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5th Grade Science
Muscular & Skeletal System Review
| Question | Answer |
|---|---|
| It draws the arm forward and across the chest; and rotates inwards. This muscle helps move the rib cage during heavy breathing. | Pectoral muscle |
| These muscles help form and move the chest wall; turns upper body and catches breath. | intercostals |
| This muscle's function is to move the jaw up and down. | masseter |
| These muscles flex the thighs and hip, and extends the legs; straightens the knees. | quadriceps |
| This muscle flex and rotate/turn the head. | sternomastoid |
| This muscle rotates the hip externally and internally abducts the hip; rotates thigh. | sartorius |
| This muscle raises the upper arm. | deltoid |
| These muscles help straighten the arm. | triceps |
| This muscle allows the bones to move; bends arm. | biceps |
| This muscle makes up a large portion of the shape and appearance of the buttocks; straightens hip. | gluteus maximus |
| Two basic groups of muscles. | voluntary and involuntary |
| Muscles that help you move when you want to; you can control. | voluntary; skeletal muscles |
| Why aren't all your body muscles voluntary muscles? | You would have to think about everything you did, including making your heart beat, breathing, and moving food through the digestive system. |
| Your eyelid muscles can classified as voluntary and involuntary because | most of the time you do not control blinking, but you can if you want to. |
| Muscles that could be described as striped sausages. | skeletal or striated muscles |
| The only place where cardiac muscle can be found. | your heart |
| Three main jobs of the skeletal system. | 1) to shape and support your body 2)to protect the organs 3)to work with the muscular system |
| Two minor jobs of the skeletal system. | 1) making the blood cells 2)a warehouse for fat cells, calcium, and other minerals |
| How many bones are in an adult human body? | 206 bones |
| Two minerals in the bones. | Calcium and Phosphorus |
| The four layers of the bone. | 1)periosteum 2)compact bone 3)spongy bone 4)marrow |
| What does red and yellow marrow do? | Red marrow produces red blood cells. Yellow marrow stores the fat cells. |
| Four types of bone. | 1)flat bone 2)short bone 3)long bone 4)irregular bone |
| What connects a bone to another bone? | A ligament connects bones to bones. |
| Cartilage has 3 jobs. | Cartilage protects bones; provides flexibility; gives body shape. |
| Where can you find cartilage? | 1)tip of the nose 2)top of the ears 3)ends of the bones |
| What is a joint? | A joint is where two bones meet or where cartilage and bone meet. |
| Five kinds of joints. | 1] pivot 2]ball & socket 3]hinged 4]fixed-skull 5]gliding |
| Bone fracture | greenstick little break |
| Bone fracture simple | bone becomes into two |
| Bone fracture compound | a break through the skin |
| Involuntary muscles have movements | you can't control; smooth muscle |
| Tendons are stretchy connective tissue | that attach muscles to bones. |
| hypertrophy | A condition in which the muscles increase in size from being used too much. |
| atrophy | A condition in which muscles reduce in size from lack of use. |
| muscle tone | the way that our muscles look and work; good muscle tone is developed by using muscles properly. |
| cramp | a painful muscle contraction |
| tetanus | a severe type of muscle contraction; persistant contraction that won't quit |
| spasm | an involuntary contraction of a muscle |
| epilepsy | very severe muscle spasms; an epileptic seizure may lead to convulsions. |
| hernia | when a muscle pushes through into another area when it's not supposed to be; blood does not flow normally |
Created by:
swinsoa
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