Prelab sauerland skull, superficial face, and scalp Flashcards Preview

Block 5 week 1 Dani > Prelab sauerland skull, superficial face, and scalp > Flashcards

Flashcards in Prelab sauerland skull, superficial face, and scalp Deck (33):
1

What 2 parts can the skull be divided into?

the cranium and the skeleton of the face or facial bones

2

how many bones are part of the skeleton of the face or facial bones?

14 bones

3

How many bones are there in the cranium?

8 bones

4

What does the cranium do?

lodges and protects the brain

5

In (blank) fractures, bones of the cranium and bones of the face undergo traumatic separation.

Le Fort fractuers

6

What are 2 complex and unpaired bones of the neurocranium?

sphenoid and ethmoid

7

So what are the 8 bones of the neurocranium?

frontal, 2 parietal, occipital, 2 temporal, sphenoid, ethmoid

8

What does the sphenoid bone look like?

a butterfly

9

What are all the facial bones?

2 nasal bones
2 maxillary bones
2 palantine bones
2 inferior nasal concha
vomer
2 lacrimal bone
2 zygomatic bone
mandible
= 14 bones

10

What are the total number of bones in the skull (excluding the auditory ossicles)?

22

11

The maxillary bone (maxilla), zygomatic bone (malar bone), frontal bone, sphenoid bone, ethmoid bone, lacrimal bone all make up what?

the bones of the orbit

12

What is a le fort I and II fracture?

partial fracture of normally fused bones of the skull

13

What is a le fort III fracture?

complete dysjunction of normally fused bones of the skull

14

What is this:
wide variety of horizontal fractures of the maxilla, passing superior to the maxillary alveolar process (i.e superior to the roots of the upper teeth) crossing the bony nasal septum sometimes the pterygoid plates of the sphenoid bone

Le Fort I fracture

15

What is this:
Passes from the posterolateral parts of the maxillary sinuses and then superomedially through infraorbital structures, the lacrimal bones, the ethmoid bone, and up to the bridge of the nose. As a result, the entire
pyramidal-shaped central part of the face, including the hard palate and the maxillary alveolar processes, is separated from the rest of the cranium.

Le Fort II fracture

16

What is this:
This is a severe horizontal fracture that passes through the superior parts of orbit and the ethmoid and nasal bones. It extends laterally through the greater wings of the sphenoid bone and the frontozygomatic sutures. Often, the zygomatic bones and the zygomatic arches are also fractured.
This is a complete cranio-facial
dysjunction.

Le Fort III fracture

17

craniogacial dysjunction in le fort III fracture distorts (blank)

facial symmetry

18

The skull of a newborn is extremely thin and (blank)

pliable

19

What are the three thin and pliable bones of the skull of the newborn?

frontal, parietal, occipital

20

What are the three sutures of the newborn skull?

sagittal, coronal, lambdoid

21

What are the 2 fontanels of the newborn skull?

anterior and posterior

22

How can a babies skull fit through the birth canal?

the head becomes cone shaped cuz the halves of the frontal become flat, the occipital bone is drawn out and one parietal bone slightly overrides the other

23

When does the baby's calvaria (skull cap) return to normal?

a few days after birth

24

At birth, the bones of the calvaria are smooth and (Blank). No diploe (spongy bone) is present.

unilaminar

25

The resilience of the cranial bones of infants allows them resist forces that would produce fractures in adults. T or F

T

26

What is the galea aponeurotica?

epicranial aponeurosis (tendinous sheet over calvaria)

27

What are these:
caput succedaneum, subgaleal hemorrhage, cephalohematoma

extracranial hemmorrhage or edema in newborn

28

What is a pial hemorrhage?

intracranial hemmorrhage

29

Should we worry about a depressed (ping pong fractures) skull fracture in a newborn?

no

30

What are the mumps?

epidemic parotitis

31

What happens if you have obstruction or ascending infection going into the parotid gland (happens at the end of life)

parotitis

32

What is this:
Composed of glandular and squamous epithelium,
connective tissue and mucoid
deposits; mostly benign; slow growing. Recurrences after removal.

Malignancy is highest in the
parotid gland.

mixed tumor of parotid gland

33

What is this:
Adenocarcinoma; hard and fast growing; intense pain due to pressure on sensory nerves;
Infiltration and destruction of neighboring structures.

malignant tumors of parotid gland