Development 2Nd Test

Front 1

How do you get a lateral facial cleft?

Back 1

Mandibular and maxillary prominences fail to merge correctly on the same side

Front 2

how do you get a median cleft of the lower jaw?

Back 2

mandtibular promiences fail to fuse completely

Front 3

How do you get a bifid nose?

Back 3

failure of the medial nasal promiences to merge in the midline

Front 4

the lateral palatine processes fail to fuse w/ each other, the nasal septum and the median palatine process results in what?

Back 4

cleft of primary palate

Front 5

the lateral processes fail to fuse with each other and with the nasal septum results in what?

Back 5

Cleft of secondary palate

Front 6

Derivatives of arch 1 give you?

Back 6

1. trigeminal nerve
2. masstication muscles
3.malleus & incus
4.maxillar art & ext. carotid

Front 7

derivatives of arch 2 give you?

Back 7

1. facial nerve
2.facial expression
3. stapes

Front 8

derivatives of arch 3 give you?

Back 8

1. glossopharyngeal nerve
2.stylopharyngeus
3.common carotid art

Front 9

derivatives of arch 4 give you?

Back 9

1. vagus nerve
2. thyroid & artynoid
3. arch of aorta & subclavian

Front 10

derivatives of arch 6 give you?

Back 10

1. recurrent laryngeal
2.cricoid
3. pulmonary artery

Front 11

when the 3rd & 4th pharyngeal pouches fail to give rise to the thymus and parathyroid gland is called?

Back 11

Congenital thymic aplasia and absence of the parathyroid gland

Front 12

when the the thymus fails to descent into the ant and sup mediastinum from the 3rd pharyngeal pouch is called?

Back 12

Cervical thymus and accessory thymic tissye

Front 13

Result either becayse the glands fail to migrate or b/c they migrate too far

Back 13

Ectopic & varitions in the # of parathyroid glands

Front 14

These cysts leave bulges in the anterior midline of the neck. They can become infected and form sinus

Back 14

Thyroglossal duct cysts and sinuses

Front 15

results from either a failure of the gland to descend so that it remains with the tongue or from a partial descent placing the galnd near the hyoid bone

Back 15

extopic thyroid gland and accessory thyroid tissue

Front 16

How do you get a cleft or bifid tongue?

Back 16

results when the lateral tongue buds fail to fuse properly in the midline

Front 17

What gives rise to the endolymphatic duct and the semicircular ducts?

Back 17

Utriculus

Front 18

What gives rise to the maculus sacculi, cochlea, organ of corti?

Back 18

Saccule

Front 19

Middle ear is derived from what pouch?

Back 19

the first pharyngeal pouch

Front 20

What makes the tympanic mmbrn?

Back 20

The 1st groove and pouch ...Mesoderm moves inbetween these two epithelial layers to give rise to the fibrous element

Front 21

Auricle arise from?

Back 21

6 mesodermal swellings of the 1st and 2nd pharyngeal arch

Front 22

The optic cup gives rise to what?

Back 22

1. neural retina
2. iris
3. pigmented retina
4. ciliary process

Front 23

dvlpmntlly how can u get a congenital cataract?

Back 23

if schlera venous sinus fails to form

Front 24

What results from incomplete division of the respiratory and digestive portions of the larngotracheal groove?

Back 24

A tracheosophageal fistula

Front 25

What causes stenosis or atrasia of esophagus/trachea?

Back 25

1. unequal partitioning of the groove leaving the esophagus small (stenotic) or closed (artetic)
2. failure of esophagus to become recanalized after normal obliteration of its lumen by the endodermal cells

Front 26

what results from dilation of the terminal or larger bronchioles into large saccules

Back 26

congenital cysts of the resp. tract

Front 27

What is the coronary sinus made from?

Back 27

the lft sinai horn

Front 28

what is excessive reabsorption of septum1?

Back 28

Foramen secundum defects

Front 29

What 4 things are associated with tricuspid atresia?

Back 29

This defect is always associtaed with a patent foramen ovale, ventricular septal defect, underdeveloped rt ventricle and a hypertrophied lft ventricle

Front 30

What is the failure of the prox. trunco-bulbar ridges and endocardial cushions to fuse called?

Back 30

Mmbrns septal defects

Front 31

What is unequal partitioning of trnco-bulbar area and faulure of the mmbrns part of the interventricular septum to close?

Back 31

Tetratolgy of fallot

Front 32

What is failure of trunco-bulbar ridges to spiral as they form?

Back 32

Transposition of the great vessels

Front 33

What is it called when the rt 4th arch and rt dorsal aorta invulute abnormally cranial to the 7th rt intersegmental artery?

Back 33

Retroesophageal rt subclavian art

Front 34

What do the following give rise to:
1. Common cardinal vein
2. Subcardinal vein
3. Supracardinal vein
4. Sacrocardinal vein
5. Anterior cardinal vein
6. vitelline vein

Back 34

1. SVC
2.Renal veins
3.Azygos & hemiazygos
4.IVC & iliac
5.Brachiocephalic vein
6. portal vein

Front 35

whats it called when the anastomosis btwn the 2 anterior cardinal vein does not occur?

Back 35

Double superior vena cava

Front 36

what is congenital eventration of diaphragm?

Back 36

results when the muscle tissue from the body wall fails to migrate into the developing diaphargm

Front 37

What do the following openings in the diaphragm transmit?
1. vena cava foramen
2.esophageal hiatus
3. aortic hiatus

Back 37

1. inf. vena cava, phrenic
2. esophagus and vagal nerve trunk
3. aorta, thoracic duct