-
Layer secreting hCG
Syncytiotrophoblast
-
maternal portion of placenta
Decidua basalis
-
Vitelline fisulta
- Meconium discharge from umbilicus
- Meckel's diverticulum
-
Truncus arteriosus structures
Ascending aorta and pulmonary trunk
-
Bulbus cordis structures
Right ventricle and smooth parts (outflow) of left and right ventricle
-
Primative ventricle
Portion of left ventricle
-
Primitive atria
Trabeculated left and right atrium
-
Left horn of sinus venosus
Coronary sinus
-
Right horn of sinus venosus
Smooth part of right atrium
-
What gives rise to the SVC
Right common cardinal vein and right anterior cardinal vein
-
What chemical occurence causes ductus arteriosus closure
- Increased oxygen leads to decrease in prostaglandins
- That's why indomethicin closes PDA and prostaglandins keep it open
-
1st aortic arch
maxillary artery
-
2nd aortic arch
Stapedial artery and hyoid artery
-
3rd aortic arch
Common carotid artery and proximal IC
-
4th aortic arch
- L: aortic arch
- R: proximal part of right subclavian artery
-
6th aortic arch
pulmonary arteries and ductus arteriosis
-
1st branchial arch: cartilage, muscle, nerve
- Mandible, Malleus, incus, spheno-Mandibular ligament
- Mastication, Mylohyoid, tensors, anterior belly of digastric, ant tongue
- CN V2 and V3
-
2nd branchial arch: cartilage, muscle, nerve
- Stapes, Styloid process, Stylohyoid ligament, Reichert's cartilage
- Facial muscles, Stapedius, Stylohyoid, post belly of digastric
- CN VII
-
3rd branchial arch: cartilage, muscle, nerve
- Greater horn of hyoid
- Stylopharyngeus
- CN IX (glossopharyngeal)
-
Branchial arch 3 abnormality
- congenital pharyngo-cutaneous fistula
- cleft and pouch connected, cleft in lateral neck
-
Branchial arch 4-6 cartilage
Thyroid, cricoid, arytenoids, corniculate, cuneiform
-
Branchial arch 4: muscles and nerve
- pharyngeal constrictors, cricothyroid, levator veli palitine
- CN X (swallowing)
-
Branchial arch 6: muscle and nerve
- All intrinsic larynx mm except cricothyroid
- CN X (recurrent laryngeal for speaking)
-
External auditory meatus comes from
1st branchial cleft
-
1st branchial pouch
middle ear cavity, eustachian tube, mastoid air cells
-
2nd branchial pouch
Palatine tonsil lining
-
3rd branchial pouch
thymus, inferior parathyroids
-
4th branchial pouch
superior parathyroids
-
Ureteric bud of metanephros gives rise to
everything from the collecting duct to the ureter
-
Metanephric mesenchyme gives rise to
everything from the glom to the DCT
-
Potter's syndrome
- Bilateral renal agenesis (ureteric bud malformation) causing oligohydramnios
- limb deformities, facial deformities, pulm hypoplasia
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