The organ known as the skin is made up of two layers, the epidermis and the dermis. 

The abundant non-cellular material found in connective tissue is called the 

If your blood carbon dioxide levels increase, your brain will send a message to your breathing muscles to increase your breathing rate and depth. This will lower your blood carbon dioxide levels. The above sequence of events is an example of   

Synthesis of phospholipids occurs in the __________?        

We maintain homeostasis by using receptors, control centers, and effectors.  Briefly describe the roles (functions) of each of the three parts.     

In passive diffusion, molecules move from an area of ______________ (low/high) concentration to an area of ________________ (low/high) concentration. 

A nurse wants to inject a shot into your Brachial region.  What body part do you uncover?

The basic functional unit of all living things is the 

If an epithelial tissue is made up of more than one layer of cells, it is  

Identify the organ/structure of the image labeled in B. In the image in part B, what cells would be found in the lumen? One of the two images contains a venule.  Identify the letter of the image and number of the structure where you would find the venule.