Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

STEP > Embryology > Flashcards

Embryology Flashcards

(64 cards)

Start Studying
1
Q

Most common monozygotic twins

A

Diamnionic-monochorionic thins

Share one placenta, one chorion, but two amniotic fluids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Woman with lower abdominal pains, vaginal bleeding, fever, hCG ~10,000

A

Ectopic pregnancy

FYI This is a low hCG value

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cloacal membrane

A

Future anus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

VACTERL

A 
Vertebral defects
Anal atresia
Cardiovascular defects
Tracheo
Esophageal fistula
Renal defects
Limb defects

Constellation of symptoms assoc. With abnormal development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

VACTERL

A 
Vertebral defects (often sacrococcygeal teratoma)
Anal atresia
Cardiovascular defects
Tracheo
Esophageal fistula
Renal defects
Limb defects

Constellation of symptoms assoc. With abnormal development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Remnant of the ductus Venosus

A

The Ligamentum venosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Remnant of the umbilical vein

A

Ligamentum Teres hepatis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Remnant of the umbilical arteries

A

Medial umbilical ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

MCC of third trimester bleeding

A

Placenta Previa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Truncus Arteriosus

A

Forms the aorta and the pulmonary trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Bulbus cordis

A

Forms the smooth parts or the right and left ventricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Primitive ventricle

A

Forms the Trabeculated part of the right and left ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Primitive atrium

A

Forms the Trabeculated parts of the right and left atria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Sinus Venosus

A

Smooth part of the right atrium

AND

⭐️coronary sinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Sources of the membranous Interventricular septum (3)

A

Right bulbar ridge

Left bulbar ridge

AV cushions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

1st aortic arch

A

Maxillary artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

2nd aortic arch

A

Stapedial artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

3 aortic arch

A

Right and left CCAs

Right and left ICAs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

4th aortic arch

A

Right subclavian artery (right arch)

Aortic arch (left arch)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

6th aortic arch

A

Right and left pulmonary arteries

Ductus arteriosus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Vitelline arteries in an cult

A

Form the celiac, SMA, AND IMA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Vitelline veins in an adult

A

Forms the hepatic veins and sinsuoids, portal vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Dorsal Mesentary of the stomach in an adult

A

The greater Omentum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Contents of the Hepatoduodenal ligament

A

The portal triad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Baby with progressive jaundice, pale stool, dark urine
Biliary atresia; 100% fatal
26
"Double-bubble sign in newborn"
Possible annular pancreas Occurs when the ventral pancreatic bud fuses in two locations with the dorsal pancreatic bud ⭐️Have bilious vomit
27
Midgut rotation
Herniate at week 6, rotates 270 degrees around the SMA, and returns at week 11
28
Small intestine entirely on right side and large intestine on right
No rotation of the midgut; only completed 90 degrees
29
Mal rotation of the midgut
SI will be close to the pylorus; pt. at risk for Volvulus
30
Intestinal atresia
Failed recanalization of the gut tube possibly due to a uterine vascular event
31
Urorectal septum site in an adult
The perineal body
32
Upper and lower anal canal derivatives
Upper (above pectinate) cloaca (Hindgut) Lower-Proctodeum, an invagination of the ectoderm
33
Ventral mesentary in an adult
The lesser omentum
34
Metanephros gives rise to...
The functional kidney
35
Ureteric bud gives rise to...
The ureters, renal pelvis, calyces, and COLLECTING DUCTS -Ureteric bus begins as an outputching of the mesonephros
36
Level of the renal arteries
L2
37
Allantois remnant in adult
Median umbilical ligament Or The Urachus
38
Paramesonephric ducts
Form the Fallopian tubes, uterus, cervix, and superior 1/3 of the vagina -Is the concept behind adenosis where some of the vagina has columnar epithelia
39
Embryologic origin of the clit
Phallus
40
Embryologic origin of the Labia minora
Urogenital folds
41
Embryologic origin of the labia majora
Labioscrotal swellings
42
Hyatid cyst of Morgagni
Arises from remnant of the paramesonephroc duct
43
Didelphys
Lack of fusion of the paramesonephric ducts forms a double uterus ⭐️Bicornate ➡️ Partial fusion
44
Cells with long telomeres
Stem cells that are constantly replicating
45
Mesonephric ducts in males
Epididymis, vas deferens, seminal vesicle, Ejaculatory duct -Also called the Wolffian Ducts
46
Embryologic origin of the penis
The phallus
47
Embryologic origin of the ventral penis
Urogenital folds
48
Embryological origin of the scrotum
Labioscrotal swellings
49
Sturgeon-Weber Syndrome
``` Sporadic port-wine Stain Tram track calcium (brain looks outlined on CT) Unilateral (paresis, sensory deficits) Retardation Glaucoma (eye looks fucking HUGE unilaterally) GNAQ Gene Epilepsy ```
50
Tuberous sclerosis
``` Hamartomas in the CNS and skin Angiofibromas of the face, " butterfly" look Ash-leaf spots (hypopigmentation) Rhabdomyoma of the heart Tuberous sclerosis autosomal dOminant MR Angiomyolipomas of the kidney Seizure Shagreen patches (Orange-peel patch) Subungual fibroma ```
51
️Germinal Matrix Hemorrhage
At birth, the blood vessels that supply the proliferating neurons and glia above the caudate are thin walled and unable of Autoregulation ➡️ increased BP leads to rupture and hemorrhage ➡️ MR, seizure ⭐️ Tx: Antenatal corticosteroids (just like w/ NRDS)
52
Bones of the pharyngeal arches
Actually formed by neural crest cells
53
Arteries and muscles of pharyngeal arches
Formed by mesoderm
54
Filliform papillae
Only type of tongue papillae that does not have taste buds
55
Chorda tympani
Branch of the facial nerve that carries taste information -Is why a ruptured tympanic membrane produces a loss of taste
56
Inflammatory marker elevated in temporal arteritis
ESR and IL-6
57
Alar sensory plate
Becomes the DRG
58
Basal motor plate
Gives rise to motor neuroblasts of the ventral and lateral horns
59
Filum terminale
Anchors the spinal cord to the coccyx
60
Arnold-Chiari malformations
The caudal vermis and tonsils of the cerebellum herniate thru the foramen magnum Clinical: swallowing, strider, loss of gag reflex, vocal cord paralysis (due to loss of CNs IX-XII)
61
Alar sensory plate
Becomes the DRG
62
Basal motor plate
Gives rise to motor neuroblasts of the ventral and lateral horns
63
Filum terminale
Anchors the spinal cord to the coccyx
64
Arnold-Chiari malformations
The caudal vermis and tonsils of the cerebellum herniate thru the foramen magnum Clinical: swallowing, strider, loss of gag reflex, vocal cord paralysis (due to loss of CNs IX-XII)

STEP (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions