Rio Bio 202 Exam 3 || with Perfect Answers.
alimentary organs (descending order) correct answers mouth, pharynx, esophagus, stomach,
small intestine, large intestine
accessory organs correct answers teeth, tongue, salivary glands, gallbladder, liver, pancreas
length of alimentary canal correct answers 30 feet in cadaver, shorter in living human because of
muscle tone
number of adult teeth correct answers 32
number of deciduous (baby) teeth correct answers 20
types of teeth correct answers molar, premolar, canine, incisors.
hardest substance in the body correct answers dentin
produce dentin correct answers odontoblasts
three types of salivary glands correct answers parotid glands, submandibular glands, sublingual
glands
parotid gland secretion correct answers primarily serous fluid (salivary amylase)
submandibular gland secretion correct answers mix of mucin and serous fluid
sublingual gland secretion correct answers primarily mucin
mucin function correct answers bind and moisten food into a bolus
serous fluid/salivary amylase function correct answers starts digestion of starches
liver digestive function correct answers produces bile, which emulsifies fats in the duodenum
bile function correct answers emulsifies fats creating a larger surface area and allowing
absorption
gallbladder function correct answers holds and releases bile into the digestive tract when fatty
foods enter the duodenum.
jaundice correct answers yellowing of the body tissues due to bile in the blood stream
kupffer cells correct answers special phagocytic cells that line liver sinusoids and remove debris
from blood.
, hepatocytes correct answers liver cells that absorb nutrients and oxygen, make bile.
flow of blood vs bile in liver correct answers opposite directions
pancreas function correct answers secretes ALKALINE fluid with hydrolytic enzymes into the
duodenum.
function of bicarbonate ion in pacreas correct answers neutralizes acidic chyme entering the
duodenum, creating optimal pH for intestinal enzymes.
optimal stomach pH correct answers very acidic
optimal small intestine pH correct answers slightly alkaline
pharynx structure correct answers outer circular and inner longitudinal muscle layers, friction
resistant mucosa (stratified squamous epithelium)
esophagus function correct answers simply a passageway that used peristaltic motions to move
food to the stomach. no digestion or absorption.
esophagus structure correct answers 25 cm long, superiorly skeletal muscle, and then smooth
muscle. ends at the gastroesophageal sphincter
regions of the stomach (superior to inferior) correct answers cardiac, fundus, body, pyloric.
sphincter between stomach and small intestine correct answers pyloric sphincter
stomach's concave surface correct answers lesser curvature
stomach's convex surface correct answers greater curvature
stomach function correct answers temporary storage, area for mechanical and chemical
breakdown, creates chyme.
stomach structure correct answers third, obliquely oriented layer in the muscularis externa that
allows churning. glands secrete HCl and enzymes to breakdown food.
digestion location in the stomach correct answers pyloric region
enzyme that digests protein in the stomach correct answers pepsinogen
how does the stomach not digest itself? correct answers it secretes a viscous mucous from
mucosal glands
small intestine structure correct answers begins as the duodenum (10 inches), then the jejunum (8
feet), and then the ileum (12 feet). it has brush border enzymes for digestion.
alimentary organs (descending order) correct answers mouth, pharynx, esophagus, stomach,
small intestine, large intestine
accessory organs correct answers teeth, tongue, salivary glands, gallbladder, liver, pancreas
length of alimentary canal correct answers 30 feet in cadaver, shorter in living human because of
muscle tone
number of adult teeth correct answers 32
number of deciduous (baby) teeth correct answers 20
types of teeth correct answers molar, premolar, canine, incisors.
hardest substance in the body correct answers dentin
produce dentin correct answers odontoblasts
three types of salivary glands correct answers parotid glands, submandibular glands, sublingual
glands
parotid gland secretion correct answers primarily serous fluid (salivary amylase)
submandibular gland secretion correct answers mix of mucin and serous fluid
sublingual gland secretion correct answers primarily mucin
mucin function correct answers bind and moisten food into a bolus
serous fluid/salivary amylase function correct answers starts digestion of starches
liver digestive function correct answers produces bile, which emulsifies fats in the duodenum
bile function correct answers emulsifies fats creating a larger surface area and allowing
absorption
gallbladder function correct answers holds and releases bile into the digestive tract when fatty
foods enter the duodenum.
jaundice correct answers yellowing of the body tissues due to bile in the blood stream
kupffer cells correct answers special phagocytic cells that line liver sinusoids and remove debris
from blood.
, hepatocytes correct answers liver cells that absorb nutrients and oxygen, make bile.
flow of blood vs bile in liver correct answers opposite directions
pancreas function correct answers secretes ALKALINE fluid with hydrolytic enzymes into the
duodenum.
function of bicarbonate ion in pacreas correct answers neutralizes acidic chyme entering the
duodenum, creating optimal pH for intestinal enzymes.
optimal stomach pH correct answers very acidic
optimal small intestine pH correct answers slightly alkaline
pharynx structure correct answers outer circular and inner longitudinal muscle layers, friction
resistant mucosa (stratified squamous epithelium)
esophagus function correct answers simply a passageway that used peristaltic motions to move
food to the stomach. no digestion or absorption.
esophagus structure correct answers 25 cm long, superiorly skeletal muscle, and then smooth
muscle. ends at the gastroesophageal sphincter
regions of the stomach (superior to inferior) correct answers cardiac, fundus, body, pyloric.
sphincter between stomach and small intestine correct answers pyloric sphincter
stomach's concave surface correct answers lesser curvature
stomach's convex surface correct answers greater curvature
stomach function correct answers temporary storage, area for mechanical and chemical
breakdown, creates chyme.
stomach structure correct answers third, obliquely oriented layer in the muscularis externa that
allows churning. glands secrete HCl and enzymes to breakdown food.
digestion location in the stomach correct answers pyloric region
enzyme that digests protein in the stomach correct answers pepsinogen
how does the stomach not digest itself? correct answers it secretes a viscous mucous from
mucosal glands
small intestine structure correct answers begins as the duodenum (10 inches), then the jejunum (8
feet), and then the ileum (12 feet). it has brush border enzymes for digestion.
