Digestive Anatomy Review

list two main divisions of the digestive system
alimentary canal
accessory organs

the four main layers of the digestive tract wall are
mucosa
submucosa
muscularis externa
serosa

The mucosa includes a type of columnar _____ that forms the inner lining of the lumen.
cells

blood and lymph vessels of the mucousa are found in its ____ ____ connective tissue layer.
lamina propria

the smooth muscle layer of the mucosa is called the ______ ______
muscularis mucosae

the function of epithelial goblet cells is to secrete
mucous

_______ cells of the mucosa secrete hormones into the blood
enterendocrine

absorption of nutrients occurs through the mucosal epithelium and into either _________ or _______ vessels
blood capillaries or lymph

the muscularis mucosa has both ________ and _______ fibers that function in moving the villi to aid in digestion and absorption.
inner circular fibers and outer longitudinal fibers

the built in (intrinsic) network of nerve cells in the submucosa is the __________ _______
submucosal plexus

the two types of movements produced by contractions of the muscularis externa are _______ and ________
peristalisis and segmentation

The network of neurons in between the two muscle layers of the muscularis externa is the _______ ________
myenteric plexus

the mouth, with its ____ ______ epithelium, is involved in both chemical and _______ digestion.
stratified squamous, mechanicla

List four regions of the stomach
cardia, fundus, body, pylorus

list the three sheets of muscle in the stomachs muscularis externa
longitudinal, circular, oblique

list, in order from the pylorus to the colon, the three regions of the small intestine
duodenum, jejunum. ileum

from largest to smallest, list the three modifications of the small intestines inner wall that function to increase surface area
plicae, villi, microvilli

the microvilli of the small intestinees epithelial cells form the _____ border
brush

the large intestine absorbs ____, _____, and ____
water, electrolytes, vitamins

the anus is liined with ___ _____ epithelium.
stratified squamous

list the 6 sphincters of the digestive tract
upper esophageal, lower esophageal, pyloric, ileocecal, anal

the single digestive function of the liver is to produce ______
bile

the main digestive enzyme producing organ in the body is the
pancreas

three pairs of ______ ______ function to moisten food in the mouth
salivary glands

Stomach 1. Small Intestine Ileum 2. WE WILL WRITE A CUSTOM ESSAY SAMPLE ON ANY TOPIC SPECIFICALLY FOR YOU FOR ONLY $13.90/PAGE Write my sample Small Intestine Jejunum 3. Large intestine (Ascending colon) 4. Gallbladder 5. Liver 6. Parotid salivary …

4 layers of gastrointestinal tract (innermost to outmost) Mucosa Sub mucosa Muscularis externa Serosa Hormones of the GI system are produced and secreted by Enteroendocrine WE WILL WRITE A CUSTOM ESSAY SAMPLE ON ANY TOPIC SPECIFICALLY FOR YOU FOR ONLY …

digestion a process where food is broken down physically and chemically into its smaller diffusible molecules to be absorbed into the blood stream and used by the body absorption process where digested end products pass through the epithelial cells lining …

Mucosa Layer LAYERS: Surface Epithelium Lamina Propria Muscularis Mucosae FUNCTIONS: Protection, Absorption, & Secretion Submucosa Layer LAYERS: (Connective Tissue; Blood; Lymph) FUNCTIONS: Nutrition & Protection WE WILL WRITE A CUSTOM ESSAY SAMPLE ON ANY TOPIC SPECIFICALLY FOR YOU FOR ONLY …

what does the digestive system include? digestive tract and accessory digestive organs what do the accessory organs do? process and break down food WE WILL WRITE A CUSTOM ESSAY SAMPLE ON ANY TOPIC SPECIFICALLY FOR YOU FOR ONLY $13.90/PAGE Write …

1. What are the parts of the gastrointestinal tract? • Also called digestive tract or alimentary canal • Continuous tube in ventral cavity, extend form mouth to the anus. • Includes: i. Mouth, Pharynx ii. Esophagus iii. Stomach iv. Small …

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