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Epithelium and Glands are derived from...
Submucosa and Tunica Serosa/Adventitia are derived from...
Cephalic End =>
Middle part =>
Caudal End =>
- Cephalic End =>ForeGut
- Middle part => Midgut
- Caudal End => Hind Gut
Yolk Sac is lined by ___derm and forms the _____
5 Regions of the GI tract
The stomodeum and proctodeum are _____ depressions
Buccopharyngeal Membrane formed by ____ and _____
- Foregut ENDOderm
- Stomodeum ECTOderm
The cloacal membrane if formed by the ____ and ____
- Hindgut ENDOderm
- Proctodeum ECTOderm
Stomodeum extends from the ___ to ___
Oral opening to the buccopharyngeal opening
Foregut extends from ___ to ___
Buccopharyngeal Opening to Cranial Intestinal Portal
The midgut extends from ____ to ____
cranial to caudal intestinal port
The Hindgut extends from the ____ to ____
Caudal Intestinal Port to the Cloacal Membrane
The proctodeum extends from the
Cloacal Membrane to the External Opening
The mouth derives from the:
The Foregut forms the (4):
- *Cranial Duodenum
The Midgut forms the (5):
- *Caudal Duodenum
- *Cranial Colon
The Proctodeum forms (2):
Greater Curvature of the stomach shifts to the ___
The Pyloric Region (Caudal End) shifts to the ___
The Spleen is derived from which layer?
Omentum, Medosuodenum and Mesentery is derived from
In ruminants, which parts develop from an outpocketing of teh simple stomach?
*Rumen, Reticulum and Omasum develop from...
Dorsal side of the stomach ->
Ventral side of the stomach ->
- Dorsal -> Greater Curvature
- Ventral -> Lesser Curvature
1st rotation of the stomach =>
Greater Curvature -> L
2nd rotation of the stomach =>
Caudal end -> R and Cranially
Spleen is derived from ___ of the ___
Mesoderm of the Dorsal Mesogastrum
Which chamber is the smallest in...
- L Rum- Reticulum
- S Rum- Omasum
What causes rotation during the development of the midgut?
Cranial loop grows faster than the caudal loop
Cranial Limb of the midgut=
- Distal Duodenum
Caudal Limb of the midgut=
- Ascending and (part of) transverse Colon
Dogs & Cats:
- Dogs & Cats: Straight
- Cattle: Spiral loop w/ 2centrifugal/2centripedal
- Goat/Sheep:Spiral Loop w/ 3centrifugal/3centripedal
- Equine: 2 limbs that differentiate further
- Pig: Centripedal and Centrifugal coils
The Urorectal Septum is derived from:
The urorectal septum divides the ___ into the ___ & ___
... cloaca into the Rectum & Urogenital Septum
The proctodeum develops into the
Anal Canal & Anus
Atresia Ani occurs when
the anal mem does not break down
Clinical Sign of Urorectal Fistula
Feces in urine
Clinical Sign of Meckel's Diverticulum
Feces from umbilicus
Clinical Signs of Omphalocele
Clinical Signs of Patent Urachus (Urachal Fistgula)
Urine from umbilicus
What causes omphalocele?
Midgut loop does not retract
The hepatic bud is derived from the ____
The hepatic bud forms:
- Pars Hepatica
- Pars Cystica
Pars Hepatica forms (2):
- Liver Parenchyma
- Hepatic Ducts
In the liver, what is derived from the endoderm (4)?
In the liver, what is derived from the mesoderm (2)?
In the liver, what is derived from the Splanchnic Mesoderm (2)?
____ + ____ open into the Major Duodenal Papilla
Cystic Duct + Hepatic Duct
Accessory Pancreatic Duct is absent in
Pancreatic Duct is absent in
Pancreas is derived from the
Rotation of the stomach results in the formation of the..
The lung bud appears as an outgrowth from the...
ventral wall of the foregut
Laryx, trachea and bronci are derived from
Cartilagenous and muscular components of the respiratory system are derived from
Pulmonary Macrophages are derived from
Special respiratory structure found in ruminants:
The tracheal bronchus connects the...
Significant respiraoty changes that occur just after birth (4):
- Increase [CO2} =>
- Respiratory Center =>
- Respiration =>
- Lungs expand
What begins to contrict w/ the onset of respiration?
What prduces surfactant?
How is fluid removed from the lungs (3):
- Pharyx/Oral Cavity
- Pulm. Lymphatics
What causes Respiratory Distress (2)?
- Insufficient surfactant
Clinical Symptoms of Respiratory Distress (2)?
- Barker Foal Syndrome
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