Development of the Body Cavities and Mesenteries

Question 1

the intermediate mesoderm helps form the

Answer 1

urinary system

Question 2

the lateral plate mesoderm helps form the

Answer 2

abdomen

Question 3

paraxial mesoderm helps form

Answer 3

somites

Question 4

What are the two parts of the lateral plate mesoderm

Answer 4

somatic mesoderm and splanchnic mesoderm

Question 5

the somatic mesoderm helps gives rise to

Answer 5

parietal layer (GSA)

Question 6

the splanchnic mesoderm helps give rise to

Answer 6

viscera layer (GVA)

Question 7

intraembryonic coelom

Answer 7

is the early start of the body cavity; the space between the somatic mesoderm and the splanchnic mesoderm

Question 8

pleuropericardial folds are covered on both sides with somatic mesoderm and gives rise to

Answer 8

somatic layer of the serous pericardium
fibrous pericardium
mediastinal pleura

Question 9

the septum transversum helps give rise to

Answer 9

central tendon

Question 10

the pleuroperitoneal membranes help give rise to

Answer 10

outgrowth of the body wall contact the septum transversum

Question 11

paraxial mesoderm helps give rise to

Answer 11

muscular portion of diaphragm

Question 12

dorsal mesentery helps give rise to

Answer 12

right and left crura

Question 13

diaphgragmatic hernias

Answer 13

results from failure of pleuroperitoneal membrane to close the pericardioperitoneal canal

Question 14

esophageal hernias

Answer 14

do to defect in the right crus and or short esophagus (dorsal mesentery); the upper part of the stomach is retained in the thorax and the stomach is restricted at the level of the diaphragm

Question 15

parasternal hernia

Answer 15

results from a deficit between the sternal and costal heads of the diaphragm; may go undetected until the child is several years old (deficity in paraxial mesoderm)

Question 16

forgut

Answer 16

celiac artery

Question 17

mid gut

Answer 17

superior mesenteric artery

Question 18

hindgut

Answer 18

inferior mesenteric artery

Question 19

formation of the spleen

Answer 19

derives from mesenchymal cells

Question 20

derivatives of ventral mesenteries

Answer 20

lesser omentum
hepatogastric
hepatoduodenal
falciform ligament
coronary ligament
right and left triangular ligaments

Question 21

derivatives of dorsal mesentery

Answer 21

mesoesophagus,, mesogastrium (gastro splenic, phrenic and colic) phrenicolienal, prenicocolic, mesentery proper, mesoappendix, transverse mesocolon, and sigmoid colon

Question 22

peritoneal cavity

Answer 22

sac lined by a thick layer to tissue called peritoneum, serous fluid normally in the cavity

Question 23

peritoneal

Answer 23

covered on all sides with peritoneum has a mesentery

Question 24

retroperitoneal

Answer 24

organs not covered on all sides by peritoneum

Question 25

primary peritoneal

Answer 25

never had a mesentery

Question 26

secondary retroperitoneal

Answer 26

had a mesentery but became retroperitoneal

Question 27

peritoneal organs

Answer 27

stomach, spleen, 1,4 dudoenum, jejunum, ilieum transverse and sigmoid colon

Question 28

primary retroperitoneal organs

Answer 28

kidneys, ureters, bladder, aorta, and IVC

Question 29

secondary retroperitoneal organs

Answer 29

parts 2 and 3 of duodenum, ascending colon, descending colon, rectum pancreas, gall bladder and the liver