Talk:ANAT2341 Lab 5 - Online Assessment: Difference between revisions
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Now have a look at the range and type of questions that your peers set for the Quiz assessment. | Now have a look at the range and type of questions that your peers set for the Quiz assessment. | ||
{| class="wikitable mw-collapsible mw-collapsed" | |||
! Student Quiz Questions | |||
|- | |||
| | |||
<quiz display=simple> | <quiz display=simple> | ||
{Which of the following structures does the ectoderm contribute to? | |||
|type="()"} | |||
- epithelium, mesentry, connective tissue | |||
+ enteric nervous system | |||
- epithelium and smooth muscle | |||
- enteric nervous system, connective tissue, smooth muscle | |||
|| Option two is correct as the ectoderm only contributes to the enteric nervous system. Epithelium is contributed by the endoderm, whereas the mesentry, connective tissues, smooth muscle, blood vessels are contributed by the mesoderm | |||
{What lies rostral in relation to the notochord? | |||
|type="()"} | |||
- mesoderm | |||
- the neural tube | |||
+ the buccopharyngeal membrane | |||
- the mesoderm then endoderm | |||
|| The buccopharyngeal membrane lies rostral in relation to the notochord. The mesoderm lies laterally to the notochord, the neural tube dorsally and the mesoderm and endoderm ventrally. | |||
{During Week 8- 10 (GA 10- 12 weeks): | |||
|type="()"} | |||
+ neural crest migrates into the wall forms enteric nervous system | |||
- endoderm in the GIT wall proliferates | |||
- a second rotation (of 90 degrees) occurs on the longitudinal axis establishing the adult orientation of the stomach. | |||
- mesoderm within the dorsal mesogastrium form a long strip of cells adjacent to the forming stomach above the developing pancreas | |||
|| Option A is correct and is the only one that occurs during weeks 8-10. Option B occurs at the beginning of Week 5. Option C occurs during Week 4. Option D also occurs in Week 5 and is incorrect | |||
{Narrowing of a lumen such as the duodenum or the pylorus is also called: | |||
|type="()"} | |||
- duplication | |||
- atresia. | |||
+ stenosis | |||
- gastroschisis | |||
|| Stenosis is the correct answer. Duplication is the incomplete recanalization resulting in parallel lumens, this is really a specialized form of stenosis. Atresia is the interuption of the lumen and gastroschisis is a congenital abdominal wall defect which results in herniation of fetal abdominal viscera into the amniotic cavity. | |||
{The mesoderm undegoes segementation to form which of the following layers | |||
|type="()"} | |||
- paraxial, intermediate mesoderm and splanchnic mesoderm | |||
+ paraxial, intermediate mesoderm and lateral plate mesoderm | |||
- paraxial, lateral plate mesoderm and somites | |||
- paraxial, lateral plate and splanchnic mesoderm | |||
|| Option two is correct as the mesoderm initially segments to form paraxial, intermediate mesoderm and lateral plate mesoderm. The paraxial mesoderm forms into somites and lateral plate mesoderm divides into somatic and splanchnic mesoderm. | |||
{Which of the following events occurs in week 4 of gestational age. | |||
|type="()"} | |||
- Mesentry development | |||
+ hepatic diverticulum development begins | |||
- Canalization occurs | |||
- Intestine herniation occurs | |||
|| Canalization and Mesentry development occur in week 7 while intestine herniation occurs in weeks 10-12. The only event occurring in week 4 of GA is hepatic diverticulum development. | |||
{Which of the following are part of the adult foregut? | |||
|type="()"} | |||
+ celiac artery, upper duodenum, liver | |||
- superior part anal canal, jejunum, liver | |||
- liver, superior mesenteric artery, cecum | |||
- inferior mesenteric artery, rectum, celiac artery | |||
|| The adult foregut consists of the celiac artery, upper duodenum, liver and respiratory tract. The adult midgut consists of jejunum, ileum, cecum, appendix, ascending colon, half transverse colon, superior mesenteric artery. The adult hindgut consists of descending colon, rectum, superior part anal canal, inferior mesenteric artery and transverse colon. | |||
{The lumen abnormality Atresia can be describe as: | |||
|type="()"} | |||
- Narrowing of the lumen | |||
- The formation of parallel lumens. | |||
+ Interruption of the lumen | |||
- Inflammation of the meninges of the brain. | |||
||Narrowing of the lumen is known as stenosis. The formation of parallel lumens as a result of incomplete recanalization is known as duplication. The inflammation of the meninges of the brain is known as meningitis. Atresia is defined as the interruption of the lumen. | |||
{The level of the end of foregut and the begins of midgut is at the level of: | |||
|type="()"} | |||
- Pharynx | |||
- Larynx | |||
+ Between stomach and duodenum | |||
- Between duodenum and jejunum | |||
|| In embryo, all the features above the yolk stalk are called foregut, jejunum is part of the midgut. On the other hand, the organs connected to celiac artery are foregut (up to upper part of duodenum, gallbladder and pancreas). '' | |||
{Which of the following statement is '''WRONG'''? | |||
|type="()"} | |||
+ The abdominal mesentery separated at birth. | |||
- The lumen enlargement of stomach before the positioning of stomach | |||
