Chapter 15 Pt. 1 (Final Exam Pt. 9) Flashcards
Which digestive organ is this:
receives food
mouth
Which digestive organ is this:
contains teeth and tongue
mouth
Which digestive organ is this:
tongue manipulates food and monitors quality
mouth
Which digestive organ is this:
passageway for both food and air
Pharynx
Which digestive organ is this:
tube that transports food from mouth to stomach
Esophagus
Which digestive organ is this:
J-shaped muscular sac for food storage
Stomach
Which digestive organ is this:
long tube where digestion is completed and nutrients are absorbed
Small Intestine
Which digestive organ is this:
final tubular region of GI tract
Large Intestine
Which digestive organ is this:
absorbs water and ions
Large Intestine
Which digestive organ is this:
houses bacteria
Large Intestine
Which digestive organ is this:
forms and expels feces
Large Intestine
Which digestive organ is this:
terminal outlet of digestive tract
Anus
Which digestive organs use mechanical digestion?
mouth
stomach
small intestine
Which digestive organs use chemical digestion?
mouth
stomach
small intestine
large intestine
The digestive system is also called the ____________ (___) ______.
gastrointestinal (GI) tract
What is lumen?
the hollow area of the tube through which food and fluids travel
What are the 4 layers of the GI tract?
(1) mucosa
(2) submucosa
vessels, and nerves
(3) muscularis
(4) serosa
Which layer of the GI tract is this:
the innermost layer of the GI tract
mucosa
Which layer of the GI tract is this:
moist, mucus-secreting layer
mucosa
Which layer of the GI tract is this:
lubricates and protects the GI tract
mucosa
Which layer of the GI tract is this:
consists of connective tissue containing blood vessels, lymph vessels, and nerves
submucosa
Which layer of the GI tract is this:
responsible for movement of materials through the GI tract and for mixing ingested materials with digestive secretions
muscularis
Which layer of the GI tract is this:
2 layers of smooth muscle (one circular and one longitudinal)
muscularis
Which layer of the GI tract is this:
a thin layer of epithelial tissue supported by connective tissue that wraps around the GI tract
serosa
Which layer of the GI tract is this:
lubricates the outside of the GI tract
serosa
What are the accessory structures of the digestive system?
salivary glands
liver
gallbladder
pancreas
The ___________ releases bile into the small intestine
gallbladder
What are the functions of the mouth?
(1) it begins mechanical and chemical digestion
(2) it monitors food quality
(3) it moistens and manipulates food so that it can be swallowed
What are the different types of teeth?
Incisors
Canines
Premolars & Molars
What do Incisors do?
in front of mouth
slice the food
What do Canines do?
tear the food
What do Premolars & Molars do?
ground, crushed, and pulverized food
True or False: teeth are alive
true
What is dentin?
bonelike structure that surrounds the pulp
Where is the pulp located on the teeth?
in the middle and contains blood vessels and nerves
What is a crown?
the part of the tooth visible above the gum line
The crown of a tooth is covered with _________
enamel
The root of a tooth is covered with _________
cementum
What is enamel?
a nonliving material hardened with calcium salts
What is cementum?
a calcified, yet living and sensitive connective tissue
What is plaque?
an invisible film of bacteria, mucus, and food particles
What is gingivitis?
an early stage of gum disease; occurs when plaque that has formed along the gum line causes the gum to become inflamed and swollen
What is periodontitis?
the bacteria in the plaque can then attack the bone and soft tissues around the tooth
