According to the American Association for the Surgery of Trauma grading system, a laceration to the kidney under one centimeter in depth without urine leak would be classified as a ____ injury.

Which of following embryonic germinal tissue layers form all tissues and organs? 1. Endoderm 2. Mesoderm 3. Ectoderm 4. Mectoderm

a. 2 only b. 2 and 3 only c. 1, 2, and 4 only d. 1, 2, and 3 only

The ________ is the narrow space or cavity throughout the length of the diaphysis.

A. medullary canal B. endosteum C. cancellous  D. periosteum