| A | B |
|---|
| Tissue | A group of similar cells that perform the same function |
| Muscle Tissue | Tissue that can contract |
| Nervous Tissue | Directs and controls the process of movement |
| Connective Tissue | Tissue that provides support |
| Epithelial Tissue | Skin is an example |
| Organ | A structure that is composed of different kinds of tissue |
| Organ System | A group of organs that work together to perform a major function |
| Homeostasis | The process by which an organism's internal environment is kept stable in spite of changes in the external environment |
| Skeleton | All the bones in your body |
| Vertebrae | 26 small bones, your backbone, the center of the skeleton |
| Joint | A place in the body where two bones come together |
| Ligament | Connective tissue between bones and joints |
| Cartilage | Connective tissue that is more flexbile than bone |
| Compact Bone | Hard and dense bone |
| Marrow | The spaces in bone contain a soft connective tissue called |
| Spongy Bone | Bone with many small spaces between it |
| Involuntary Muscle | Muscles that are not under conscience control, responsible for essential activities such as breathing and digesting food |
| Voluntary Muscle | Muscles under conscience control |
| Tendon | The strong connective tissue that attaches muscle to bone is called a |
| Skeletal Muscle | Muscles that are attached to bones also called striated |
| Cardiac Muscle | Muscles found in the heart |
| Striated Muscle | Muscle cells appear to be banded with lines |
| Smooth Muscle | Involuntary muscles, react slowly |
| Epidermis | The outer layer of skin mostly dead cells |
| Dermis | The inner layer of skin, contains sweat glands, nerves and blood vessles |
| Melanin | Pigment or colored substance that gives skin its color |
| Pore | The openings in the skin through which perspiration exits the body are called |
| Neuron | Cells that carry information through your nervous |
| Nerve Impulse | The message that a neuron carries |
| Axon | Carries impulses away from the cell body |
| Dendrite | Carry impulses toward the neurons cell body |
| Nerve | A bundle of nerve fibers |
| Sensory Neuron | Picks up stimuli from teh internal or external environment |
| Interneuron | Carries impulses from one neuron to another |
| Motor Neuron | Sends an impuls to a muscle or gland which will then respond |
| Synapse | The junction where one neuron can transfer an impulse to another structure |
| Central Nervous System | The control center of the body includes the brain and spinal cord |
| Peripheral Nervous System | Includes all nerves located outside the brain and spinal cord |
| Respiration | The process by which cells break down simple food molecules to release energy they contain |
| Hypertension | A condition in which a person's blood pressure is consistently higher than normal |
| Hemoglobin | An iron-containing protein that binds chemically to oxygen molecules |
| Alveoli | Tiny sacs of lung tissue specialized for the movement of gases between air and lungs |
| Bronchi | The passages that direct air into the lungs |
| Atrium | Each of the two upper chambers of the heart that recieve blood that comes into the heart |
| Addiction | The physical dependence on a substance |
| Cochlea | A snail shaped tube in the inner ear that is lined with receptor cells that respond to sound |
| Nephrons | Small filtering structure found in the kidneys that removes wastes from the blood and produce urine |
| Kidney | A major organ in the excretory system that removes urea and other wastes from the blood |
| Atherosclerosis | A condition in which an artery wall thickens from a buildup of fatty materials |
| Osteoperosis | Mineral loss in the bones, a condition when the bones become weak and break easilly |
