lab 2- axial skeleton

what are the two parts of the human skeleton

axial and appendicular

what makes up the axial skeleton

head, spinal cord, rib cage

what makes up the appendicular skeleton

appendages, pelvis, etc.

what are the main functions of the skeleton

• body support

• movement

• organ protection

• mineral storage

• blood cell production

what are projections on bones

processes that grow from bone

what are processes used for

muscle attachment and joint formation

what are depressions

indentations or openings in the bone

what are indentations used for

conduits (channels) for nerves and blood vessels

what are the 6 cranial bones

• frontal

• parietal (2)

• temporal (2)

• occipital

• sphenoid

• ethmoid

what is the first cranial nerve

olfactory nerve

what is the second cranial nerve

optic nerve

what is the third cranial nerve

oculomotor nerve

what is the fourth cranial nerve

trochlear nerve

what is the fifth cranial nerve

trigeminal nerve

what is the sixth cranial nerve

abducens nerve

what is the seventh cranial nerve

fascial nerve

what is the eighth cranial nerve

vestibulocochlear nerve

what is the ninth cranial nerve

glossopharyngeal nerve

what is the tenth cranial nerve

vagus nerve

what is the eleventh cranial nerve

spinal accessory nerve

what is the twelfth cranial nerve

hypoglossal nerve

what three parts make up the sternum bone

manubrium, sternal body, xiphoid process

how many pairs of ribs do we have

12

which ribs are considered true ribs

r1-r7

which ribs are considered false ribs

r8-r12

which ribs are considered floating ribs

r11-r12

how many vertebrae do we have

24 unfused vertebrae

how many fused vertebrae make up the sacrum

5

how many fused vertebrae make up the coccyx

4

how many ribs do we have total

24