BIOS 256- EXAM 1 LATEST UPDATE
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
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Enteric (Intrinsic) nervous system - Answer: Consists of 2 sets of
ganglia or nerve plexi:
-Submucosal plexus
-Myenteric plexus
Submucosal plexus (Meissner's plexus) - Answer: -innervates
muscularis mucosae and effects glandular secretions
-located in the submucosa layer, part of enteric nervous system
Myenteric plexus (Auerbach's plexus) - Answer: -innervates the
muscularis layer of the GI tract and will have an effect on
motility
-nerve supply between the two layers of the muscularis externa
-provides smooth, coordinated contraction for peristalsis
,4 layers of digestive tract - Answer: -mucosa
-submucosa
-muscularis externa
-serosa
Deglutition - Answer: the act of swallowing
Mastication - Answer: the process of chewing; mixed with saliva
to make bolus
Emulsification - Answer: process of breaking up large fat
globules into smaller globules
Peristalsis - Answer: Waves of smooth muscle contraction that
propel the contents of the digestive tract
Chief cells - Answer: secrete pepsinogen and gastric lipase in
the stomach
Parietal cells - Answer: -secrete HCl, ghrelin and intrinsic factor
which is required for the absorption of B12 in the stomach
, GI accessory organs - Answer: -Teeth: mechanically break down
food through chewing
-Tongue: aids in chewing and swallowing food
-Salivary glands: moistens food and begins the chemical
digestion process
-Liver: secretes bile to emulsify fats in the small intestine
-Gallbladder: stores bile
-Pancreas: juice breaks down proteins, fats and carbohydrates
Segmentation - Answer: Kneading and churning
Compaction - Answer: absorb water and consolidate
indigestibles
Enteroendocrine cells - Answer: chemical messengers; secrete
hormones and paracrine messengers that regulate digestion
Function of goblet cells - Answer: secrete mucous
What is the function of hydrochloric acid in the stomach? -
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
Professional Academic Assistance Services
Enteric (Intrinsic) nervous system - Answer: Consists of 2 sets of
ganglia or nerve plexi:
-Submucosal plexus
-Myenteric plexus
Submucosal plexus (Meissner's plexus) - Answer: -innervates
muscularis mucosae and effects glandular secretions
-located in the submucosa layer, part of enteric nervous system
Myenteric plexus (Auerbach's plexus) - Answer: -innervates the
muscularis layer of the GI tract and will have an effect on
motility
-nerve supply between the two layers of the muscularis externa
-provides smooth, coordinated contraction for peristalsis
,4 layers of digestive tract - Answer: -mucosa
-submucosa
-muscularis externa
-serosa
Deglutition - Answer: the act of swallowing
Mastication - Answer: the process of chewing; mixed with saliva
to make bolus
Emulsification - Answer: process of breaking up large fat
globules into smaller globules
Peristalsis - Answer: Waves of smooth muscle contraction that
propel the contents of the digestive tract
Chief cells - Answer: secrete pepsinogen and gastric lipase in
the stomach
Parietal cells - Answer: -secrete HCl, ghrelin and intrinsic factor
which is required for the absorption of B12 in the stomach
, GI accessory organs - Answer: -Teeth: mechanically break down
food through chewing
-Tongue: aids in chewing and swallowing food
-Salivary glands: moistens food and begins the chemical
digestion process
-Liver: secretes bile to emulsify fats in the small intestine
-Gallbladder: stores bile
-Pancreas: juice breaks down proteins, fats and carbohydrates
Segmentation - Answer: Kneading and churning
Compaction - Answer: absorb water and consolidate
indigestibles
Enteroendocrine cells - Answer: chemical messengers; secrete
hormones and paracrine messengers that regulate digestion
Function of goblet cells - Answer: secrete mucous
What is the function of hydrochloric acid in the stomach? -
