Skeletal System Quiz

How many bones are there in the human skeleton?

_______________ allows calcium levels in bones to increase.

The _____________ are in charge of maintaining blood pressure.

Platelets cling to injured blood vessels and heal them by forming __________.

Which of the following can cause disturbances in the skeletal system? (choose all that apply)

Is the skeletal system an open or closed system?

Fill in the blank: There are ____________ main subsystems in the skeletal systems.