sutures Flashcards
1
Q
what are sutures
A
- strong fibrous elastic tissues that hold bones together
- immovable in adults
- movable in infants and children
2
Q
functions of sutures
A
- sutures connect bones of skull together - only between skull bones
- spaces between bones that remain ooen
3
Q
what does metopic connect
A
frontal - frontal
4
Q
what does coronal suture connect
A
frontal - parietal
5
Q
what does squamous suture connect
A
temporal - parietal
6
Q
what does sagittal suture connect
A
parietal - parietal
7
Q
what does lambdoid suture connect
A
occipital - parietal
8
Q
frontal - frontal
A
metopic/ frontal
9
Q
frontal - parietal
A
coronal
10
Q
temporal - parietal
A
squamous
11
Q
parietal - parietal
A
sagittal
12
Q
lambdoid
A
occipital - parietal
13
Q
what do all sutures apart from the frontal connect to
A
parietal bone
14
Q
In what circumstances that one’s age has to be
determined in such a way?
A
- imaging the sutures can determine roughly the age of the individual
- anthological/ archeological studies
- forensic studies
15
Q
what are fontanels
A
- soft spots where bone formation is not complete
- regions of connective tissue between developing bones
16
Q
functions of fontanels
A
- enable skull to change in size and shape as it passes through birth canal
- allows for rapid brain growth as a young child develops
17
Q
two types of fontanelle
A
- anterior fontanelle
- posterior fontal
18
Q
anterior fontanelle
A
- largest of the two
- found at junction of metopic and coronal sutures
- closes at 13-24 months
19
Q
posterior fontal
A
- found at junction of sagittal and lambdoid sutures
- closes at 6-8 weeks
20
Q
what are skull x-rays used in
A
- skeletal survey
- shunts
- pagets
- FB (Pre-MR orbits XR)
