The skin functions to protect:
a. Inner tissues from _______________________________ .
b. Underlying structures from _____________ and ______________.
The __________ is the largest organ of the body. Among other functions, the
skin regulates body __________________________.
The adult human skeleton has ___________ bones.
All of the following are found in a cross-section of skin EXCEPT:
a. Sweat glands.
b. Arteries and veins.
The porous, inner part of a bone is called the: