10 Questions
Which part of the oral cavity is divided into two parts by the upper and lower dental arches?
The mouth cavity proper
Which part of the gastrointestinal tract is responsible for modifying the sound produced in the larynx?
The oral cavity
What is the anatomical location of the pharynx?
Inferior to the skull base
How many muscles primarily make up the pharynx?
Six
What are the three major functions of the oral cavity?
Digestion, communication, and breathing
Which part of the gastrointestinal tract is responsible for receiving food and preparing it for digestion in the stomach and small intestine?
Oral cavity
What is the function of the vestibule in the oral cavity?
None of the above
What is the anatomical location of the oropharyngeal isthmus?
Posterior to the vertebral column
How many muscles primarily make up the pharynx?
Six
What is the function of the pharynx in addition to being a part of the gastrointestinal tract?
Breathing
Study Notes
Oral Cavity
- The oral cavity is divided into two parts by the upper and lower dental arches.
Pharynx
- The pharynx is located behind the oral and nasal cavities and above the esophagus.
- It is responsible for modifying the sound produced in the larynx.
- The pharynx has four main muscles and is also made up of several other muscles, primarily totaling around 20-25 muscles.
- In addition to being a part of the gastrointestinal tract, the pharynx also plays a role in the respiratory system.
Functions of the Oral Cavity
- The three major functions of the oral cavity are: receiving food and preparing it for digestion, aiding in the process of speech, and facilitating the sensation of taste.
Vestibule
- The vestibule is a part of the oral cavity located between the teeth and lips, and is responsible for directing food and drink towards the oral cavity.
Oropharyngeal Isthmus
- The oropharyngeal isthmus is located at the border between the oral cavity and the pharynx.
Test your knowledge of the anatomy of the gastrointestinal tract with this quiz by Prof. Hoda Abdel-Aziz. Learn about the structure of the oral cavity and its divisions, including the upper and lower dental arches. This quiz will help you understand the basics of the start of the alimentary canal.
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