5/21

Question 1

Downs Syndrome

Answer 1

• Decreased AFP and nuchal Translucency

- 95% from meotic nondisjunction and 5% from unbalanced robertsonian translocation

Question 2

Edwards

Answer 2

• Rocker bottom feet, clenched hands and occiput Low ears
• Decreased everything
• 2nd most common

Question 3

Patau

Answer 3

• Polydactyly, holoprosencephaly, cleft lip and palate
• Trisomy 13
• Rocker bottom feet and nuchal translucenccy
• Decreased PaPPA and increased nuchal rigidity

Question 4

Williams

Answer 4

• Deletion of 7q
• Elastin gene leads to elvin facies and extreme friendliness with strangers
• Hypercalcemia and aortic stenosis

Question 5

Cri Du Chat

Answer 5

Deletion of 5p

• Mild retardation and high pitched cry
• Microcephaly

Question 6

Maxillary Sinus

Answer 6

Is large and is inferior to the orbit

-Only on present at birth

Question 7

Ethmoid Sinus

Answer 7

Air Cells lie just lateral to nose and medial to orbit

Question 8

Frontal Sinus

Answer 8

Lies superior to the orbit and obliquely lateral to the nose

Question 9

Sphenoid Sinus

Answer 9

Lies within the sphenoid bone and is just inferior to the sella tursica

Question 10

Superior Orbital Fissure

Answer 10

-V1, 4, 3, 6 enter through here and cavernous sinus

Question 11

Optic Canal

Answer 11

Contains only the optic nerve and opthalmic artery which is a branch directly off internal carotid

Question 12

Inferior orbital fissure

Answer 12

-Contains branches of the maxillary artery to supply the face and nose and also V2