The growth center for new hair is termed the:

Which of the following best explains the role of calcium (Ca2+) at the synapse. 

Skin and nails derive (originate) from the same tissue type

The stratum lucidum contains a population of dividing cells that will become keratinocytes. 

The stratum corneum mostly consists of dead keratinocytes that serve as a barrier and prevent water loss. 

These cell types are responsible for breaking down bone matrix:

A first degree burn penetrates all the way down to the dermal layer of skin. 

Spongy bone is highly concentration is which portion of a long bone? (Hint: It’s why old people fracture easily when they have osteoporosis)

The skull is a part of the appendicular skeleton

In which of the following areas is hair usually not found? Check all that apply.