Portage Learning: A & P 1, Module 4 Skeletal System
1. parietal:
2. temporal:
3. frontal:
4. occipital:
5. sphenoid:
6. ethmoid: small unpaired bone, located in the midline of the anterior cranium,
between the two orbits.
7. sinus: spaces inside bones
8. purpose of sinuses: reduces weight of skull//provides resonance to voice
9. fontanelle: spaces b/t posterior, anterior, mastoid, & sphenoid (on infants)
10. mastoid:
11. maxilla:
, Portage Learning: A & P 1, Module 4 Skeletal System
12. mandible: only movable portion of skull
13. nasal:
14. lacrimal:
15. foramen magnum: allows spinal cord to
pass through to brain
16. external acoustic meatus: allows
hearing
17. cervical vertebrae: C1-C7, small body, large vertebral foramen, straight &
narrow spinous process, transverse process & transverse foramen (passage
of vertebral arteries)
, Portage Learning: A & P 1, Module 4 Skeletal System
18. atlas: C1, large vertebral foramen allows for passage of brain
stem and spinal cord, no body
19. axis: C2, odontion process sticking out, allows for rotation of
the skull
20. thoracic vertebrae: T1-T12; second set of 12 vertebrae; costal
facets that articulate with the 12 pairs of ribs ; superior and
inferior facets ; long and pointed spinous process
21. lumbar vertebrae: L1-L5, large body to support weight of
vertebral column,
1. parietal:
2. temporal:
3. frontal:
4. occipital:
5. sphenoid:
6. ethmoid: small unpaired bone, located in the midline of the anterior cranium,
between the two orbits.
7. sinus: spaces inside bones
8. purpose of sinuses: reduces weight of skull//provides resonance to voice
9. fontanelle: spaces b/t posterior, anterior, mastoid, & sphenoid (on infants)
10. mastoid:
11. maxilla:
, Portage Learning: A & P 1, Module 4 Skeletal System
12. mandible: only movable portion of skull
13. nasal:
14. lacrimal:
15. foramen magnum: allows spinal cord to
pass through to brain
16. external acoustic meatus: allows
hearing
17. cervical vertebrae: C1-C7, small body, large vertebral foramen, straight &
narrow spinous process, transverse process & transverse foramen (passage
of vertebral arteries)
, Portage Learning: A & P 1, Module 4 Skeletal System
18. atlas: C1, large vertebral foramen allows for passage of brain
stem and spinal cord, no body
19. axis: C2, odontion process sticking out, allows for rotation of
the skull
20. thoracic vertebrae: T1-T12; second set of 12 vertebrae; costal
facets that articulate with the 12 pairs of ribs ; superior and
inferior facets ; long and pointed spinous process
21. lumbar vertebrae: L1-L5, large body to support weight of
vertebral column,
