Chapter 6; bone markings: depressions and opening Flashcards
1
Q
What is the function of depressions and openings?
A
they usually allow for blood vessels and nerves to go through
2
Q
Foramen/foramina
A
Round or oval opening; it is the most common marking in this group
examples: infraorbital foramen, mental foramen of the skull
3
Q
Groove/sulcus
A
an elongated depression
example: inner surface of mandible
4
Q
Fissure
A
slit like or irregular opening
examples: inferior and superior orbital fissures of skull
5
Q
Notch
A
indentation at bone edge;
ex. mandibular notch
6
Q
Fossa
A
basin or sink like depression
inner base of skull
7
Q
Meatus
A
similar to foramen. it is a long passageway through bone
examples: internal acoustic meatus of the skull
8
Q
Sinus
A
cavity within the bone
example paranasal sinus of frontal lobe
