Unit 1- Intestine

Question 1

Atresia Coli

Answer 1

No rectum, occurs in pig and holstein calves

Question 2

Atresia

Answer 2

Narrowing or absence of body orifice

Question 3

Most common intestinal anomaly

Answer 3

Atresia coli

Question 4

Congenital anomalies of intestine

Answer 4

Usually involve the lumen

Question 5

Atresia Ani

Answer 5

No anus

Question 6

Atresia Ani Survival

Answer 6

Recto-vaginal fistula, cranial to anus will be megacolon and prominent cecum

Question 7

Lethal White Syndrome

Answer 7

Congenital colonic aganglionosis, no parasympathetic ganglia in colon, poorly developed, meconium impaction

Question 8

Meconium

Answer 8

First green poo as neonate

Question 9

Lethal White Syndrome Genetics

Answer 9

White paint horses carriers, white foals are affected

Question 10

Enterolith

Answer 10

Lamellae of struvite deposit around foreign body nucleus in horse

Question 11

Parascaris equorum

Answer 11

Intestinal impaction in foal, dilatation will occur cranial to obstruction

Question 12

Rectal Stricture

Answer 12

Vasculitis from Salmonella typhimurium or penetrating wound in pigs will lead to scar and stricture

Question 13

Hernia

Answer 13

Displacement of an organ through abnormal opening

Question 14

Internal Hernia

Answer 14

Rare, intestines displaced through foramina WITHIN abdominal cavity

Question 15

Internal Hernia Causes

Answer 15

Epiploic foramen or tear in omentum/mesentery

Question 16

External Hernia

Answer 16

DIsplacement of viscera outside abdominal cavity

Question 17

Hernial Contents

Answer 17

Displaced viscera

Question 18

Hernial Sac

Answer 18

Pouch formed by peritoneum and skin

Question 19

Hernial Ring

Answer 19

Opening through which viscera is displaced

Question 20

Eventration

Answer 20

Displaced contents not within sac, can be traumatic, leads to sepsis and venous infarct due to mesenteric compression

Question 21

Diaphragmatic Hernia

Answer 21

Liver and small intestine through diaphragm, common in cat

Question 22

Scrotal Hernia

Answer 22

Displacement of intestines through inguinal canal to scrotum, complication of castration and can lead to incarceration

Question 23

Incarceration

Answer 23

Intestines can get stuck in hernia

Question 24

Umbilical Hernia

Answer 24

Can fluctuate in size until intestine is strangulated

Question 25

Strangulated Intestine Appearance

Answer 25

Infected, swollen, dark, and friable

Question 26

Colonic Torsion

Answer 26

Left colon susceptible in horse, presents with colic

Question 27

Intestinal Volvulus

Answer 27

Torsion along mesenteric axis, common in horse presenting with colic

Question 28

Pedunculated Lipomas

Answer 28

Common in equine mesentery, stalk allows lipoma to rotate and can become mineralized, strangulating intestine

Question 29

Intussusception

Answer 29

Intestine telescoping, drags and tears mesentery, leading to venous infarction, discolored, ulcerated, and hemorrhagic

Question 30

Intussuscipiens

Answer 30

Outside of telescoping

Question 31

Intussusceptum

Answer 31

Piece going inside

Question 32

Intussusception Pathogenesis

Answer 32

Same as volvulus and torsion, can be associated with increased peristaltic activity from coccidiosis

Question 33

Anoplocephala perfoliata

Answer 33

Horse tapeworm

Question 34

Enteritis

Answer 34

Intestinal inflammation

Question 35

Typhlitis

Answer 35

Cecum inflammation

Question 36

Colitis

Answer 36

Colon inflammation

Question 37

Proctitis

Answer 37

Rectum inflammation