Embryology and Development — Flashcards

Flashcard 311: The lower portion of the vagina is derived from the _____ (from cloaca)

Answer: urogenital sinus

Flashcard 312: _____ years is the age of mixed dentition

Answer: 6-13 years

Flashcard 313: Philtrum of the upper lip, crest of the nose, and tip of the nose are formed by _____ process

Answer: medial nasal

Flashcard 314: What are the skeletal derivatives of the fourth pharyngeal arch?

Answer: Thyroid and epiglottic cartilages

Flashcard 315: Once the blastocyst cavity is fully lined with Heuser's membrane, it is called as the _____ cavity.

Answer: exocoelomic

Flashcard 316: _____ bones ossify partly from cartilage and partly from mesenchymal condensations

Answer: Membranocartilaginous

Flashcard 317: Forehead, bridge of the nose, the medial and lateral nasal prominences are formed by _____ prominence

Answer: frontonasal

Flashcard 318: The sclera (except supero-temporally) and ciliary muscles are formed from _____

Answer: Neural crest

Extra: The supero-temporal portion of the sclera is derived from paraxial mesoderm.

Flashcard 319: The liver grows in the _____ mesogastrium

Answer: ventral

Flashcard 320: Embryologically, Parotid is derived from the _____

Answer: ectoderm