digestive Flashcards
- Which organ is not part of the gastrointestinal tract?
A. Esophagus
B. Large intestine
C. Stomach
D. Oral cavity
E. Liver
E. Liver
- Organize the items listed into the proper sequence of events for gas exchange.
a: O2 is transported to cells by circulatory system
b: O2 is drawn into the lungs during inhalation
c: Cells use O2 and generate CO2
d: CO2 is exhaled
e: The circulatory system transports CO2 to the lungs
A. a, b, c, d, e
B. b, a, c, d, e
C. b, a, c, e, d
D. c, e, d, a, b
E. e, d, c, b, a
C. b, a, c, e, d
- What is mastication?
A. Taking food into the mouth
B. Chewing and mixing food with saliva
C. Secretion of mucus
D. Swallowing
E. Rhythmic alternate contraction of muscle layers
B. Chewing and mixing food with saliva
- Which is not a function of the digestive system?
A. Absorption
B. Ingestion
C. Secretion
D. Micturition
E. Defecation
D. Micturition
- Peristalsis
A. is under voluntary control.
B. involves the opening and closing of muscular sphincters.
C. involves back-and-forth movement for mixing.
D. is a wave of muscular contraction.
E. All of the choices are correct.
D. is a wave of muscular contraction.
- Churning movements called mixing take place in the
A. small intestine.
B. gall bladder.
C. esophagus.
D. large intestine.
E. rectum.
A. small intestine.
- The initial site of both mechanical and chemical digestion is the
A. stomach.
B. small intestine.
C. esophagus.
D. oral cavity.
E. pharynx.
D. oral cavity.
- Which term describes the opening from the oral cavity to the oropharynx?
A. Fauces
B. Choana
C. Conchae
D. Fossae
E. Glossus
A. Fauces
- Where are the transverse palatine folds located?
A. Soft palate
B. Glossopalatine arch
C. Hard palate
D. Pharyngopalatine arch
E. Labial frenulum
C. Hard palate
- Which term is not correctly paired with an alternate name?
A. Oral cavity - mouth
B. Transverse palatine folds - friction ridges
C. Lips - labia
D. Gums - gingivae
E. Uvula - soft palate
E. Uvula - soft palate
- Which bones form the hard palate?
A. Palatine bones
B. Maxillae and inferior nasal conchae
C. Ethmoid and sphenoid bones
D. Palatine bones and maxillae
E. Maxillae and sphenoid
D. Palatine bones and maxillae
- What type of epithelium lines the majority of the oral cavity?
A. Keratinized stratified squamous
B. Nonkeratinized stratified squamous
C. Pseudostratified ciliated columnar
D. Keratinized stratified cuboidal
E. Nonkeratinized stratified cuboidal
B. Nonkeratinized stratified squamous
- During mastication, the tongue is limited in its movement by its attachment to the
A. hard palate.
B. uvula.
C. lingual frenulum.
D. fauces.
E. soft palate.
C. lingual frenulum.
- The projections on the superior surface of the tongue, some of which house taste buds, are the
A. tonsils.
B. cilia.
C. rugae.
D. glossal spines.
E. papillae.
E. papillae.
- Which is not correct regarding saliva?
A. Its pH is slightly alkaline.
B. Daily production is 1-11⁄2 liters.
C. It contains antibodies and an antibacterial enzyme.
D. The majority of its volume is water.
E. It contains mucus to aid in swallowing.
A. Its pH is slightly alkaline.
- Late one night, while studying for your anatomy class, you open a box of saltine crackers to do a little
snacking. After chewing on a starchy morsel for a few minutes, you begin to notice a sweet taste in your
mouth. What accounts for this?
A. “Sweet” taste receptors are slower to respond than others.
B. Activity of bacteria in the mouth lowers the pH.
C. Esophageal reflux
D. Salivary amylase activity
E. Phagocytosis by the pharyngeal tonsils produces by-products that taste sweet.
D. Salivary amylase activity
- Digestion of carbohydrates begins in the
A. stomach.
B. small intestine.
C. oral cavity.
D. large intestine.
E. liver.
C. oral cavity.
- Which salivary gland empties into the oral vestibule at the level of the second upper molar?
A. Parotid
B. Maxillary
C. Submandibular
D. Sublingual
E. Palatine
A. Parotid
- Which salivary glands produce the largest volume of saliva?
A. Submandibular
B. Parotid
C. Palatine
D. Sublingual
E. Maxillary
A. Submandibular
- Which cranial nerves innervate the salivary glands?
A. V and VII
B. XI and XII
C. VII and IX
D. VI and IX
E. V and XI
C. VII and IX
- Which is not correct regarding teeth?
A. The primary component of teeth is dentin.
B. The outer surface of enamel forms the crown of a tooth.
C. The central portion of a tooth is the sinus cavity.
D. The root is covered by cementum.
E. The apical foramen is the opening at the tip of the root.
C. The central portion of a tooth is the sinus cavity.
- The term “canines” describes the teeth that
A. are most anterior, used for slicing and cutting.
B. are lateral to the incisors, used for puncturing and tearing.
C. bear dental cusps for cutting and grinding.
D. are only found as permanent teeth.
E. are only found in dogs.
B. are lateral to the incisors, used for puncturing and tearing.
- The central cavity of a tooth is filled with
A. cementum.
B. dentin.
C. pulp.
D. enamel.
E. calcium phosphate.
C. pulp.
- Which statement about teeth is not correct?
A. There are 32 permanent teeth.
B. Two sets of teeth develop during an individual’s lifetime.
C. The premolars and molars have dental cusps for crushing and grinding.
D. There are four pairs of incisors, used for cutting and slicing.
E. The canines are cone-shaped, and each has two roots.
E. The canines are cone-shaped, and each has two roots.
- Which of the pharyngeal regions serve as part of the digestive passageway?
A. Nasopharynx and oropharynx
B. Oropharynx and laryngopharynx
C. Oropharynx
D. Nasopharynx, oropharynx, and laryngopharynx
E. Laryngopharynx
B. Oropharynx and laryngopharynx
- Which is not a fold of peritoneum that forms a mesentery?
A. Lesser omentum
B. Falciform ligament
C. Mesentery proper
D. Mesocolon
E. Intraperitoneal ligament
E. Intraperitoneal ligament
- The term “retroperitoneal” may be used to describe the location of certain abdominal organs. This
means that such organs are located
A. between the visceral and parietal layers of the peritoneum.
B. posterior to the parietal peritoneum.
C. in the peritoneal cavity.
D. between folds of the parietal peritoneum.
E. deep to the visceral peritoneum.
B. posterior to the parietal peritoneum.
- Which peritoneal fold supports the large intestine?
A. Greater omentum
B. Lesser omentum
C. Falciform ligament
D. Mesocolon
E. Peritoneal ligament
D. Mesocolon
- Which peritoneal fold attaches the liver to the anterior internal body wall?
A. Coronary ligament
B. Falciform ligament
C. Mesentery proper
D. Intraperitoneal ligament
E. Hepatic ligament
B. Falciform ligament
- Which organ is retroperitoneal?
A. Stomach
B. Jejunum
C. Transverse colon
D. Pancreas
E. Cecum
D. Pancreas