- Rectum and urinary tube had common space at first place then separated. | |||
|| 1) The abdominal mesentery joins from separated at neonatal stage. 2)The curvatures of stomach forms before the rotation to the anatomical position of stomach. 3) Rectum and urogenital sinus are separated by urogenital septum, and urogenital sinus comes up with urinary tube.'' | |||
{Which of the following statement is '''WRONG''' ?: | |||
|type="()"} | |||
- Definition between Primary and Secondary Villi is the presents of mesoderm in the villi | |||
- There are limited numbers of villi could be found on the chorion laeve at early stages of the embryo. | |||
+ The umbilical vein and artery have no any interaction in the whole umbilical cord | |||
|| 1) Secondary Villi has core of mesoderm with fetal vessel in the middle of villi but not the Primary villi. 2) Villi could be found on chorion laeve side but won't be developed as the frondosum side. 3) umbilical vein is wrapped by two umbilical arteries in the umbilical cord ( for occultation at birth) . '' | |||
{Which of the following will become part of the placenta?: | |||
|type="()"} | |||
+ Decidua placentalis | |||
- Decidua capsularis | |||
- Decidua parietalis | |||
|| Decidua '''placentalis’’’ | |||
{The incidence of Gastroschisis is: | |||
|type="()"} | |||
+ 1.66/10,000 | |||
- 1.66/1,000 | |||
- 1.66/100 | |||
- 1.66/10 | |||
{There are three distinct portions of the GIT by the end of week 4. | |||
|type="()"} | |||
+ TRUE. | |||
|| The GIT at this point in development is formed by the Foregut, the Midgut and the Hindgut. | |||
- FALSE. | |||
{The Gastrointestinal Tract does not function until after birth. | |||
|type="()"} | |||
+ TRUE. | |||
|| The GIT does not function until after birth due to the lack of bacterial population, enzymal production and immune response within the walls of the GIT. The lack of GIT function is also due to the fact that nutrients before birth are passed through the mother's umbilical cord directly into the baby's bloodstream. | |||
- FALSE. | |||
|| The GIT does not function until after birth due to the lack of bacterial population, enzymal production and immune response within the walls of the GIT. The lack of GIT function is also due to the fact that nutrients before birth are passed through the mother's umbilical cord directly into the baby's bloodstream. | |||
{Intestinal Aganglionosis is a condition where: | |||
|type="()"} | |||
- There are bands crossing the duodenum causing obstruction. | |||
|| This condition is known as Ladd's Bands. | |||
- There is improper closure and absorption of the vitelline duct during development | |||
|| This condition, known as Meckel's diverticulum, occurrs in 1-2% of the population, affecting the vitelline duct which connects the yolk to the incomplete, primitive GIT. | |||
+ There is an absence of the ENS within the GIT. | |||
|| This condition is known as Intestinal Aganglionosis, has implications such as loss of gastric motility. This disorder occurs as the Neural crest cells migrating to the cranial portion of the GIT fail to migrate caudally during development of the GIT. It can thus be seen that Agangliosis occurs mainly at the anal portion of the GIT, increasing in severity as it tends towards the cranial portion. | |||
- There is a narrowing of the lumen of the GIT. | |||
|| This condition is known as stenosis, or the narrowing of a passageway. | |||
{Which of the following statements are true? | |||
|type="()"} | |||
- The paraxial mesoderm will form cardiovascular structures such as the heat and GIT strucutes | |||
- The intermediate mesoderm will form the body wall | |||
+ The lateral plate mesoderm will form structures such as the stomach and small intestine | |||
- The intermediate mesoderm will form somites | |||
|| Option C is correct as the lateral plate mesoderm will later form GIT structures, which include organs such as the stomach and small intestine. In contrast, paraxial mesoderm will form somites whilst the intermediate mesoderm will eventually form urogenital structures such as the kidneys and genitals. | |||
{What day are the first pair of somites formed and how many pairs of somites are formed altogether | |||
|type="()"} | |||
- Day 19 and 40 pairs of somites | |||
- Day 22 and 43 pairs of somites | |||
- Day 21 and 41 pairs of somites | |||
+ Day 20 and 44 pairs of somites | |||
|| Option D is correct: It is known that the first pair of somites will form by day 20 and that there are 44 pairs of somites formed. | |||
{The sclerotome will form: | |||
|type="()"} | |||
+ a single vertebral body and intervertebral disc after being subdivided | |||
- Dermatomes across the whole body | |||
- Skeletal muscles of the back (erector spinae) as well as those of the thorax and abdomen | |||
- The overlying epidermial layer of the skin | |||
|| Option A is correct: This is because the Sclerotome will become subdivided, whereby the rostral and caudal halves become separated by a fissure known as Von Ebner’s fissure. One half of the somites contribute to a single vertebral body whilst the other half will form the intervertebral disc, which is a fibrocartilaginous structure located between the vertebral bodies of C2-S1. | |||
{Which of the following is false: | |||
|type="()"} | |||
- Neural crest cells will form skin melanocytes | |||
+ Neural crest cells will form the neural tube | |||
