Definitions 1. a structure that consists of two or more types of tissues that work together to
do the same job.
2. made up of neurons, or nerve cells, that carry electrical messages
3. made up of cells that form the body’s structure
4. a group of connected cells that have a similar function
5. takes in oxygen and releases waste gases
6. made up of cells that line body surfaces
7. secretes hormones that regulate other organs and organ systems
8. basic units of structure and function in the human body.
9. a hormone that helps cells absorb sugar from the blood
10. process in which organ systems work to maintain a stable internal
environment
11. made up of cells that have the unique ability to contract, or become shorter
12. a group of organs that work together to carry out a complex overall function
Terms
a. cells
b. connective tissue
c. endocrine system
d. epithelial tissue
e. homeostasis
f. insulin
g. muscle tissue
h. nervous tissue
i. organ
j. organ system
k. respiratory system
l. tissue