extra 23

Question 1

acessory organs dont

Answer 1

carry food

Question 2

Ingestion:
propulsion:
Mechanical digestion:
Chemical digestion:
Absorption:
Defecation:

Answer 2

-the process of taking food and liquids into the mouth; occurs in oral cavity (mouth)
-The movement of food through the digestive tract; begins in the oropharynx and continues throughout the alimentary canal
- The physical breakdown of food into smaller pieces to increase surface area for enzymatic action; in mouth (chewing), stomach (churning), small intestine
-The breakdown of complex molecules into their building blocks using enzymes; begins in the mouth (salivary enzymes), continues in the stomach (gastric enzymes), and is completed in the small intestine (pancreatic and intestinal enzymes).
-The transport of digested nutrients from the lumen of the digestive tract into the blood or lymph; primarily occurs in the small intestine (most nutrients) and large intestine (water and electrolytes)
-The elimination of indigestible substances and waste products (feces) through the anus; in the large intestine and anus.

Question 3

Hepatic portal circulation

Answer 3

Drains nutrient- rich blood from digestive organs