Deck 8: Digestive System Motility and Secretion

Question 1

Small intestine motility is stimulated by the following except:

A)Gastrin
B)CCK
C)Secretin
D)Motilin.

Answer 1

Secretin

Question 2

Small intestine motility is inhibited by the following except:

A)Somatostatin.
B)VIP.
C)Adrenaline
D)Insulin.

Answer 2

Insulin.

Question 3

Motility of small intestine is inhibited by the following except:

A)Intestino-intestinal reflex
B)Vesico-intestinal reflex.
C)Peritoneal irritation
D)Distention of stomach.

Answer 3

Distention of stomach.

Question 4

Large intestinal secretion is stimulated by:

A)Direct stimulation.
B)Local myentric reflex.
C)Para sympathetic stimulation.
D)All of the above.

Question 5

Colonic motility is stimulated by the following except:

A)Gastro-colic reflex.
B)Colono-colic reflex.
C)Duodeno-colic reflex.
D)none

Question 6

Emptying at ileocecal region is promoted by:

A)Distenion of cecum
B)Distention of colon.
C)Distention of stomach.
D)Sympathetic reflex.

Question 7

Emptying at ileocecal region is inhibited by:

A)Gastroileal reflex.
B)Gastrin
C)Colonoileal reflex.
D)Distention of terminal ilium.

Question 8

Removal of the entire colon would be expected to cause:

A)Megaloblstic anemia.
B)Severe malnutrition.
C)Decrease urinary urobilinogen.
D)Death.

Question 9

The parasympathetic supply of the distal colon is:

A)Pelvic nerve.
B)Vagus nerve
C)The lesser splanchnic nerve.
D)The pudendal nerve.

Question 10

The external anal sphincter is supplied by:

A)Pelvic nerve.
B)Pudendal nerve.
C)Vagus nerve
D)none

Question 11

Large intestine secretion is stimulated by:

A)Direct stimulation.
B)Local .myentric reflex.
C)Parasympathetic stimulation.
D)All the above.

Question 12

Mass movement in the colon after meal is due to the following except:

A)Gastrocolic reflex
B)Duodenocolic reflex
C)Gastrin hormone.
D)Secretine hormone.

Question 13

Mass movement in the colon would be abolished by:

A)Vagotomy.
B)Sympathectomy.
C)Destruction of the intrinsic nerve plexus.
D)none

Question 14

The following are true about defecation except:

A)It is initiated by distention of rectum with feces.
B)It is facilitated by micturition reflex.
C)It is under voluntary control in infant.
D)It is inhibited by pain.

Question 15

Anal mucosa is sensitive to all of the following except:

A)Pain
B)Stretch.
C)Touch
D)Temperature

Question 16

Rectal mucosa is sensitive to:

A)Pain
B)Touch
C)Temperature
D)Stretch

Question 17

Resting anal pressure is mainly due to :

A)Tone of external anal sphincter
B)Tone of the internal sphincter.
C)Tone of the puborectalis muscle.
D)none

Question 18

Fecal continence requires:

A)Intact innervations of anorectal region
B)Sensation of rectum and anal mucosa.
C)Tone of the internal and external anal sphincter
D)All of the above