L6 - Digestive System

Question 1

Digestive system

Answer 1

The system of organs and tissues adapted for the breakdown and absorption of nutrients into the human body

Question 2

Mechanical digestion

Answer 2

Physical breakdown of food material into smaller pieces

Question 3

Chemical digestion

Answer 3

Breakdown of food materials into their chemical constituents using digestive secretions

Question 4

Buccal cavity

Answer 4

AKA the mouth or oral cavity, an opening at the top of the respiratory and digestive systems supported by the muscles & bones of the skull containing the teeth, tongue, and salivary glands

Question 5

Teeth

Answer 5

Hard resistant structures occuring on the jaws and in the mouth used for masticating (chewing)

Question 6

Tongue

Answer 6

Muscular organ in the mouth involved in licking, tasting, breathing, swallowing and speaking

Question 7

Salivary glands

Answer 7

Glandular organs located within the walls of the mouth that secrete saliva

Question 8

Saliva

Answer 8

AKA spit, a watery fluid secreted within the mouth that moistens and lubricates chewed food, and contains both digestive and immune enzymes

Question 9

Esophagus

Answer 9

Flexible, muscular tube extending between the throat and the top of the stomach

Question 10

Peristalsis

Answer 10

The rhythmic alternating contraction and relaxation of circular and longitudinal muscle bands ina long the entire digestive tract that advances materials from swallowing to excretion

Question 11

Stomach

Answer 11

A muscular pouch primarily used for temporary food strorage and to mix food materials with various gastric juices

Question 12

Small intestine

Answer 12

Longest organ of the digestive system (5.5 m long) and the primary organ for both chemical digestion and nutrient absorption

Question 13

Liver

Answer 13

Largest internal organ, a multifunctional organ that secretes several digestive enzymmes that are secreted into the small intestine, including bile

Question 14

Bile

Answer 14

Fluid secreted by the liver that aids in the digestive enzyme for lipids and as an emulsifier that aids in the absorption of lipids

Question 15

Gall Bladder

Answer 15

Pouch-like organ that stores bile before it is secreted into the small intestine

Question 16

Pancreas

Answer 16

Endocrine organ that secretes several digestive enzymes as well as insulin, the hormone that regulates blood sugar concentrations and a solution of sodium bicarbonate (NaHCO3) to neutralize the acidity of the chyme as it passes through the small intestine

Question 17

Large intestine

Answer 17

AKA colin, a large diameter tube conencting the lower end of the small intestine to the anus