Talk:BGD Practical - Placenta Quiz: Difference between revisions

Latest revision as of 12:18, 1 June 2016

@@ Line 13: / Line 13: @@
 {During week 2 the blastocyst implants and the outer cell layer in that week becomes:
 |type="()"}
-- decidual cells and hypoblast cell layer
+- &nbsp;&nbsp;decidual cells and hypoblast cell layer
-+ cytotrophobasts and syncitiotrophoblasts
++ &nbsp;&nbsp;cytotrophobasts and syncitiotrophoblasts
-- chorion and amniotic membranes
+- &nbsp;&nbsp;chorion and amniotic membranes
-- the embryoblast and inner cell mass
+- &nbsp;&nbsp;the embryoblast and inner cell mass
 ||The outer layer of the blastocyst contributes the fetal placental layers of cytotrophobasts and syncitiotrophoblasts. Decidual cells are formed from the maternal uterine stroma and hypoblast cells are a transient layer lost by week 3 in development. Chorionic and amniotic membranes form later and have extra embryonic mesoderm contributions. The embryoblast and inner cell mass are the same thing and refer to the other population of cells in the blastocyst.
@@ Line 22: / Line 22: @@
 {The human placenta is derived from only fetal cells.
 |type="()"}
-- true
+- &nbsp;&nbsp;true
-+ false
++ &nbsp;&nbsp;false
 || The human placenta is a maternal and fetal organ, with components contributed from both the mother and the conceptus.

Point added for a correct answer:			Syntax error
Points for an incorrect answer:
Ignore the questions' coefficients:

	decidual cells and hypoblast cell layer
	cytotrophobasts and syncitiotrophoblasts
	chorion and amniotic membranes
	the embryoblast and inner cell mass

	somatic mesoderm close to ectoderm, the intraembryonic coelom and the splanchnic mesoderm closest to the endoderm.
	somitic mesoderm close to ectoderm, the intraembryonic coelom and the splanchnic mesoderm closest to the endoderm.
	somatic mesoderm close to endoderm, the intraembryonic coelom and the splanchnic mesoderm closest to the ectoderm.
	somitic mesoderm close to endoderm, the intraembryonic coelom and the splanchnic mesoderm closest to the ectoderm.
	intermediate mesoderm medially close to somites and laterally close to the intraembryonic coelom.
	none of the above.

	pericardial, pleural and peritoneal cavity.
	single pericardial cavity and two pleural and two peritoneal cavities.
	neural tube lumen, gastrointestinal tract lumen and neural crest.
	the paired dorsal aortas running the embryo.

	placodes form as patches of mesoderm only in the head region
	placodes are part of the neural crest that will contribute to sensory structures
	placodes contribute the upper and lower jaw structures of the head
	placodes are associated with sensory development, except for hearing.
	placodes are paired ectodermal regions.

	intramembranous ossification
	endochondral ossification
	neither intramembranous or endochondral ossification
	intramembranous and not endochondral ossification
	both intramembranous and endochondral ossification
	chondroblast cell replacement of osteoblast cells

	rostrocaudally
	caudorostrally

	upper limbs
	lower limbs