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WorksheetsKIN 1AA3 TEST 5 W2024
Total questions: 28
Worksheet time: 15mins
Which of the following is false about the layers of the GI tract?
The myenteric plexus is located between the circular muscle and the submucosa
The upper/middle esophagus contains skeletal muscle in the muscularis layer
The serosa is the outermost layer of the esophagus
The serosa layer is considered to be the visceral peritoneum of the GI tract
Two of the above
Which of the following peritoneal folds is correctly matched?
Mesocolon - transverse colon to anterior abdominal wall
Greater omentum - stomach to transverse colon
Lesser omentum - stomach to pancreas
Falciform ligament - liver to superior portion of the diaphragm
Which of the following is false about the oral cavity?
Molars have 4 cusps while premolars have 2 cusps
Babies who are born tongue-tied have a shortened labial frenulum
The gingiva lines the alveolar process of the maxilla and mandible
The oral vestibule defines the space outside the oral proper
Select the true statement about the extrinsic muscles of the tongue.
The extrinsic muscles insert onto bony features and have their origin at the tongue
The extrinsic muscles are involved in manipulating the shape of the tongue
The hyoglossus elevates the back of the tongue when contracted
The genioglossus controls anterior movement of the tongue
Select the areas of the tooth that contain enamel.
Crown
Neck
Root
All of the above
Which of the following glands is correctly matched with the location of its duct?
Sublingual: roof of the mouth
Submandibular: region near the lingual frenulum
Parotid gland: region of the second premolar
All of the above are correctly matched
Which of the following is not associated with increased salivation?
Stimulation of cranial nerve VII
Cerebral cortex mediated salivation in response to memories of food
Stimulation of cranial nerve X
Parasympathetic stimulation
Which of the following enzymes is deactivated once it reaches the stomach?
Salivary amylase
Lingual lipase
Gastric lipase
Pepsin
Which of the following is false about the histology of the esophagus?
The mucosa is lined with stratified squamous epithelial cells
At the terminal end, there are more mucous glands
The middle region contains both skeletal and smooth muscle
The adventitia is the outermost layer and consists of adipose connective tissue
Which of the following events is not included in the involuntary stages of deglutition?
The bolus enters the esophagus
The soft palate is lifted to block off the nasopharynx
The bolus is pushed into the oropharynx
Sensory nerves send signals to the deglutition center in the medulla oblongata + pons
What is the term for the alternating contraction of circular and longitudinal muscles that occurs to push the bolus along the GI tract? (1 word)
(a)
What is the most superior region of the stomach?
Body
Fundus
Cardia
Pyloric
What is the name of the opening from the stomach into the small intestine?
Pyloric sphincter
Pyloric canal
Pyloric antrum
Pylorus
Which of the following is false about the anatomy of the stomach?
The greater curvature of the stomach is the location of the origin of the lesser omentum
The rugae of the mucosa allow for the expansion of the stomach
The longitudinal muscle layer is the most superficial of the 3 muscle layers
Bolus can remain in the fundus region for up to 1 hour
Choose the stomach cell that is incorrectly matched with the substance it secretes.
Mucous cell - mucus
Parietal cell - intrinsic factor
G cell - gastrin hormone
Chief cells - pepsinogen and lingual lipase
Select the correct sequence of steps for the digestive process. (not all steps are included)
Motility -> secretion
Digestion -> motility
Secretion -> digestion
Absorption -> digestion
Select the true statement:
Carbonic acid quickly disassociates into bicarbonate ions and hydrogen ions
Haldane effect decreases affinity for CO2 when oxygen has been released from Hgb
In internal respiration, Cl- is shifted out of the RBC
CO2 has one possible pathway in internal respiration
What is the percentage of CO2 transported by carbaminohemoglobin?
7%
70%
8%
23%
Where can blood vessels be found in the layers of the GI tract? Select all that apply.
Mucosa
Submucosa
Muscularis
Serosa
Where can lymphatic tissue be found in the layers of the GI tract? Select all that apply.
Mucosa
Submucosa
Muscularis
Serosa
Select the true statement:
In external respiration, water is added to carbonic acid using carbonic anhydrase
In external respiration, H+ leaving Hgb increases affinity for O2 and decreases affinity for CO2
In external respiration, the CO2 unbinded from Hgb lingers in the RBC
Which of the following is true about the myenteric plexus?
It is a network of nerves found between the submucosa and circular muscle layers
The motor portion stimulates mucosal secretions into the lumen of GI tract
It acts independently of the CNS
It is considered part of the somatic nervous system
Which of the following is false about the muscularis mucosae?
It creates folds in the GI tract to increase surface area
It is found in the muscularis layer of the GI tract
It's a thin layer of smooth muscle
It is superficial to the lamina propria
What prevents over inflation of the lungs?
Receptors for touch, temperature and pain stimuli
Proprioceptors in the lung tissue
Hering-Breuer reflex
Medullary chemoreceptors
What plays a role in switching between inhalation and exhalation and may help in modifying basic rhythm of breathing by stimulating the dorsal respiratory group?
Pontine respiratory group
Pre-Botzinger complex
Medulla Oblongata
Intercostal nerves
select the ways in which is CO2 transported.
bicarbonate ions
electron transport chain
carbaminohemoglobin
dissolved
what is the function of the pre-botzinger complex?
pacemaker for rhythmic patterns
forceful breathing
quiet breathing
altering rhythmic breathing patterns
If agglutination only occurs when Anti-A antibodies are added, what type of blood does this individual most likely have?
Type B
Type O
Type A
Type AB
