Bones Flashcards
What is endochondral ossification?
When hyaline cartilage grows and turns into bone
When does bone growth cease?
When the growth plate of hyaline cartilage ossifies
Where is cartilage located?
At joints where mobility is required
What are the 3 fossae of the cranial cavity?
Anterior cranial fossa
Middle cranial fossa
Posterior cranial fossa
What is the foraminae for?
Crainial nerves and brains blood vessels to pass into/out of the crainal cavity
How many cervical vertebrae are there?
7
How many thoracic vertebrae are there?
12
How many lumbar vertebrae are there?
5
How many coccygeal vertebrae are there?
4
Why do vertebraes become larger as spine goes from superior to inferior?
They begin to bear more weight
When doe vertebraes become smaller again?
Once weight has transferred to hip bones
What is the role of the body of the spine?
Bears weight
What is the role of the vertebral arch?
Houses the spinal cord
What is the pectoral girdle?
A set of bones that connects the arm to the rest of the skeleton
What is the role of the pectoral girdle?
Provides support and stabilization to allow the shoulder to move
