Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Cytokinesis wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cellular differentiation wikipedia , lookup
Chromatophore wikipedia , lookup
Cell growth wikipedia , lookup
Cell culture wikipedia , lookup
Extracellular matrix wikipedia , lookup
List of types of proteins wikipedia , lookup
Chapter 1 Key Terms: Section 1: Cells and Homeostasis Cells- The basic unit of structure and function in a living thing Cell membrane- the outside boundary of the cell Nucleus- the control center that directs the cell’s activities and contains the information that determines the cell’s form and function Cytoplasm- the material within the cell apart from the nucleus, made up of a clear jellylike substance containing many cell structures called organelles Tissue- a group of similiar cells that perform the same function Muscle tissue- can contract and shorten Nervous tissue- carries electrical message back and forth between the brain and other parts of the body Connective tissue- provides support for your body and connects all its parts Epithelial tissue- covers the surfaces of the body, inside and out Organ- a structure 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 to keep internal balance Stress- the reaction of your body to potentially threatening, challenging, or disturbing events Section 2: Skeletal System Skeleton- framework of body, made up of all the bones in your body Vertebrae- 26 small bones that make up your back bone Joint- place where two bones come together Ligament- strong connective tissues that hold movable joints together Cartilage- connective tissue that protects the ends of bones and keeps them from rubbing together Compact bone- the hard and dense part of bones Spongy bone- inner layer of bone that has many small spaces within it Marrow- soft connective tissue within the spaces of bones Osteoporosis- a condition in which the body’s bones become weak and break easily Section 4: Muscular System Involuntary muscle- muscles not under our conscious control, control breathing and digestion Voluntary muscle- muscles under your conscious control Skeletal muscle- attached to bones and provide force to move your bones Tendon- strong connective tissue that attaches muscle to bone Striated muscle- muscle tissue that appears banded (ex. Skeletal muscle) Smooth muscle- involuntary muscle found in many internal organs Cardiac muscle- found in your heart Section 5: Integumentary System Epidermis- the outer layer of the skin Melanin- pigment, or colored substance, that gives skin its color Dermis- the inner layer of the skin Pore- openings in the surface of your skin Follicle- structure in the dermis of your skin through which hair grows Cancer- a disease in which some cells in the body divide uncontrollably