Levels of Structural Organization in the Human Body

What is the tissue level?

A group of similar cells working together to perform a function

What are some of the major cell types?

Blood cells, bone cells, muscle cells, fat cells, and nerve cells

What are the 4 different tissue types of the body?

Epithelial tissue - cells are pressed up against one another and can form barriers (think skin) Connective tissue - Cells are embedded in a fluid and protein mixture that varies in consistency from completely liquid (blood) to rigid (bone) Muscle tissue - Collections of cells that are able to contract forcefully in a coordinated way Nervous tissue - Collection of cells that carry information from one place in the body to another (nerves)

What is the organ system level?

Is made up of organs that work together to perform specific and vital functions within the body

What is the organism level? Example: You

Is the life form and all the systems, organs, tissues, cells, and molecules that it contains

What somethings found within a cell?

Nucleus (store genetic material) Endoplasmic reticulum (making molecules) Golgi apparatus (packaging and transporting cell materials) Ribosomes (making proteins)

What are the levels of structural organization in the Human Body?

Organism Organ System Organ Tissue Cell levels

What is the organ level?

Organs are made up of different types of tissues that carries out a specific function

What is the cell level?

The smallest living unit in the human body

What is the relationship between cells and tissues? -There is no relationship between cells and tissues. -Cells are made up of tissues. -Tissues are made up of cells. -Cells make up organ systems, while tissues make up organs.

Tissues are made up of cells.

Organs are _____ -tissues that do not contain cells. -made up of organisms. -only made of one tissue type. -collections of tissues that carry out a specific function.

collections of tissues that carry out a specific function.

Organ systems are -made up of organs. -made up of only one tissue type. -not required in humans. -made up of only one cell type.

made up of organs.

In the human body, -there are many different cell types, and -each cell type has its own tissue type. there is only one cell type but many different organs. -there is one cell in each organ. -there are many different cell types but only four tissue types.

there are many different cell types but only four tissue types.