| A | B |
|---|
| tissue | a group of similar cells working together |
| Your body contains how many types of tissue? | four |
| The four types of tissue | epithelial tissue, connective tissue, muscle tissue, nervous tissue |
| Two or more tissues working together form this | an organ |
| Organs working togehter form this | an organ system |
| How many major organ systems does your bosy have? | Eleven |
| epithelial tissue | covers and protects underlying tissue |
| nervous tissue | sends electrical signals through the body, found in the brain, nerves, and sense organs |
| muscle tissue | made of cells that can contract and relax to produce movement |
| connective tissue | joins, supports, protects, insulates, nourishes, and cushions organs |
| integumentary system | your skin, hair, and nails |
| muscular system | your skeletal muscles move your bones |
| skeletal system | your bones provide a frame to support and protect body parts |
| cardiovascular system | your heart pumps blood through all your blood vessels |
| respiratory system | your lungs absorb oxygen and release carbon dioxide |
| urinary system | removes wastes from the blood and regulates the body's fluids |
| male reproductive system | produces and delivers sperm |
| female reproductive system | produces eggs and nourishes and shelters the unborn baby |
| nervous system | receives and sends electrical messages throughout the body |
| lymphatic system | returns leaked fluids to blood vessels, also helps you get rid of germs |
| digestive system | breaks down the food you eat into nutients that can be absorbed into your body |
| endocrine system | certian glands regulate body functions by sending out chemical messengers. Ovaries and testes. |
| compact bone | bone tissue that does not have any visible open spaces |
| spongy bone | bone tissue that has many open spaces |
| marrow | a soft tissue that bones contain |
| red marrow | produces red blood cells |
| yellow marrow | stores fat |
| cartilage | soft flexible tissue that most bones start out as |
| Why does cartilage have a rubbery texture? | it contains mostly water |
| joint | the place where two or more bones connect |
| ligaments | strong elastic bands of connective tissue that joints are kept together with |
| mechanical advantage | the benefit gained by using a machine is measure by a ratio |
| Smooth muscle is found where? | in the digestive tract of your body |
| Cardiac muscle is found where? | only in your heart |
| Skeletal muscles are attached to what | they are attached to your bones for movement and help protect your inner organs |
| muscle action can be both | voluntary and involuntary |
| tendons | strands of tough connective tissue that connects your skeletal muscles to your bones |
| flexor | a muscle that bends part of your body |
| extensor | a muscle that straighten part of your body |
| sweat glands | produces sweat |
| melanin | a darkening chemical in skin that determines skin color |
| epidermis | the thinner, upper layer of the skin |
| dermis | the deeper, thicker layer of the skin |
| hair follicle | a tiny sac where several layers of tightly packed keratin-filled cells form HAIR |
