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Semester 2 Adam KCU Embryology II Exam Review > Exam 3 Book Questions > Flashcards

Exam 3 Book Questions Flashcards

1
Q

If trunk neural crest cells are transplanted into the cranial region, they can form all of the following types of cells except:

Pigment cells 
Schwann cells 
Sensory neurons 
Cartilage 
Autonomic neurons
A

Cartilage

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2
Q

The otic placode arises through an inductive message given off by the:

Telencephalon 
Rhombencephalon 
Infundibulum 
Diencephalon 
Mesencephalon
A

Rhombencephalon

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3
Q

The second pharyngeal arch contributes to the:

Cochlea and earlobe 
Auditory tube and incus 
Stapes and earlobe 
Auditory tube and stapes 
Otic vesicle and stapes
A

Stapes and earlobe

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4
Q

The facial nerve (cranial nerve VII) supplies muscles derived from which pharyngeal arch?

First 
Second 
Third 
Fourth 
Sixth
A

Second

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5
Q

In cases of holoprosencephaly, defects of facial structures are typically secondary to defects of the:

Pharynx 
Oral cavity 
Forebrain 
Eyes 
Hindbrain
A

Forebrain

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6
Q

Meckel’s cartilage is a prominent structure in the early formation of the:

Upper jaw 
Hard palate 
Nasal septum 
Soft palate 
Lower jaw
A

Lower Jaw

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7
Q

An early induction in tooth development consists of the ectoderm of the dental epithelium acting on the underlying neural crest mesenchyme. Which of the following molecules is an important mediator of the inductive stimulus?

BMP-4 
Tenascin 
Hoxb-13 
Msx-1 
Syndecan
A

BMP-4

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8
Q

Which condition is most closely associated with a disturbance of neural crest?

Anal atresia
Meckel’s diverticulum 
Omphalocele 
Volvulus 
Aganglionic megacolon
A

Aganglionic megacolon

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9
Q

Meckel’s diverticulum is most commonly located in the:

Ileum
Ascending colon 
Jejunum 
Transverse colon 
Duodenum
A

Ileum

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10
Q

The primordium of which structure is located in the septum transversum?

Dorsal pancreas 
Lung 
Liver 
Thymus 
Spleen
A

Liver

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11
Q

The yolk stalk is most closely associated with which artery?

Celiac 
Umbilical 
Superior mesenteric 
Aorta 
Inferior mesenteric
A

Superior Mesenteric

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12
Q

The dorsal pancreatic bud is initially induced from the gut endoderm by the:

Liver 
Notochord 
Lung bud 
Yolk sac 
None of the above
A

Notochord

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13
Q

Splanchnic mesoderm acts as an inducer of all of the following tissues or organs except:

Teeth 
Trachea 
Liver 
Lungs 
Pancreas
A

Teeth

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14
Q

Which of the following does not connect directly with the primary nephric (mesonephric) duct?

Metanephros
Cloaca 
Nephrotomes 
Mesonephric tubules 
Ureteric bud
A

Metanephros

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15
Q

Which association is correct?

Potter’s facies and hydramnios
Urachal fistula and hydramnios
Horseshoe kidney and superior mesenteric artery
GDNF and metanephrogenic blastema
Bilateral renal agenesis and compensatory hypertrophy

A

GDNF and metanephrogenic blastema

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16
Q

Which defect is strongly associated with oligohydramnios?

Pelvic kidney
Renal agenesis
Horseshoe kidney
Crossed ectopia
Polycystic kidney
A

Renal agenesis

17
Q

Which anomaly is most closely associated with exstrophy of the bladder?

Epispadias 
Renal agenesis 
Anal atresia
Pelvic kidney 
Ectopic ureteral orifice
A

Epispadias

18
Q

The uterus arises from the:

Paramesonephric ducts 
Urogenital sinus 
Mesonephric tubules
Pronephric ducts 
Mesonephric ducts
A

Paramesonephric ducts

19
Q

The floor of the penile urethra in the male is homologous to what structure in the female?

Clitoris
Trigone of the bladder
Labia majora 
Labia minora
Perineum
A

Labia Minora

20
Q

Nucleated erythrocytes found circulating in the embryo are produced in the:

Yolk sac 
Para-aortic clusters 
Liver 
Bone marrow 
None of the above
A

Yolk Sac

21
Q

In a 7-month fetus, blood draining the left temporalis muscle enters the heart via the:

Left anterior cardinal vein 
Coronary sinus 
Left common cardinal vein 
Superior vena cava 
None of the above
A

Superior Vena Cava

22
Q

Adherons are inductive particles released by what structure in the endocardial cushion area?

Endocardium
Cardiac jelly
Myocardium 
Epicardium 
None of the above
A

Myocardium

23
Q

Neural crest contributes to the structure of which of the following?

Truncus arteriosus
Ascending aorta
Pulmonary trunk 
All of the above 
None of the above
A

All of the above

24
Q

For which of these cardiovascular malformations is a patent ductus arteriosus necessary for survival of the individual?

Atrial septal defect 
Ventricular septal defect 
Double aortic arch 
Right subclavian artery from arch of aorta 
None of the above
A

None of the above

25
Q

Five days after birth, an infant becomes cyanotic during a prolonged crying spell. The cyanosis is most likely caused by venous blood entering the systemic circulation through the:

Interatrial septum 
Ductus arteriosus 
Ductus venosus
Umbilical vein 
Interventricular septum
A

Interarterial Septum

26
Q

The internal carotid artery arises from aortic arch number:

1
2
3
4
5
A

3

27
Q

The ligamentum teres is the postnatal remains of the:

Ductus arteriosus
Ductus venosus 
Umbilical vein
Umbilical artery
Urachus
A

Umbilical vein

28
Q

Insufficient production of which of the following is a major cause of poor viability of infants born 24 to 26 weeks after conception?

Pulmonary surfactant 
α-Fetoprotein 
Meconium 
Lanugo
Urine
A

Pulmonary Surfactant

29
Q

Meconium is formed in the fetal:

Liver 
Ileum 
Lungs
Amniotic fluid
Kidneys
A

Ileum

30
Q

Which organ is much larger in the fetus than it is shortly after birth?

Kidneys 
Heart 
Liver 
Urinary bladder
Adrenal gland
A

Adrenal Gland

31
Q

Fetal movements usually can first be detected by ultrasound at how many weeks?

6 
8 
10 
12 
14
A

8

32
Q

What blood vessel is commonly used for exchange transfusions in newborns?

Umbilical artery
Jugular vein
Femoral artery 
Umbilical vein 
None of the above
A

Umbilical Vein

Semester 2 Adam KCU Embryology II Exam Review (3 decks)

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