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Chapter 14 Term

Science Terms

TermDefinition
Cell Is the basic unit of structure and function in a living thing.
Cell Membrane Form the outside boundary of the cell.
Nucleus Is the control center that directs the cell's activities and contains the cell's form and function
Cytoplasm The material within a cell apart from the nucleus
Tissue Is a group of similar cells that perform the same function
Muscle Tissue Can contract or shorten
Nervous Tissue Directs and controls the process
Connective Tissue Provides support for your body and connects all its parts
Epithelial Tissue Surfaces of your body, inside and out, are covered
Organ Is 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 body's tendency keep an internal balance
Stress Is the reaction of your body to potentially threatening, challenging , or disturbing events
Skeleton Is made up of all the bones in your body
Vertebrae That make up your backbone
Joint Is a place in the body where two bones rather than fewer large ones
Ligaments Movable joints are held together by strong connective tissue
Cartilage Joints have a second type of connective tissue
Compact Bone The outer membrane is a layer which is hard and dense, but not solid
Spongy Bone Has many small spaces within it
Marrow The spaces in bones contain a soft, connective tissue
Osteoporosis A condition in which the bones body's become weak and break easily
Involuntary Muscle The muscles that are not under your conscious control
Voluntary Muscle The muscles that are under your conscious control
Skeletal Muscle Are attached to the bone of your skeleton and provide the force that moves your bones
Tendon Is a strong connective tissue that attaches muscle to bone
Striated Muscle A muscle that appears banded
Cardiac Muscle Is found only in your heart
Epidermis Is the outer layer of the skin
Melanin A pigment, or colored substance, that gives skin its color
Dermis Is the inner layer of the skin
Pores An opening through which sweat reaches the surface of your skin
Follicles Structure in the dermis of the skin from which a strand of hair grows
Created by: s730426