Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
Two major divisions of skeleton |
-Axial -Appendicular |
|
Axial skeleton |
Central axis of body -skull, vertebral column, ribs, and sternum |
|
Appendicular skeleton |
Includes upper and lower limb bones, pectoral girdle, and pelvic girdle |
|
Bone markings |
Articulations Extensions and projections Depressions Passages and cavities |
|
Skull bones |
Most complex part of skeleton, 22 bones total |
|
Cranial bones: skull |
8 cranial bones surrounds cranial cavity which encloses the brain |
|
Facial bones: skull |
14 facial bones support teeth, facial, and jaw muscles |
|
Sutures: skull |
Where bones meet, 4 sutures -sagittal -coronal -lambdoid -squamous |
|
8 cranial bones |
Frontal Parietal Temporal Sphenoid Occipital Ethmoid |
|
14 Facial bones |
Maxilla Palatine Nasal Lacrimal Zygomatic Inferior nasal conchae Comer Mandible |
|
Formen |
Small hole or opening |
|
Paranasal sinuses |
Airfilled mucus, frontal, sphenoid, ethmoid, maxillary |
|
Vertebral column |
33 vertebrae with discs of fibrocartilage between most of them |
|
Vertebral column function |
-supports skull and trunk and allow movement -protects spinal cord -absorbs stress of walk, run, lift -attachments for limbs, thoracic cage, muscles |
|
Five major divisions of vertebral column |
Cervical Thoracic Lumbar Sacrum Coccyx |
|
Cervical vertebrae |
C1 to C7, in the neck ~BREAKFAST AT (7) |
|
Thoracic vertebrae |
T1 to T12, in the chest ~LUNCH AT (12) |
|
Lumbar vertebrae |
L1 to L5, lower back ~DINNER AT (5) |
|
Sacrum |
Fusedx S1 to S5, base of spine (5) |
|
Coccyx |
Fused, Co1 to Co4, coccygeal (4) |
|
Primary curvatures |
Present at Birth, thoracic and pelvic, C shaped |
|
Secondary curvatures |
Develop later, cervical and lumbar, walking and crawling helps for S shape posture |
|
Body of vertebrae |
Centrum, mass of spongy bone, thin compact bone, weight bearing, rough surfaces |
|
Vertebral foramina of vertebrae |
Form vertebral canal for spinal cord |
|
Vertebral arch or vertebrae |
Forming vertebral foramen, consists of lamina and pedicle |
|
Lamina |
Either side of the spinous process |
|
Pedicle |
From the body |
|
Seven processes of vertebrae |
-1 spinous process, midline -2 lateral transverse processes -2 superior articular processes -2 inferior articular processes |
|
Intervertebral foramen |
Two vertebrae are joined, opening between Pedicle's, spinal cord passage |
|
Intervertebral disc |
Between most vertebrae, first one C2 and C3, last one L5 and Sacrum |
|
Intervertebral disc function and structure |
Composed of fibrocartilage, bind vertebrae together, support weight, absorb shock |