Skeletal System Flashcards
What is the main function the skeletal system?
It is our body’s support structure. Gives our body its shape, allows for movement and makes blood cells & provides protection for our organs.
Name the 2 sections the skeletal system is divided into
Axial
Appendicular
How many bones do we have have all together in our body?
206 bones
How many bones do we have in our axial skeleton?
80 bones
How many bones do we have in our appendicular system?
126
How many bones consist off the sacral section in the spinal cord?
5
What are the 5 parts of the axial skeleton?
Skull
Ossicles (small bones of middle ear)
Hyoid bone of neck
Vertebra (bones of spine)
Thoracic cage (ribcage and sternum)
What does the cranium consist of?
Cranial roof
Cranial base
What does the cranial base consist of?
Frontal bones
Sphenoid bones
Ethmoid bones
Occipital bones
Pariental bones
Temporal bones
What are the auditory ossicles ?
Malleus, incus, stapes
What is special about hyoid bone?
Only floating bone in body - held in place by cartilage, ligaments and muscles
What is the vertebra?
Back bones of spine
How many vertebrae does the spinal column have? & how many regions do they split into?
Consists of 33 vertebrae split into 5 regions
How many bones consist of the cervical section in the spinal cord?
7
How many bones consist of the thoracic section in the spinal cord?
12