Embryology Final

horizontal plane folding is also known as ___________________.

lateral folding

3 multiple choice options

Which one of the following statements is false with regard to omphalocele?

is considered an acquired umbilical hernia.

3 multiple choice options

__________ and ________________ both participate in formation of the ribs.

sclerotome; somitocoel cells

3 multiple choice options

the midgut and secondary yolk sac communicate with the foregut through an opening called the _________________.

anterior intestinal portal

3 multiple choice options

a herniation of small bowel through persistent processus vaginalis is called a/an _______________.

indirect inguinal hernia

3 multiple choice options

The primordial testes (and ovaries) are derived from a region of the embryo called the _______________.

genital ridge

3 multiple choice options

in lateral folding, the ___________________ basically acts as a pivot point which allows for the tissue above to fold under.

splanchnopleure

3 multiple choice options

Which one of the following statements is false with regard to the processus vaginalis?

its remnants create the external and internal spermatic fascia

3 multiple choice options

Which one of the following statements is false with regard to the gubernaculum?

does not enter the inside of a processus vaginalis

3 multiple choice options

the midgut gives rise to all of the following structures, except for ______________.

descending colon

3 multiple choice options

at some point in somite maturation, the somite differentiates/segregates into all of the following layers, except for the ________________.

somatic lateral plate mesoderm

2 multiple choice options

Which one of the following statements is false with regard to small bowel obstruction?

vitamin B deficiency is a common cause.

3 multiple choice options

One prenatal sign of omphalocele is the presence of abnormally high levels of_____________ in mom's blood serum.

alpha fetoprotein

3 multiple choice options

the sclerotome gives rise to all the following structures, except for ___________.

nucleus pulposus

3 multiple choice options

the vitelline duct is formed because _____________________.

Cranial-caudal folding is blocked by the presence of the notochord.

3 multiple choice options

all of the following anteroinferior abdominal wall layers give rise to the spermatic cord, except for ________________.

transversus abdominis muscle

3 multiple choice options

mechanical small bowel obstruction can be caused by all of the following, except for ___________.

pleural effusion

3 multiple choice options

a persistent vitelline duct can manifest in all of these forms, except for _________________.

vitelline hernia

3 multiple choice options

_____________ helps give rise to the annulus fibrosus of the intervertebral disc.

splanchnopleure

3 multiple choice options

folding of the embryonic disc occurs because the _______________ grows way faster than the _________________.

Ectoderm; Endoderm

3 multiple choice options

Which one of the following statements is true with regard to a Meckel's diverticulum?

some can be filled with ectopic tissue, especially fundic glands.

3 multiple choice options

The myotome differentiates into (forms) all of the following muscles, except for ____________.

Most smooth muscle

3 multiple choice options

females with persistent processus vaginalis may clinically present with a large lump in the ___________________.

labia majora

3 multiple choice options

after lateral folding is complete, the ________________ will almost completely surround the embryo.

amniotic cavity

3 multiple choice options

lateral folding of the embryonic disc starts about week ______________.

week four

3 multiple choice options

a persistent vitelline duct may result in all of the following pathology's, except for ___________.

vitelline inversion

3 multiple choice options

the gut tube is created when the right and left _______________ laterally fold and fuse in the midline.

splanchnopleure

3 multiple choice options

although a small-diameter processus vaginalis probably won't give rise to an inguinal hernia, those affected could easily develop a __________________

congenital hydrocele

3 multiple choice options

acute abdomen can be extremely dangerous, because it has the potential to be associated with the deadly _______________.

peritonitis

3 multiple choice options

___________ is not considered one of the main regions of the gut tube.

ventralgut

3 multiple choice options

although not as common as adhesions, ______________ can be a cause of intestinal

lymphadenopathy

3 multiple choice options

_____________ is the mesenchyme-like structure that connects the inferior pole of the testes to the anterior inferior abdominal wall (a region that will become the scrotum).

gubernaculum

3 multiple choice options

Which one of the following statements is false with regard to a Meckel's diverticulum?

is considered a true intestinal polyp

3 multiple choice options

the number one congenital anomaly of the GI tract is a ___________________.

persistent vitelline duct

3 multiple choice options

a Meckel's diverticulum may act as a lead point in a condition called ________________.

intussusception

3 multiple choice options

in biological males, in addition to small bowel obstruction, _______________ can also occur in those affected with indirect inguinal hernia.

testicular ischemia

3 multiple choice options

the anterior body wall is formed when the right and left ________________ fuse together after lateral folding.

somatopleure

3 multiple choice options

________________ is not a member of the Pentalogy of Cantrell

spina bifida manifesta

3 multiple choice options

if you push into the left lower quadrant during examination (deep palpation) and hold, and then the patient reports excruciating pain at McBurney's point, a working diagnosis of ________________ is put forth.

appendicitis

3 multiple choice options

Bird man is interesting

True

1 multiple choice option