Skeletal Quiz 4 Flashcards
Vertebra
24 separate bones that form the spinal column; protect the spinal cord from injury, form attachments for muscles of the torso, and allow movement of the back
Cervical vertebra
7 vertebrae of the neck
Atlas and Axis Cervical vertebrae
1st and 2nd vertebrae allow for movement of the head (yes/no)
Thoracic vertebra
12 vertebrae of the middle back; that connect to the ribs
Lumbar vertebra
5 vertebrae that form the lower back; take the most stress from our upright stance
Sacral vertebra
5 fused vertebrae located between the hips
Coccyx
3 fused vertebrae that form the tailbone (aka coccygeal region)
Intervertebral
Pads of fibrocartilage between each vertebrae that absorb shock and allow for flexibility of the spine
Ribs
12 pairs (24 ribs) that form the bony part of the Thorax
Vertebrosternal Ribs
(true ribs) Ribs that attach to the sternum via costal cartilage
Vertebrochondral ribs
(false ribs) Ribs 8-10 that connect to the sternum indirectly through a fused section of costal cartilage
Vertebral ribs
(floating ribs) ribs 11-12 that do not attach to the sternum (only attached to the thoracicvertebral)
Sternum
Breastbone
The three sections of the sternum
manubrium (top)
body (middle)
xiphoid process (bottom)
Pelvic Girdle
(Coxal Bones or Os Coxa) 3 bones that fuse to form the hips