Exam 4: From Cells to Organ Systems

The ability of living organisms to maintain a constant internal environment despite changes in the external environment is ________.

Tanning increases the number and density of melanocytes in the epidermis.

Skeletal muscle attaches to ________, which connect the muscle to bone.

A(n) ________ epithelium allows gas exchange in the lungs.

Skin functions to

All of the following are types of connective tissue EXCEPT which one?

Match each of the following diagrams in the figure below to the type of tissue it represents. -muscle A) B) C) D)

What kind of cells make up the basement membrane?

Match each of the following items with its description. -involuntary

A(n) ________ muscle has one nucleus per individual cell and is blunt ended with gap junctions between adjoining cells.

Spot desmosomes are actually ________ junctions, which allow for slight flexibility in an epithelium.

A group of cells that are similar in structure and work together to perform a common function are referred to as a(n)

Match each of the following items with its description. -ability to contract

A group of two or more tissues that function as a unit is a(n) ________.

If you were in a bike accident that resulted in bleeding, explain why the injury must be deeper than the epidermis.

Using the figure above, identify the type of cell junction used in each of the following. -These junctions join cardiac cells, allowing transfer of ions and water between cells. A) B) C)

Match each organ system with its description. -promotes gas exchange between the body and the environment

Nervous tissue is composed of two types of cells: ________ that conduct impulses and ________ that surround and protect these cells.

Although the cells of a multicellular organism are specialized for certain functions, those cells must also be integrated and organized in order to work together to benefit the organism.

Match each organ system with its description. -responds to stimuli by producing electrical and chemical signals