NLN PAX ANATOMY AND PHYSIOLOGY
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
Mechanical digestion - ANS Part of digestion that uses movement and muscles to break
down food into smaller pieces
digestion - ANS breaking down nutrients into small, soluble molecules that can be absorbed
into the blood
chemical digestion - ANS the digestion process in which enzymes are used to break foods
into their smaller chemical buiding blocks
occurs via hydrolysis
hydrolysis - ANS A chemical process that lyses, or splits, molecules by the addition of water;
an essential process in digestion.
enzymes - ANS molecules, usually proteins or nucleic acids, that act as catalysts in
biochemical reactions
used in chemical reactions
1 @COPYRIGHT 2025/2026.
,humans digestion tube extends from - ANS mouth to anus
called alimentary canal
anus - ANS A muscular opening at the end of the rectum through which waste material is
eliminated from the body
alimentary canal - ANS Also known as the gastrointestinal (GI) tract of the digestive tract, the
alimentary canal is the long muscular "tube" that includes the mouth esophagus, somatch,
small intesitne, and large intestine.
carries out stages of digestive process (mechanical and chemical digestion and absorb ion)
accessory organs - ANS In the GI tract, organs that play a role in digestion but not directly
part of the alimentary canal.
These include the liver, the gallbladder, the pancreas
what takes place in the mouth? - ANS mechanical digestion
saliva is released from salivary glands to breakdown carbs
salivary glands - ANS three pairs of exocrine glands in the mouth that secrete saliva
saliva - ANS contain amylase
amylase - ANS enzyme in saliva that breaks the chemical bonds in starches
pharynx - ANS muscular tube at the end of the gastrovascular cavity, or throat, that connects
the mouth with the rest of the digestive tract and serves as a passageway for air and food
2 @COPYRIGHT 2025/2026.
, esophagus - ANS muscular tube that moves food from the pharynx to the stomach
epiglottis - ANS The flap of tissue that seals off the windpipe and prevents food from
entering.
what takes place in the stomach? - ANS peristalsis
gastric juices help breakdown proteins
chyme is created
peristalsis - ANS involuntary waves of muscle contraction that keep food moving along in one
direction through the digestive system
gastric juice - ANS chemically breaksdown proteins
acidic (pH of 2)
mucus - ANS protects stomach wall from acidity of gastric juices
protease - ANS Enzyme that breaks down proteins
chyme - ANS a semiliquid mass of partially digested food that passes from the stomach into
the small intestine
small intestine - ANS digestive organ in which most chemical digestion takes place
majority of digestion and absorption occur here!!
how long is the SI? - ANS 6 meters
3 @COPYRIGHT 2025/2026.
EXAM 2025/2026 QUESTIONS AND
ANSWERS 100% PASS
Mechanical digestion - ANS Part of digestion that uses movement and muscles to break
down food into smaller pieces
digestion - ANS breaking down nutrients into small, soluble molecules that can be absorbed
into the blood
chemical digestion - ANS the digestion process in which enzymes are used to break foods
into their smaller chemical buiding blocks
occurs via hydrolysis
hydrolysis - ANS A chemical process that lyses, or splits, molecules by the addition of water;
an essential process in digestion.
enzymes - ANS molecules, usually proteins or nucleic acids, that act as catalysts in
biochemical reactions
used in chemical reactions
1 @COPYRIGHT 2025/2026.
,humans digestion tube extends from - ANS mouth to anus
called alimentary canal
anus - ANS A muscular opening at the end of the rectum through which waste material is
eliminated from the body
alimentary canal - ANS Also known as the gastrointestinal (GI) tract of the digestive tract, the
alimentary canal is the long muscular "tube" that includes the mouth esophagus, somatch,
small intesitne, and large intestine.
carries out stages of digestive process (mechanical and chemical digestion and absorb ion)
accessory organs - ANS In the GI tract, organs that play a role in digestion but not directly
part of the alimentary canal.
These include the liver, the gallbladder, the pancreas
what takes place in the mouth? - ANS mechanical digestion
saliva is released from salivary glands to breakdown carbs
salivary glands - ANS three pairs of exocrine glands in the mouth that secrete saliva
saliva - ANS contain amylase
amylase - ANS enzyme in saliva that breaks the chemical bonds in starches
pharynx - ANS muscular tube at the end of the gastrovascular cavity, or throat, that connects
the mouth with the rest of the digestive tract and serves as a passageway for air and food
2 @COPYRIGHT 2025/2026.
, esophagus - ANS muscular tube that moves food from the pharynx to the stomach
epiglottis - ANS The flap of tissue that seals off the windpipe and prevents food from
entering.
what takes place in the stomach? - ANS peristalsis
gastric juices help breakdown proteins
chyme is created
peristalsis - ANS involuntary waves of muscle contraction that keep food moving along in one
direction through the digestive system
gastric juice - ANS chemically breaksdown proteins
acidic (pH of 2)
mucus - ANS protects stomach wall from acidity of gastric juices
protease - ANS Enzyme that breaks down proteins
chyme - ANS a semiliquid mass of partially digested food that passes from the stomach into
the small intestine
small intestine - ANS digestive organ in which most chemical digestion takes place
majority of digestion and absorption occur here!!
how long is the SI? - ANS 6 meters
3 @COPYRIGHT 2025/2026.
