebrae after the thoracic vertebrae. They form the lower back |
| Sacrum | the 5 vertebrae after the lumbar vertebrae. These are fused together |
| Coccyx or tailbone | last 4 vertebrae that are fused into one bone. |
| How many individual bones do you find in your spinal column | 33 |
| what is a single backbone called | vertebrae |
| what are the shock absorber pads found between the vertebrae made of | cartilage |
| to what refion of the vertebral column do the hips attach | sacrum |
| what type of vertebrae have hips attached to them | thoracic vertebrae |
| Top seven pairs of ribs | True ribs- attach directly to the sternum |
| Bottom 5 pairs of ribs | False ribs- do not attach to the sternum |
| Bottom 2 pairs of ribs | floating ribs- do not attach in the front |
| Where do the arms attach to the skeleton | at the shoulder girdle or pectoral girdle |
| where do the legs attach to the skeleton | at the pelvic girdle formed by the two pelvic bones |
| how many pairs of ribs does a human normally have | 12 pairs |
| How many pairs of ribs are called true ribs | 7 pairs |
| What are the bottom 2 pairs of ribs called | Floating ribs |
| what is the proper name for the breast bone | sturnum |
| what is another name for the shoulder girdle | pectoral girdle |
| What bone is found in the leg without a counterpart in the arm | kneecap or patella |
| how many bones are located in the wrist | 8 |
| What is the longest bone in the skeleton | Femur |
| Which lower arm bone is capable of rotation | radius |
| what is the name for fingers and toes | phlanges |
| What is the place where two bones meet called | joint |
| what are the two types of joints | movable and immovable joints |
| what type of joint is at the base of the skull | pivot joint |
| what type of movable joint permits the greatest variety of motion | ball-and-socket joint |
Created by:
NiederKC