Human Body Systems and Organization

An organ is made up of the same type of tissue.

A cell consists of protoplasm and nucleus.

The watery fluid percolating through spaces among the cells is known as blood plasma.

Nutrients are absorbed by the cells from the lymph.

The walls of cells and capillaries act as filters permeable to anything as large as a protein molecule.

If the blood flow stops, diffusion within the body continues.

The two main structures of most organs are the parenchyma and the stroma.

All organs of the body are composed of five types of tissue.

Epithelial tissues include only the outer layer of the skin.

Mechanical tissues are primarily made up of cells.

Muscular tissues are composed of two types of highly specialized cells.

Nervous tissue originates from a different layer of tissue than the outer skin in embryos.