Embryology

Question 1

Name TORCH defects

Answer 1

Toxoplasmosis
Herepes
Rubella
zika
Cyclomegavirus

Question 2

Whats Sperm capacitation

Answer 2

Vagina releases chemicals to make sperm fertile ready

Question 3

What is the cortical reaction

Answer 3

Zona pellucida switched off prevent polyspermy

Question 4

What is the Acrosome reaction

Answer 4

Acrosome degenerates> releases enzymes

Question 5

How many cells in a morulla

Answer 5

16-32

Question 6

What day does hatching and implantation occur?

Answer 6

5-6

Question 7

What do trophoblasts differentiate into?>

Answer 7

Synctiotrophoblasts

Cytotrophoblasts

Question 8

What do embryoblasts differentiate into?

Answer 8

Hypoblasts

Epiblasts

Question 9

What do embryoblasts differentiate into?

Answer 9

Hypoblasts

Epiblasts

Question 10

What cavity is within the epiblasts

Answer 10

Amniotic

Question 11

What does the extraembyronic mesoderm form

Answer 11

Chorionic cavity

Question 12

What do Syncytiotrophoblasts empty all their nutrients into?

Answer 12

Trophoblastic lacuna

Question 13

What does HcG do?

Answer 13

Maintain endothelium

Question 14

What is pregnancy re absorption called

Answer 14

Rectouterine pouch

Question 15

What is a calcified embryo called?

Answer 15

Lithopaedion

Question 16

What is the Cranial mem formed in Gastrulation?

Answer 16

Orophartlngeal ,e,

Question 17

What is the mem formed at the cordia end of gastrulation?

Answer 17

Cloacal mem

Question 18

What is caused by and abnormality in the primitive streak? Name its two forms

Answer 18

Situs Inversus
Partial Situs Inversus
Complete Sitis inversus

Question 19

Name a partial situs inversus condition

Answer 19

Detroxcardia

Question 20

Name a complete situs inversus condition

Answer 20

Kartagener

Question 21

Ectoderm derivatives

Answer 21

Retina, Cornea, Lens, Sclera
Peripheral nervous system
CNS
Epidermis of skin

Question 22

Endoderm derivatives

Answer 22

Tonsils
Thyroid gland
Parathyroid glands
Trachea
Thymus
Liver (Glandular cells)
Lungs
Pancreas (glandular cells)
GI tract (epithelial lining )
Bladder
Urethra
R/S epithelial linning

Question 23

Mesoderm derivatives

Answer 23

Musculoskeletal Structures
Genital Urinary system
Muscle 
Major blood vessels
Heart
Adrenal cortex
Kidneys
Uterus
Gonads
Cartilage, connective tissue
Bones

Question 24

What condition is sometimes known as mermaids tail?

Answer 24

Sirenomelia

Question 25

What condition occurs when primitive streak persists?

Answer 25

Sacrococcygeal Teratoma

Question 26

Derivatives of paraxial mesoderm

Answer 26

Skeleton Dermis Skeletal Muscle

Question 27

Derivatives of Intemediate mesoderm

Answer 27

Internal reproductive tract Gonads Kidney

Question 28

Derivatives of Lateral mesoderm

Answer 28

Body cavity linning

Question 29

What are Somites

Answer 29

Blocks that paramial mesoderm splits into

Question 30

How many pairs do we have? How many pairs are made a day? What do we use somites for?

Answer 30

42-43 3-4 Predicting a pregnancy

Question 31

What are the 3 somosites

Answer 31

Dermatome Myotome Sclerotome

Question 32

What does dermatome form?

Answer 32

Demris

Question 33

What does Myotome form?

Answer 33

Skeletal muscle

Question 34

What does Sclerotome form?

Answer 34

Bone and ccartilage

Question 35

What is it called when tissue surrounding spinal chord protrudes from back?

Answer 35

Myelomeningocele

Question 36

What is it called when neural tissue protrudes from back?

Answer 36

Meningocele

Question 37

Name a disease where anterior neurpore fails to fuse

Answer 37

Anencephaly

Question 38

Name 3 conditions when posterior neuropore fails to fuse

Answer 38

Paralysis Spina bifida Rachischsis

Question 39

Two Vetral wall defects

Answer 39

Ectopia Cordis | Gastroshisis

Question 40

What is the notochordial process

Answer 40

Hollow tube formed by primitive streak

Question 41

What is folic acid important in by what % does it reduce birth defects?

Answer 41

Neural tube development | Reduce 50-70%

Question 42

Waht do neural crest cells help form?

Answer 42

``` Septums Teeth Skull Bones Glands Gut nervous system ```

Question 43

What is switched off in • Neurofibromatosis? what does it cause?

Answer 43

neurofibromin> tumour suppressor> Begin tumours

Question 44

Whats the vitteline duct

Answer 44

connection between yolk sac and mid gut

Question 45

Whats the Allantois

Answer 45

Connection to foetal bladder