Science Test 2

Nervous Tissue

carries messages to and from the brain

Muscle Tissue

causes movement

Which is NOT a type of human tissue? a. connective b. meristem c. muscle d. nervous

b. meristem

Connective Tissue

provides structure and support and often connects other types of tissue together

Organization

An organism is made of organ systems, organs, tissues, and cells that all function together and enable the organism's survival.

Levels of Organization

Cell Tissue Organ Organ System Organism

Organ System

Circulatory System; a group of organs that work together

Cell

Every living thing is made up of cells

Organisms

Multicellular organisms usually have many organ systems. These systems work together to carry out all the jobs needed for the survival of the organisms. In the human body, there are many major organ systems. Each organ system depends on the others and cannot work alone. Example: the cells in the muscle tissue of the stomach cannot survive without oxygen. The stomach cannot get oxygen without working together with the respiratory and circulatory systems.

Tissue

Muscle; a group of cells that work together to perform a task

Organ

Stomach; A group of tissues to perform a job

Tissue

a group of similar types of cells that work together to carry out specific tasks.

Epithelial Tissue

forms the protective outer layer of the skin and the lining of major organs and internal body cavities

Organ Systems (usually organs do not function alone)

groups of different organs that work together to complete a series of tasks. Example: digestive system is made of many organs including the stomach, the small intestine the liver, and the large intestine. These organs and others all work together to break down food and take it into the body. Blood absorbs and transports nutrients from broken down food to cells throughout the body.

Organs

groups of different tissues working together to perform a particular job. Example: stomach is an organ specialized for breaking down food. It is made of all four types of tissue: muscle, epithelial, nervous, and connective. Each type of tissue performs a specific function necessary for the stomach to work properly. Layers of muscle tissue contract and break up pieces of food, epithelial tissue lines the stomach, nervous tissue sends signals to indicate the stomach is full, and connective tissue supports the stomach wall.

4 Types of Tissues

muscle connective nervous epithelial