BIO 201L LAB 13 THE RESPIRATORY
SYSTEM ACTUAL QUESTIONS AND
CORRECT ANSWERS COMPLETE ANATOMY
AND PHYSIOLOGY STUDY GUIDE
●● chemical digestion
Answer: Breaks food into simpler chemicals.
●● Layers of Alimentary Canal
Answer: mucosa
submucosa
muscularis externa
serosa
●● mucosa
Answer: Innermost layer of the alimentary canal; made up of epithelium,
connective tissue & smooth muscle; functions in protection, secretion, &
absorption.
●● submucosa
Answer: The layer of the alimentary canal directly under the mucosa;
made up of loose connective tissue, blood vessels, lympathic vessels, &
nerves; nourishes surrounding tissues, transports absorbed materials
,●● muscularis externa
Answer: The third layer of the alimentary canal; Made up of smooth
muscle cells in circular & longitudinal groups; functions in movements
of the tube & its contents.
●● serosa
Answer: The outer covering of the alimentary canal; made up of
epithelium, connective tissue; functions in protection & lubrication
●● oral cavity
Answer: Includes a chamber between the palate & tongue that is
surrounded by the lips, cheeks, tongue, & palate.
●● teeth
Answer: LOCATION: In sockets of mandible & maxillae
FUNCTION: Break food particles into smaller pieces; help mix food
with saliva during chewing
●● tongue
Answer: LOCATION: Floor of mouth
, FUNCTION: Mixes food with saliva; moves food toward pharynx;
contains taste receptors
●● salivary glands
Answer: Glands of the mouth that produce saliva, a digestive secretion.
●● saliva
Answer: A fluid in the mouth that helps digest food
●● parotid gland
Answer: Largest of the major salivary glands
LOCATION: Anterior to & somewhat inferior to the ears between the
skin of the cheeks & the masseter muscles
DUCT: Pass through the buccinator muscles & enter the mouth opposite
the upper second molars
SECRETION: Clear, watery serous fluid, rich in salivary amylase
●● submandibular glands
Answer: LOCATION: In the floor of the mouth on the inside surface of
the mandible
DUCT: Ducts open inferior to the tongue near the frenulum
SECRETION: Some serous fluid with some mucus; more viscous than
parotid secretion
SYSTEM ACTUAL QUESTIONS AND
CORRECT ANSWERS COMPLETE ANATOMY
AND PHYSIOLOGY STUDY GUIDE
●● chemical digestion
Answer: Breaks food into simpler chemicals.
●● Layers of Alimentary Canal
Answer: mucosa
submucosa
muscularis externa
serosa
●● mucosa
Answer: Innermost layer of the alimentary canal; made up of epithelium,
connective tissue & smooth muscle; functions in protection, secretion, &
absorption.
●● submucosa
Answer: The layer of the alimentary canal directly under the mucosa;
made up of loose connective tissue, blood vessels, lympathic vessels, &
nerves; nourishes surrounding tissues, transports absorbed materials
,●● muscularis externa
Answer: The third layer of the alimentary canal; Made up of smooth
muscle cells in circular & longitudinal groups; functions in movements
of the tube & its contents.
●● serosa
Answer: The outer covering of the alimentary canal; made up of
epithelium, connective tissue; functions in protection & lubrication
●● oral cavity
Answer: Includes a chamber between the palate & tongue that is
surrounded by the lips, cheeks, tongue, & palate.
●● teeth
Answer: LOCATION: In sockets of mandible & maxillae
FUNCTION: Break food particles into smaller pieces; help mix food
with saliva during chewing
●● tongue
Answer: LOCATION: Floor of mouth
, FUNCTION: Mixes food with saliva; moves food toward pharynx;
contains taste receptors
●● salivary glands
Answer: Glands of the mouth that produce saliva, a digestive secretion.
●● saliva
Answer: A fluid in the mouth that helps digest food
●● parotid gland
Answer: Largest of the major salivary glands
LOCATION: Anterior to & somewhat inferior to the ears between the
skin of the cheeks & the masseter muscles
DUCT: Pass through the buccinator muscles & enter the mouth opposite
the upper second molars
SECRETION: Clear, watery serous fluid, rich in salivary amylase
●● submandibular glands
Answer: LOCATION: In the floor of the mouth on the inside surface of
the mandible
DUCT: Ducts open inferior to the tongue near the frenulum
SECRETION: Some serous fluid with some mucus; more viscous than
parotid secretion
