EX1 Flashcards
amniotic cavity develops between
embryonic disc and trphoblast
respiratory diaphragm develops from all the following sources, except for tissue that originates w/
septum transversum, pleuroperitoneal membranem, dorsal mesentary of the esophagus, EXCEPT buccopharyngeal membrane
with respect to the formation of the diaphragm
at about week 4 post fertilization the septum transversum lies opposite the 3rd, 4th, and 5th cervical somites
primary chorionic vili are recognizable by the end of —- week?
2nd week
developing face
the nasolacrimal duct develops along a groove between the maxillary and lateral nasal processes
all of following structure turn son the ventral surface of the embryo during folding except one
oropharyngeal membrane, heart, pericardial cavity, septum transversum, EXCEPT notochord
1st arch is known as
Meckel cartilage
2nd arch is known as
Reichert cartilage
1st arch cartilage derivatives
-malleus and incus of auditory ossicles
2nd arch cartilage derivatives
- stapes of auditory ossicles
- styloid process
- lesser cornu of hyoid bone
3rd arch cartilage derivatives
- greater cornu of hyoid bone
- body of hyoid bone
4th & 6th arch cartilage derivatives
thyroid cartilage and cricoid cartilage
1st arch nerve derivatives
- V2 max. division of trigeminal nerve
- V3 man. division of trigeminal nerve (nasal cavity, palate?)
2nd arch nerve derivatives
Facial nerve(tongue, sublingual glands)
3rd arch nerve derivative
glossopharyngeal nerve (esophagus, larynx)
