2010 BGD Practical 6 - Quiz

Here are a few simple questions that relate to your BGD practical, this page is not a part of today's Practical class. You should try in your own time after completing the Practical today.Take the quiz and see what you know, if you get some wrong, try working through through the 2010 BGD Practical - Implantation to 8 Weeks.

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1 Which of the following sequences of embryonic disc mesoderm is most correct:

	lateral to medial:extraembryonic - lateral plate - intermediate - paraxial
	lateral to medial: lateral plate - paraxial - intermediate - axial
	medial to lateral: notochord - somites - intermediate - lateral plate
	medial to lateral: paraxial - axial - intermediate - cardiac

2 During embryonic disc folding in week 3 only the ectoderm layer folds ventrally left, right and above and below the notochord.

	true
	false

3 Somites form regularly at the level of the body in the direction

	rostrocaudally
	caudorostrally

4 The intraembryonic coelom is a horse-shoe shaped cavity that develops in the lateral plate mesoderm from a series of smaller cavities fusing. Which of the following descriptions best describes the structure that then forms in this region.

	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.

5 Select the correct options below for the structures formed by sclerotome

	vertebra
	dermis
	limb bud cartilage
	intervertebral disc
	skeletal muscle

6 The extraembryonic coelom refers too

	amniotic cavity, yolk sac and chorionic cavity
	pericardial cavity, pleural cavity and peritoneal cavity
	blastocoel, somitocoel and lateral plate coelom
	maternal lacunae, uterine gland lumen, uterine body cavity

7 Which of the following statements is incorrect about the process of gastrulation

	gives rise to the trilaminar embryo
	involves cell migration from the epiblast layer
	extends from the primitive node to the buccopharyngeal membrane
	occurs at the region known as the primitive streak
	generates endoderm and then mesoderm layers

8 What are the two main early embryonic developmental roles of the notochord

	mechanical role in embryonic disc folding and signaling for tissue patterning
	formation of the nucleus pulposis and separating cloacal and buccopharyngeal membranes
	gastrulation and neuralation
	formation of the nucleus pulposis and intervertebral disc

9 Ectoderm refers only to the neural plate region of the trilaminar embryo

	true
	false

Quizzes

Medicine Practicals: Foundations Embryology - BGDA Fertilization to Implantation | Embryo | Fetal | Placenta - BGDB Gastrointestinal | Face and Ear | Sexual Differentiation

General Embryology: Ectoderm Quiz | Mesoderm Quiz | Early Heart Quiz | Placenta Quiz | Respiratory Quiz | Renal Quiz | Genital Quiz