Medical Terminology Review Directions: Fill in the blank with the most appropriate term. 1. At its most simple level of structure, the body is composed of ________________. 2. The fundamental unit of all living things, including the human body is the _____________. 3. A group of cells working together to form the same function is a (n) ______________. 4. Various types of tissue work together in the human body to compose a (n)_____________. 5. The steady state of equilibrium existing in the body is called ___________________. 6. Among the systems coordinating homeostasis are the nervous system and the ________________. 7. The body is erect with eyes forward, feet together, arms at the side, and palms forward in the _________________. 8. The directional term used to describe the front of the body on the belly side is ________________. 9. Although the term dorsal is sometimes used, the preferred term when referring to the back side of a human is ________________. 10. In anatomical nomenclature, the term superior refers to an aspect of the body toward the __________________. 11. The anatomical term referring to a side away from the midline is ____________________. 12. The term proximal refers to a point close to where an extremity attaches to the body _______________. 13. In the anatomical nomenclature, the hand would be considered distal to the _________________. 14. A vertical plane dividing the body into right and left sides represents a (n) ____________________. 15. A longitudinal plane dividing the body into right and left sides represents a (n) __________________. 16. A horizontal plane divides the body into superior and inferior parts and is also known as a (n)_____________________. 17. A midsagittal plane divides the body into equal right and left halves, but if the halves are unequal the plane is said to be _______________________. 18. The dorsal body cavity is subdivided into the spinal cavity and the _______________. 19. Two major subdivisions of the ventral body cavity are the abdominopelvic cavity and the ________________. 20. The heart, esophagus, trachea, and bronchi are all located in a portion of the body called the _________________. 21. The large dome-shaped muscle separating the abdominopelvic cavity from the thoracic cavity is the ____________________. 22. The abdominal subdivision and pelvic subdivision are portions of the abdominopelvic cavity, which is also known as the ________________. 23. Immediately superior to the umbilical region is a region of the abdominopelvic cavity known as the ____________________.