Embrology

Question 1

What is teh embroyonic phase

Answer 1

weeks 0-3

Question 2

what is teh embroyonic phase

Answer 2

weeks 4-8

Question 3

what is teh fetal stadge

Answer 3

weeks 9-40

Question 4

name for femal reporduction cells

Answer 4

ovum

Question 5

process of producingsperma dn ovums

Answer 5

mitosis

Question 6

ititual sperm and ovum cell

Answer 6

spermatogonium and oogonium

Question 7

first cell produced afger fertilisation

Answer 7

zygote

Question 8

what does the zygote durin into

Answer 8

morula - soil ball of cells

Question 9

what are examples of disease that are inherited from the mother

Answer 9

leber’s hereditary opic neurophath, blindless

Question 10

what do morula turn into

Answer 10

blastocystic cavity

Question 11

what is teh outer lineing of the blastocytic cavity called

Answer 11

trophoblast

Question 12

what is teh inner cell mastq

Answer 12

part of blastocyte where the cell group together

Question 13

what moves the fertilised ovum algon the pholpina tube

Answer 13

cilia

Question 14

ectopic pregnacty

Answer 14

happens in uterine tube

Question 15

what cheical are proced by the folagues near the ovary

Answer 15

estrogen and progesion

Question 16

when does the placent start to develop

Answer 16

about 2 weeks

Question 17

what does teh tropoblast turn to next

Answer 17

chorion

Question 18

what is chorion

Answer 18

villi like process to form plecentsa

Question 19

what organ secreaetes human chronica gonadotropin

Answer 19

chorion

Question 20

endometrium

Answer 20

uterine wall

Question 21

what point does the blastocyst start to burry into tehuternie wal

Answer 21

about 7

Question 22

decidua basalis

Answer 22

a stucture that attaches to the endothelium to allow nutrience and blood flow to pass through

Question 22

what is superior and inferior, epiblast or hypoblast

Answer 22

epiblast superior, hydroblast inferior

Question 23

what does the epiblast form

Answer 23

amniotic cavity

Question 24

what does hte yolk sac form from

Answer 24

hydroblast

Question 25

bilaminar disc

Answer 25

cells of inner cell mas form a 2 layered flat disc called a bilaminar disc

Question 26

what is the function of the placenta

Answer 26

foetal nutrion, transport of waste and gases , imunity

Question 27

what is teh feoal part of the placenta surface like

Answer 27

smooth with foetal blood vessels and end of the umbilical cord

Question 28

what is the materianl part of the uterous like

Answer 28

made of deciu basalis, it is rough and has material blood vessels

Question 29

how do identical twins form

Answer 29

1 ovum and 1 sperm to 1 sycogts, to tow differ embyoyes

Question 30

how to fraternal (non idetnil twis form)

Answer 30

2 ova, 2 sperma nd 2 seperate zygotes

Question 31

differene beetwen dizygotic and monozygoic

Answer 31

monozygotic - idential, dizygotic, non identical

Question 32

gastrulation

Answer 32

formulation of germ layers in week 3

Question 33

neurulation

Answer 33

formation of the neural tube

Question 34

primative streak

Answer 34

formed in the midline of the epiblast by dipping cells to form mesoderm layer

Question 35

what is most superior middle and inferior ectoderm, endoderm, mesoderm

Answer 35

ectoderm, mesoderm,endoderm

Question 36

what is a notocord

Answer 36

a solid tube of cells that turns into a neurtal tube

Question 37

what cells turn the notcord to a neural tubw

Answer 37

ectodermao

Question 38

what are the 3 divisions of te mesoderm from proximal to medial to distal

Answer 38

paraxial mesoderm intermedial plate mesoderm lateral plate mesoderm

Question 39

what doese the paracial turn into

Answer 39

dermatone,mytome and sclerotome

Question 40

when does the heart start to beat

Answer 40

day 24

Question 41

when does latarel fold in tube occur

Answer 41

3rd week

Question 42

what does the gut form from

Answer 42

endoderm

Question 43

what does teh urogential system form from

Answer 43

intermida mesoderm

Question 44

what does the body cavity from from

Answer 44

lateral plate mesoderm

Question 45

what is teh lateral folding

Answer 45

forlindin so the endoderm endos up of the inside to from the gut the mesoderm forms the splanic and somatic systems the ectoderm frmos outsdie

Question 46

when does te head and tail fold occur

Answer 46

between weeks 4-6

Question 47

what are somites form

Answer 47

from dermates, myotomes and scleromtes

Question 48

thalidomide

Answer 48

tradegy of drug given to pregnant mothers to stop moring sickness caused limb issues