Embryo-2

Question 1

What mesoderm is head mesenchyme, and somites

Answer 1

Paraxial mesoderm

Question 2

Vertebral column and ribs, meningies

Answer 2

Sclerotome

Question 3

Striated Muscles

Answer 3

Myotome

Question 4

Dermatome

Answer 4

Dermis of skin and subcutaneous

Question 5

What does the splanchinc and somatic lateral plate mesoderm?

Answer 5

Lateral mesoderm

Question 6

When the lateral Splanchnic and lateral Somatic mesoderm fold together, what is made post lateral folding?

Answer 6

makes the coelom, where the heart cavity, lungs, and ect. are located

Question 7

What is another name for the yolk sac?

Answer 7

Vitelline Duct, connection from gut tube to the gut tube

Question 8

What does the endoderm make?

Answer 8

Gut tube

Question 9

What does the foregut produce?

Answer 9

Trachea esophagus, stomach, duodenum, liver, and pancreas

Question 10

The small intestine, ascending colon, proximal 2/3 of transverse colon is what part of endoderm?

Answer 10

Midgut

Question 11

Hindgut is what?

Answer 11

Distal 1/3 of transverse colon, descending colon, rectum, cloacal plate

Question 12

Cardiovascular system, genitourinary system, smooth and striated muscle, connective tissues, vessels, skeleton, Dermis comes from this layer as well

Answer 12

mesoderm

Question 13

The ectoderm is what?

Answer 13

epidermis of skin, glands-mammary, sweat, enamel, epithelium, cornea, conjuctiva, lacrimal glands

Question 14

Adenohypophysis is what?

Answer 14

Lens, inner ear

Question 15

Neuroectoderm is what?

Answer 15

CNS, Retina, neurohypophysis, and neural crest cells

Question 16

What is the failure of the thoracic body wall to close?

Answer 16

Ectopia cordis

Question 17

What is the failure of the abdominal body wall to close?

Answer 17

Gastroschisis

Question 18

Where does the dorsal arch, spinous processes of vertebrae develop from?

Answer 18

Dorsal Sclerotome

Question 19

The meninges come from where?

Answer 19

Medial sclerotome

Question 20

The pedicles, transverse process of vertebrae, proximal portions of ribs?

Answer 20

Central Sclerotome

Question 21

Ventral sclerotome mannifests what?

Answer 21

Vertebral bodies and annulus fibrosis of intervertebral disks

Question 22

What makes the distal portion of the the ribs?

Answer 22

Lateral sclerotome

Question 23

Where does the nucleus pulposus or the central part of the intervetebral disc manifest itself from?

Answer 23

Notochord Cells

Question 24

What antibodies can cross the placenta?

Answer 24

IgG, IgA

Question 25

Name 2 viruses that cross the placenta

Answer 25

Rubella and measles

Question 26

A small part of placenta is separated from rest of it, sometimes retained inside uterus and cause postpartum hemorrhage. What is this disease?

Answer 26

Placenta Succenturiata

Question 27

Fetal kidney defects like bilateral kidney agenesis result in

Answer 27

Oligohydramnios

Question 28

Swallowing defects (esophageal atresia) or absorption defects (duodenal atresia) result in

Answer 28

polyhydraminos

Question 29

What makes up the myocardium?

Answer 29

Visceral (sphlanic) part of the lateral plate mesoderm

Question 30

The bulbus cordis will form what? ## Footnote ¨

Answer 30

Smooth part of right ventricle (conus arteriosus) Smooth part of left ventricle (aortic vestibule) Outflow tract of both Ventricles

Question 31

The truncus arteriosus will form the roots and proximal portion of the aorta and \_\_\_\_\_\_\_\_\_\_\_\_ ¨The primitive ventricle will form the \_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 31

pulmonary artery Left Ventricle

Question 32

¨Heart lies on the right side of the thorax instead of the left

Answer 32

Dextrocardia

Question 33

The normal position of the heart and organs in the body is \_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 33

Situs Solitus

Question 34

What part of the heart does the primitive ventricle make?

Answer 34

Rough (trabeculated ) part of right ventricle Rough (trabeculated ) part of left ventricle

Question 35

What does the primitive atrium make?

Answer 35

Trabeculated part of right atrium Trabeculated part left atrium

Question 36

What does the Sinus Venous make?

Answer 36

Right horn - Smooth part of right atrium (sinus venareum) Left horn - Coronary sinus, oblique vein of left atrium

Question 37

Put in the following heart tube names in the right location

Answer 37

Question 38

Put the following heart tube parts in the right order

Answer 38

Question 39

Tricuspid valve is not attached to atrioventricular canal, it gets displaced towards the apex of the RV (atrialization of RV) What disease is this?

Answer 39

Ebstein's Anomaly

Question 40

What disease is due to an insufficient amount of AV endocardial cushion? Usually associated with patent foramen ovale, VSD, underdeveloped RV and overdeveloped LV

Answer 40

Tricuspid Atresia

Question 41

Persistent Truncus Arteriosus does not separate Aorta and Pulmonary Artery, what other defect usually occurs?

Answer 41

Membranous Septum no present VSD

Question 42

\_\_\_\_\_\_\_\_\_\_\_\_\_produced by adjacent mesoderm induces growth and differentiation of the trachea and lungs

Answer 42

Retinoic Acid

Question 43

the _____________ forms between the heart and body stalk (stalk of yolk sac) What forms the posterior porition of the diaprahgm?

Answer 43

Septum Transversum Pleuroperitoneal Cavity: Somatic Mesoderm