"The vertebral column and thoracic cage" LAB EXERCISE 12
pairs of ribs
12
thoracic vertebrae
12
pairs of floating ribs
2
unfused vertebrae
24
bones in the thoracic cage
25
spinal curves
4
lumbar vertebrae
5
pairs of false ribs
5
cervical vertebrae
7
pairs of true ribs
7
STRUCTURES bones in vertebral column
NUMBER 26
The first cervical vertebra is called C1 or ?
atlas
The second cervical vertebra is called C2 or ?
axis
The tailbone is more properly known as the
coccyx
The ? ribs do not articulate, even indirectly, with the sternum
floating
Costal cartilages are composed of ? cartilage tissue
hyaline
The ? is a horseshoe-shaped bone
hyoid
The only bone that does not articulate with another bone is the ?
hyoid
Spinal nerves leave the protection of the vertebral column by way of lateral holes, or gaps, between the vertebrae called ? foramina
intervertebral
? disks form a type of joint between the bodies of vertebrae
intervetebral
The inward curve of the lower back is called the ? curve
lumbar curve
The superior portion of the sternum is called the ?
manubrium
The medial ridge along the posterior surface of the sacrum is called the ?
medial sacral crest
Both radiographs and CT scans use ? to form images of anatomical structures
radiation
The ? is a vertical tunnel through the sacrum for the passage of nerves descending from the spinal cord
sacral canal
Both coccyx and ? are vertebral bones that are actually fused vertebrae
sacrum
The medial bumps along the midline of the back are caused by the ? of each vertebrae
spinous process
Kyphosis is a condition in which the vertebral column is distorted, giving a person a humpback. This condition involves an exaggerated ? curve
thoracic
The ? ribs connect directly to the sternum
true
All ribs articulate with ?
vertebrae