Lecture 6 Flashcards
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RESPIRATORY DIVERTICULUM
septum that separates the trachea from the gut tube
tracheoesophageal septum
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PLEURAL CAVITY
pertaining to the wall of any cavity
parietal
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PARIETAL PLEURA
relating to the organ of the body
visceral
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VISCERAL PLEURA
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ALVEOLI
cells lining the alveoli
involved in gas exchange
type 1 alveolar cells
cells lining the alveoli
cells that produce surfactant
type 2 alveolar cells
phospholipid made by alveolar type 2 cells that reduce surface tension in alveoli
essential for respiration
production does not begin until the end of the 6th month, making it difficult for premature babies born before 6 months to survive
surfactant
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RESPIRATORY DISTRESS SYNDROME
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HYALINE MEMBRANE DISEASE
the specific cells of a gland or organ held together by connective tissue called the stroma
parenchyma
double layer of peritoneum that connects portions of the gut or other viscera to the body wall or to each other
provide pathways for nerves, blood vessels, and lymphatics to and from the viscera and help to support the organs in the abdomen
mesentery
organs suspended in the abdominal cavity by a mesentery
intraperitoneal
posterior to the peritoneum
retroperitoneal
space created posterior to the stomach by gut rotation
this space connects to the rest of the peritoneal cavity (greater peritoneal sac) through the epiploic foramen (of Winslow)
Omental bursa (lesser peritoneal sac)
fold of peritoneum passing from the stomach to the liver (lesser) or from the stomach to the transverse colon and beyond (greater)
omentum
opening between the lesser and greater sacs in the abdominal cavity located at the free margin of the lesser omentum between the duodenum and hte liver
in its ventral border lie the common bile duct, hepatic artery, and portal vein (the portal triad)
epiploic foramen (of Winslow)
part of the ventral mesentery that attaches the liver to the ventral body wall
falciform ligament
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PORTAL TRIAD
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PRIMARY INTESTINAL LOOP
connection b/w the yolk sac and the primary intestinal loop of the midgut through the connecting stalk
failure of this duct to degenerate results in fistulas and diverticula (Meckel’s diverticulum) from the small intestine to the umbilicus
vitelline duct
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PHYSIOLOGICAL UMBILICAL HERNIATION
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ANNULAR PANCREAS
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MOBILE CECUM
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VOLOVULUS
ventral body wall defect caused by failure of physiologically herniated loops of bowel to return to the body cavity in the tenth week of development
Omphalocele
ventral body wall defect
results from lack of closure of the laterl body wall folds in the abdominal region
results in protrusion of intestines and sometimes other organs through the defect
gastroschisis
caused by the failure of the vitelline duct to degenerate
diverticulum from the small intestine to the umbilicus
Meckel’s diverticulum
congenital absence of an opening or lumen
Ex: gut atresia
atresia (i.e. gut atresia)
a narrowing of a canal or orfice
Ex: gut stenosis
stenosis (i.e. gut stenosis)
wedge of mesoderm that grows down between the hindgut and primitive urogenital sinus–partially separates these two structures
caudal end of the septum forms the perineal body
urorectal septum
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URORECTAL FISTULA
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RECTOVAGINAL FISTULA
