Specialized Digestion and Illness

Question 1

Types of Digestion

Answer 1

• humans have complete digestive system
• animal species has unique adaptations to obtain and digest food
• moquoites have specialized mouth to suck blood and digestive system to obtain nutrients

Question 2

Digestion in simple animals

Answer 2

• 1 opening and 1 region of digestion
• flatworms and jellyfish
• has 1 digestive sac called gastrovascular cavity
• 1 way diestion (food gets in out out same way)
• Food is broken down in the cavity by chemicals and are absorbed by the surrounded cells

Question 3

digestion is complex animals

Answer 3

• 2 openings and spzlized regions
• earthworm
• has digestive tracts organized into specialized regions that enable the breakdown
• absorption of food that moves only in one direction

Question 4

Pancreas

Answer 4

• long flat gland found between your stomach and your duodenum
• secrets stomach nurtizling and (NaH03, insulin

Question 5

pancreases enzymes

Answer 5

• Amylase is secreted to help digest starch
• Trypsin is secreted to help digest protein
• Lipases are secreted to help break down lipids

Question 6

Liver

Answer 6

• largest internal organ
• releases bile to emsulify fats
• breaKs it down into droplets called micelles to make it eaiser to digest
• can regerante (not with scar tissue)
• filters the blood of toxins (alcohol)
• stores carbohydrates as glycogen
• stores fat soluble vitamins, and many other important functions

Question 7

gallbladder

Answer 7

• bile from the liver goes to the gallbladder
• extra storage
• When lipids enter the duodenum it stimulates gall bladder contractions
• It can be released to the duodenum via the bile duct

Question 8

Acid Reflux

Answer 8

caused when the gastroesophageal sphincter does not fully close
acid from the stomach enters the esophagus and cause a burning sensation
-caused by overeating
- smoking which relaxes the sphincter - increases acid production

Question 9

Stomach Ulcers

Answer 9

• Caused by Helicobacter pylori (bacteria)
• can survive in the low pH of the stomach by secreting acid-neutralizing enzymes
• burrows into the mucus layer of the stomach and prevent the production of this mucus
• eats away stomache causing ulcer
• Ulcers can bleed and can be quite painful
• can be treated by antibiotics

Question 10

Endoscopy

Answer 10

• gets pictures of body
• inserted through the mouth, anus or a small incision through a process called endoscopy

Question 11

Endoscopy surgery

Answer 11

• used during surgery
• can remove tissue for a biopsy or to remove a gall bladder in surgery
• imits pain, recovery time, hospital stay and cost
• laparoscopy surgery