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The basic unit of structure and
function in a living thing. |
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| The outside boundary of a cell. |
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| The control center of a cell that directs the cell's activities and contains the information that determines the cell's form and function. |
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| The material within a cell apart from the nucleus. |
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| A group of similar cells that perform the same function. |
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| A body tissue that contracts or shortens, making body parts move. |
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| A body tissue that carries electrical messages back and forth between the brain and every other part of the body. |
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| A body tissue that provides suport for the body and connects all of it's parts. |
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| A body tissue that covers the surfaces of the body, inside and out. |
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| A structure in the body that is composed of different kinds of tissue. |
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| A group of organs that work together to perform a major function in the body. |
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| The process by which an organism's internal environment is kept stable in spite of changes in the external enviroment. |
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| The reaction of a person's body to potentially threatening, challenging, or disturbing. |
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| That is because some of your muscles are not under your conscious control. Those muscles are called involuntary muscles. |
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| The muscles that are under your conscious control are called voluntary muscles. |
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| Every time you walk across a room, you are using skeletal muscles. Skeletal muscles are attached to the bones of your skeleton and provide the force that moves your bones. |
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| A tendon is a strong connective tissue that attaches muscle to bone. |
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| Skeletal muscle cells appear banded, or striated. For this reason, skeletal muscle is sometimes calledstriated muscle |
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| The inside of many internal organs, such as the stomach and blood vessels, contain smooth muscles. |
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| The tissue called cardiac muscle is found only in your heart. |
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a malignant and invasive growth or tumor, especially oneoriginating in epithelium, tending to recur after excisionand to metastasize to other sites. |
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| is made up of all the bones in your body. The number of bones in your skeleton, or skeletal system, depends on your age. |
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| (vurtuh bray) (singular:vertebra), that make up your backbone. |
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| is a place in the body where two bones come together. |
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| Most joints have a second type of connective tissue, called cartilage(kahr tuh lij), which is more flexible than bone. |
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| which is more flexible than bone. |
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| which is hard and dense, but not solid. As you can see in Figure 8, small canals run through the compact bone. |
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| has many small spaces within it. |
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| There are two types of marrow—red and yellow. Red bone marrow produces some of the body’s blood cells. |
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| A condition in which the body’s bones become weak and break easily. |
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| A fracture, or a break in a bone, can occur when you fall in such a way that all of your weight is placed on only a few bones. |
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| A dislocation occurs when the end of a bone comes out of its joint. |
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| A sprain occurs when ligaments are stretched too far and tear in places. |
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| X-rays are a form of energy that travels in waves, like the light that your eyes can see. |
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MRI
( Magnetic Resonance Imaging ) |
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| An MRI scanner is a large machine that contains electromagnets. |
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| Arthritis is a disease of the joints that makes movement painful. |
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| Doctors make a small incision and insert a slim, tube-shaped instrument called an arthroscope |
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| The epidermis is the outer layer of the skin. In most places, the epidermis is thinner than the dermis. |
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| melanin, a pigment, or colored substance, that gives skin its color. |
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| The dermis is the inner layer of the skin. |
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| Sweat glands produce perspiration, which reaches the surface through openings called pores. |
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| Strands of hair grow within the dermis in structures called follicles |
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