4. Intro to Sacrum DSA Flashcards
1
Q
How many vertebra comprise the sacrum?
A
5
2
Q
What separates adjacent sacral segments?
A
epiphyseal plates - fuse after puberty (work bottom to top)
3
Q
What is different between males and females after puberty regarding their SIJ ligaments?
A
males are well-developed and strong, while females are less developed, and allow the mobility of childhood
4
Q
What makes the Diarthrodial joint different from any other joint?
A
one side is hyaline cartilage, and one is fibrocartilage q
5
Q
What is form closure?
A
the compression produced by body weight, muscle action, and ligament force
*due to how the joints fit together, gravity and loading forces, and muscles/fascia/ligaments
6
Q
All of the movements of the sacrum on the ilium are _____ movements.
A
gliding
