GA: Oral Cavity + Pharynges

Question 1

What is the purpose of the soft palate?

Answer 1

Forms posterior 1/3 of mouth, helps close of nasopharynx when swallowing

Question 2

Where do the palatine tonsils live?

Answer 2

Between the glossopalatine + pharyngopalatine arches in mouth

Question 3

What are the 3 salivary glands?

Answer 3

Parotid (largest)

Submandibular (produces most saliva)

Sublingual

Question 4

Teeth (gomphosis joint)

Answer 4

We have 32 teeth

(before permanent = 20 deciduous teeth)

Question 5

What are the 3 phases of swallowing?

Answer 5

Question 6

Answer 6

Question 7

What innervates tensor veli palatini?

What innervates levator veli palatini?

Answer 7

tensor = CN V3

levator = CN X

Question 8

What does vagus nerve split into?

Answer 8

Pharyngeal (top)

Superior Laryngeal (bottom)

Reccurent laryngeal (bottom to top)

Question 9

What forms long bones?

Answer 9

Endochondral ossification: bone formation occurs in preexisting cartilaginous models

Question 10

Brain surround by:

Face surrounded by:

Answer 10

Neurocranium

Viscerocranium

Question 11

The membranous part of the neurocranium =

Answer 11

calvaria (frontal + parietal bones)

sutures

Question 12

Where do the pharyngeal arches come from?

Answer 12

Cartilaginous viscerocranium

Question 13

What is craniosyntosis?

Answer 13

Premature fusion of cranial sutures

Question 14

What is scaphocephaly?

Answer 14

Premature closure of sagittal suture

Question 15

What is brachycephaly?

Answer 15

Premature closure of coronal suture

Question 16

What is plagiocephaly?

Answer 16

Premature closure of cornoal suture on one side

Question 17

What is trigonocephaly?

Answer 17

Premature closure of frontal suture

Question 18

How are the facial primordia separated from the pharynx?

Answer 18

By a bilaminar membrane: orophayngeal membrnae

Question 19

As the median nasal prominences merge what do they form that contributes to the philtrum of the upper lip?

Answer 19

Intermaxillary segment

Question 20

What pharyngeal arch forms the facial muscles?

Answer 20

PA2

(PA1 = muscles of mastication)

Question 21

What are the openings from the nasal cavity to the nasal pharynx called?

Answer 21

Primordial choanae

Question 22

What forms a cleft palate/cleft lip?

Answer 22

Primordia don’t fuse properly

Occurs in weeks 9-12

Question 23

Hypopharyngeal eminence?

Question 24

Teeth development from reciprocal inductions between neural crest induced mesencyme + epithelium is called?

Answer 24

Odontogenesis

There are 10 tooth buds

Question 25

What is the cap stage of tooth development?

Answer 25

Has enamel organ, dental papilla, + dental sac

Next = bell stage –> odontoblasts + dentin

Question 26

As a permanent tooth grows, what resorbs the deciduous root?

When do permanent teeth begin to erupt?

Answer 26

Osteoclasts

6 yrs old

Question 27

When do deciduous teeth appear?

Answer 27

10 weeks