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Embryo-Fall 2017 > Embryo-2 > Flashcards

Embryo-2 Flashcards

1
Q

What mesoderm is head mesenchyme, and somites

A

Paraxial mesoderm

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2
Q

Vertebral column and ribs, meningies

A

Sclerotome

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3
Q

Striated Muscles

A

Myotome

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4
Q

Dermatome

A

Dermis of skin and subcutaneous

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5
Q

What does the splanchinc and somatic lateral plate mesoderm?

A

Lateral mesoderm

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6
Q

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

A

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

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7
Q

What is another name for the yolk sac?

A

Vitelline Duct, connection from gut tube to the gut tube

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8
Q

What does the endoderm make?

A

Gut tube

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9
Q

What does the foregut produce?

A

Trachea esophagus, stomach, duodenum, liver, and pancreas

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10
Q

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

A

Midgut

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11
Q

Hindgut is what?

A

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

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12
Q

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

A

mesoderm

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13
Q

The ectoderm is what?

A

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

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14
Q

Adenohypophysis is what?

A

Lens, inner ear

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15
Q

Neuroectoderm is what?

A

CNS, Retina, neurohypophysis, and neural crest cells

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16
Q

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

A

Ectopia cordis

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17
Q

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

A

Gastroschisis

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18
Q

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

A

Dorsal Sclerotome

19
Q

The meninges come from where?

A

Medial sclerotome

20
Q

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

A

Central Sclerotome

21
Q

Ventral sclerotome mannifests what?

A

Vertebral bodies and annulus fibrosis of intervertebral disks

22
Q

What makes the distal portion of the the ribs?

A

Lateral sclerotome

23
Q

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

A

Notochord Cells

24
Q

What antibodies can cross the placenta?

A

IgG, IgA

25
Q

Name 2 viruses that cross the placenta

A

Rubella and measles

26
Q

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

What is this disease?

A

Placenta Succenturiata

27
Q

Fetal kidney defects like bilateral kidney agenesis result in

A

Oligohydramnios

28
Q

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

A

polyhydraminos

29
Q

What makes up the myocardium?

A

Visceral (sphlanic) part of the lateral plate mesoderm

30
Q

The bulbus cordis will form what?

¨

A

Smooth part of right ventricle (conus arteriosus)

Smooth part of left ventricle (aortic vestibule)

Outflow tract of both Ventricles

31
Q

The truncus arteriosus will form the roots and proximal portion of the aorta and ____________

¨The primitive ventricle will form the _____________

A

pulmonary artery

Left Ventricle

32
Q

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

A

Dextrocardia

33
Q

The normal position of the heart and organs in the body is _____________

A

Situs Solitus

34
Q

What part of the heart does the primitive ventricle make?

A

Rough (trabeculated ) part of right ventricle

Rough (trabeculated ) part of left ventricle

35
Q

What does the primitive atrium make?

A

Trabeculated part of right atrium

Trabeculated part left atrium

36
Q

What does the Sinus Venous make?

A

Right horn - Smooth part of right atrium (sinus venareum)

Left horn - Coronary sinus, oblique vein of left atrium

37
Q

Put in the following heart tube names in the right location

A
38
Q

Put the following heart tube parts in the right order

A
39
Q

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

What disease is this?

A

Ebstein’s Anomaly

40
Q

What disease is due to an insufficient amount of AV endocardial cushion?

Usually associated with patent foramen ovale, VSD, underdeveloped RV and overdeveloped LV

A

Tricuspid Atresia

41
Q

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

A

Membranous Septum no present

VSD

42
Q

_____________produced by adjacent mesoderm induces growth and differentiation of the trachea and lungs

A

Retinoic Acid

43
Q

the _____________ forms between the heart and body stalk (stalk of yolk sac)

What forms the posterior porition of the diaprahgm?

A

Septum Transversum

Pleuroperitoneal Cavity: Somatic Mesoderm

Embryo-Fall 2017 (6 decks)

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