- Neural crest cells will form teeth odontoblasts | |||
- Neural crest cells will form the pia-arachnoid sheath | |||
|| Option B is correct. It is important to note that neural crest cells will form structures belonging to the peripheral nervous system. It does not form the neural tube, but rather surrounding structures such as the dorsal root ganglia. | |||
{The first organ to form after the development of the heart is the: | |||
|type="()"} | |||
+ Liver | |||
- Stomach | |||
- Pancreas | |||
- Gall Bladder. | |||
||The liver is the first organ to form following the development of the heart. The stomach, pancreas and gall bladder all develop soon after. | |||
{How many rotations does the stomach undergo during GIT development in week 4 to 5? | |||
|type="()"} | |||
- 1 | |||
+ 2 | |||
- 3 | |||
- 4 | |||
|| The stomach undergoes [[two]] embryonic 90 degree rotations: the first to establish the J-shape that forms the adult stomach body (classic curvature), and the second rotation establishes it in its correct anatomical position. | |||
{Following the degeneration of the buccopharyngeal membrane, the foregut is open to which cavity? | |||
|type="()"} | |||
- The peritoneal cavity | |||
- The chorionic cavity | |||
- The yolk sac | |||
+ The amniotic cavity | |||
|| During week 4 of development, the breakdown of the buccopharangeal membrane exposes the foregut to the amniotic cavity where amniotic fluid is then able to fill the foregut. | |||
{Which one of these is not an abnormality that can occur during the proliferation and re-canalisation of the gut tube? | |||
|type="()"} | |||
- Occlusion | |||
+ Meckel's diverticulum | |||
- Duplication | |||
- Stenosis | |||
||During re-canalisation, if the gut tube does not re-canalise the tube can remain completely occluded. Another senario would be if there is renalisation but it occurs in discrete channels to give rise to duplicated gut tubes. The third abnormality occurs when there is incomplete vasculisation which leads to stenosis or narrowing of the tube. The only abnormality that is not involved in Meckel's diverticulum and is associated with failure of Vitelline duct breakdown leaving a yolk stalk remnant. It is a common abnormality with a prevalence of 1-2% and can lead to infection and possibly affect the rotation of the midgut. | |||
{During week 4 in GIT development: | |||
|type="()"} | |||
- The cloacal membrane is broken down while the buccopharyngeal membrane remains intact | |||
+ The buccopharyngeal membrane is broken down while the cloacal membrane remains intact | |||
- Both the buccopharyngeal and cloacal membranes break down simultaneously | |||
- Both the buccopharyngeal and cloacal membranes remain intact. | |||
||Loss of the buccopharangeal membrane during week 4 allows amniotic fluid into the foregut. The cloacal membrane remains intact and does not break down until the cloaca is divided into urogenital sinuses and the rectum (occurs later in embryonic development. | |||
{1. Which of the following options lists the order of events that happen at different stages in liver development of an embryo? | {1. Which of the following options lists the order of events that happen at different stages in liver development of an embryo? | ||
|type="()"} | |type="()"} | ||
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||<br>Paraxial mesoderm forming the early somite does initially form a '''transient epithelial layer''' that covers each somite. This layer breakdown with later development, allowing the somite components to disperse. The sclerotome component of each somite pair engulf the left and right side of the notochord '''forming the entire axial column''', that includes the vertebra and intervertebral disc (from each somite). '''Somatic not somitic mesoderm''' forms the body wall osteogenic, chrondrogenic and fibrogenic cells. Don't mix up somatic/somitic. You may have had to think about this as the dermatome, forming the dermis and fibrogenic cells, does mix with somatic mesoderm later in development, but does not contribute either osteogenic or chrondrogenic cells. Myotomes contribute the '''skeletal muscle not smooth muscle'''. The GIT smooth muscle comes from splanchnic mesoderm. | ||<br>Paraxial mesoderm forming the early somite does initially form a '''transient epithelial layer''' that covers each somite. This layer breakdown with later development, allowing the somite components to disperse. The sclerotome component of each somite pair engulf the left and right side of the notochord '''forming the entire axial column''', that includes the vertebra and intervertebral disc (from each somite). '''Somatic not somitic mesoderm''' forms the body wall osteogenic, chrondrogenic and fibrogenic cells. Don't mix up somatic/somitic. You may have had to think about this as the dermatome, forming the dermis and fibrogenic cells, does mix with somatic mesoderm later in development, but does not contribute either osteogenic or chrondrogenic cells. Myotomes contribute the '''skeletal muscle not smooth muscle'''. The GIT smooth muscle comes from splanchnic mesoderm. | ||
</quiz> | </quiz> | ||
|} | |||
==2015== | ==2015== |
Latest revision as of 13:36, 2 September 2016
Lab 4 Assessments
Now have a look at the range and type of questions that your peers set for the Quiz assessment.
