From Embryology

Lab 1 Questions

1.What is the protein that the sperm binds to on the surface? Zona Pellucida Protein 3 (ZP3)

2. Name the 3 stages of follicular development in the ovary.

1: Primary 2: Pre-antral 3: Antral

--Begum Sonmez 13:14, 6 August 2009 (EST)

LAB 2 Questions

  1.  What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy? hCG (Human Chorionic Gonadotropin)
  2. What does the corpus luteum secrete to prevent continuation of the menstrual cycle? Progesterone and Estrogen.
  3. What are the 2 main tissues to be derived from the germ cell layer continuous with the lining of the amniotic sac? Nervous System and epithelial layer of skin covering the embryo.

LAB 3 Questions

1. What period of human development (in weeks) do the 23 Carnegie stages cover? 8-9 weeks 2. What part of the somite will contribute to the vertebral column? Schlerotome 3. At what Carnegie stage does the human neural tube normally completely close? Stage 13

--Begum Sonmez 13:43, 20 August 2009 (EST)

To Dr. Mark Hill, I was present for the entire laboratory session on the 13th of August 2009, but had forgotten to sign off. --Begum Sonmez 15:07, 27 August 2009 (EST) Thank-you.

Lab 4 Questions

1. Into what structure do most blood vessels empty before they enter the embryonic heart? sinus venosus 2. What do the dorsal aortas become in the adult? Descending aorta 3. What are the layers of cells found in a tertiary villi? Trophectoderm cells, extra-embryonic mesoderm, and cells that line the blood capillaries

Lab 5 Questions

What was the question I said in the respiratory lecture would be part of this week's assessment?

What is Congenital Diaphragmatic Hernia and how does it affect the human lungs?

What is the answer to the above question?

Congenital means born with and a hernia is a problem where something goes through a hole it is not supposed to. The hole is in your baby's diaphragm. The diaphragm is a muscle that helps us to breathe and keeps the organs in the abdomen from going into the chest cavity In your baby's case, the hole stayed open. This allowed some of the intestines to go into the chest cavity. Since the intestines were in the chest cavity and not where they were supposed to be, the lungs could not grow in the normal space that they need (they had to share the space with the intestines). This means that the lungs are smaller than they should be.

Retrieved from "http://embryology.med.unsw.edu.au/embryology/index.php?title=Z3295026"

Lab 6 questions

Which is the more common clefting, cleft lip or cleft palate? cleft lip

What structures does pharyngeal pouch 1 form? tympanic membrane, tympanic cavity, mastoid antrum, auditory tube

Neural crest forms which cells within the skin? Melanocyte

To Dr. Mark Hill, I was present for the entire laboratory session on the 3rd of September 2009, but had forgotten to sign off. Thank-you again.

--Begum Sonmez 07:46, 4 September 2009 (EST)

Lab 7 questions

--Begum Sonmez 14:14, 17 September 2009 (EST)

Briefly; what is a myotube and how is it formed? It is the initial multinucleated cell formed by fusion of myoblasts during skeletal muscle development

What changes would I expect to see in the muscle fibre types in my legs if I:

a) Suffered a spinal cord injury: Mucle fiber converts from type 1 to type 2.

b) Took up marathon running: Muscle fiber converts from type 2 to type 1.


Lab 8 Questions

--Begum Sonmez 13:35, 24 September 2009 (EST)

Question 1. Identify and name 3 tissue types which contain adult (somatic) stem cells that were used/studied from the 5 articles discussed during the tutorial.

Muscle, bone marrow, neural stem cells

Question 2. Name 2 reprogramming strategies/methods used in generating human induced Pluripotent Stem Cells (iPSCs) from the 5 articles discussed during the tutorial.

  • Virus method. For instance, injecting the Gene using lentiviruses.
  • Non viral method. In this case, the plasmid is usually used.

Question 3. Is the following statement TRUE or FALSE? "Unlike the nuclear genome, the mitochondrial DNA in the embryo is derived almost exclusively from the egg; that is, it is of maternal origin."


--Antonio Lee 15:16, 31 October 2009 (EST) 3/3 Correct.