EXAM #8 (SKULL) GUIDED-STUDY Flashcards
How many bones in the skull?
22 bones total in the skull
What are the four bones of the calvaria bones of the skull?
frontal
occipital
right parietal
left parietal
What are the four bones of the floor bones of the skull?
ethmoid
sphenoid
right temporal
left temporal
What is a fontanel?
areas of incomplete ossification in infant skulls (i.e., “soft spots”)
What two groups of bones are in the skull? How many in each?
Cranial bones = 8
Facial bones = 14
What two groups of cranial bones are there?
calvaria + floor bones
What is a diploë?
spongy bone separating outer plates of compact tissue
What are sutures?
fibrous joints that connect the bones of the skull
Where are the following sutures?
Coronal = ?
Sagittal = ?
Squamosal = ?
Lambdoidal = ?
Where are the following sutures?
Coronal = between frontal and parietal bones
Sagittal = on top of head between two parietal bones
Squamosal = between temporal bone and parietal bones
Lambdoidal = between occipital and parietal bones
Where are the following located?
Bregma = ?
Lambda = ?
Where are the following located?
Bregma = junction of coronal and sagittal sutures
Lambda = junction of sagittal and lambdoidal sutures
When is the adult cranial size usually achieved?
age 12
Where are the following landmarks?
Orbitomeatal line (OML) ?
Infraorbitomeatal line (IOML) ?
Glabellomeatal line (GML) ?
Where are the following landmarks?
Orbitomeatal line (OML) From outer canthus to EAM
Infraorbitomeatal line (IOML) From infraorbital margin to EAM
Glabellomeatal line (GML) From glabella to EAM
Where are the following landmarks?
Interpupillary line (IPL) ?
Acanthiomeatal line (AML) ?
Mentomeatal line (MML) ?
Where are the following landmarks?
Interpupillary line (IPL) Perpendicular line between pupils of eyes
Acanthiomeatal line (AML) From acanthion to EAM
Mentomeatal line (MML) From mental point (center of chin) to EAM