Student Quiz Questions |
---|
|
2015
Select one of the topics shown below and write 3 paragraphs (with referenced sources) on that specific topic.
- Cleft Lip and cleft palate are associated with many different environmental and genetic causes. Identify and describe one cause of these abnormalities.
- Discuss how aganglionic colon is a gastrointestinal tract abnormality related to neural crest migration.
- What is the difference between gastroschisis and omphalocele?
2014 Student Signature and Selected abnormality
--Z3417753 (talk) 22:36, 9 September 2014 (EST) Laryngeal-tracheo-oesophageal Cleft
--Z3416697 (talk) 23:18, 4 September 2014 (EST) Lobar Emphysema
--Z3463310 (talk) 13:52, 5 September 2014 (EST) Omphalocele
--Z3414515 (talk) 16:34, 5 September 2014 (EST) Esophageal Stenosis
--Z3417843 (talk) 16:55, 5 September 2014 (EST) Meconium Aspiration Syndrome
--Z3333429 (talk) 17:19, 5 September 2014 (EST) Newborn Respiratory Distress Syndrome - (Hyaline Membrane Disease)
--Z3417458 (talk) 17:40, 5 September 2014 (EST) Congenital Diaphragmatic Hernia
--Z3418340 (talk) 19:26, 5 September 2014 (EST) Anular Pancreas
--Z3417796 (talk) 21:47, 6 September 2014 (EST) Bronchopulmonary Dysplasia
--Z3465654 (talk) 14:14, 7 September 2014 (EST) Cystic Fibrosis
--Z3415242 (talk) 18:36, 7 September 2014 (EST) Laryngeal Atresia
--Z3419587 (talk) 23:14, 7 September 2014 (EST) Congenital Laryngeal Webs
--Z5030311 (talk) 14:02, 8 September 2014 (EST) Aganglionic colon (Hirschprung's disease)
--Z3414648 (talk) 20:37, 8 September 2014 (EST) Congenital Pulmonary Airway Malformation (CPAM)
--Z3418989 (talk) 20:53, 8 September 2014 (EST) Meckel's diverticulum
--Z3330991 (talk) 22:16, 8 September 2014 (EST) Cleft Palate/Lip
--Z3418981 (talk) 09:46, 9 September 2014 (EST)Azygos Lobe
--Z3422484 (talk) 10:27, 9 September 2014 (EST) Alveolar capillary dysplasia
--Z3332339 (talk) 13:24, 9 September 2014 (EST) Developmental asthma
--Z3372817 (talk) 14:39, 9 September 2014 (EST) Meconium plug syndrome
--Z3415716 (talk) 17:39, 9 September 2014 (EST) Oesophageal atresia
--Z3418702 (talk) 18:15, 9 September 2014 (EST) Bronchogenic cysts
--Z3418779 (talk) 20:44, 9 September 2014 (EST) Anorectal Malformation
--Z3418488 (talk) 22:11, 9 September 2014 (EST) Pyloric Stenosis
--Z3375627 (talk) 23:42, 9 September 2014 (EST) Cloacal Extrophy
--Z3418837 (talk) 01:52, 10 September 2014 (EST) Midgut Volvulus
--Z3374116 (talk) 03:10, 10 September 2014 (EST) Duodenal Web / Duodenal Atresia
--Z3418698 (talk) 10:21, 10 September 2014 (EST)Pulmonary surfactant metabolism dysfunction
--Z3415141 (talk) 11:11, 10 September 2014 (EST) Extrahepatic billary atresia
--Z3465141 (talk) 14:19, 12 September 2014 (EST) Gastroschisis
Biomedical Research Expo 2014
FYI only - this is not your online assessment.
4 September 2014 (this Thursday) - Wallace Wurth Building, Ground Floor Atrium - South wing. 5pm – 7pm
Come along and meet the researchers from different groups and see what Honours and Postgraduate projects are available in their labs. Discuss their research and find out more.
See you there!
My Lab research - Ectopic Implantation Research | Human Embryo Collections | Delirium