Podcast
Questions and Answers
Which part of the oral cavity contains lingual minor salivary glands?
Which part of the oral cavity contains lingual minor salivary glands?
- Lingual (correct)
- Labial
- Buccal
- Palatal
Where do minor salivary glands open into?
Where do minor salivary glands open into?
- The bone marrow
- The blood vessels
- The lymphatic system
- The mucosal surface (correct)
Which minor salivary glands are located in the submucosal layer?
Which minor salivary glands are located in the submucosal layer?
- Labial
- Lingual
- Palatal
- All of the above (correct)
Which of the following is NOT a location for minor salivary glands?
Which of the following is NOT a location for minor salivary glands?
Which minor salivary glands are located near the teeth?
Which minor salivary glands are located near the teeth?
What is one of the classifications of salivary glands based on size and location?
What is one of the classifications of salivary glands based on size and location?
What is another classification of salivary glands based on size and location?
What is another classification of salivary glands based on size and location?
Salivary glands based on size and location are grouped into how many categories?
Salivary glands based on size and location are grouped into how many categories?
Which term refers to salivary glands classified by their smaller size?
Which term refers to salivary glands classified by their smaller size?
The classification of salivary glands into major and minor categories is based on what criteria?
The classification of salivary glands into major and minor categories is based on what criteria?
Which salivary gland is located outside the oral cavity?
Which salivary gland is located outside the oral cavity?
How do the secretions of the major salivary glands reach the mouth?
How do the secretions of the major salivary glands reach the mouth?
Which of the following is NOT one of the three major salivary glands?
Which of the following is NOT one of the three major salivary glands?
Which gland is NOT involved in the major salivary secretion process?
Which gland is NOT involved in the major salivary secretion process?
Which of the following glands are part of the major salivary glands?
Which of the following glands are part of the major salivary glands?
Which gland is also known as the submaxillary salivary gland?
Which gland is also known as the submaxillary salivary gland?
Which part of the submandibular gland fills the digastric triangle?
Which part of the submandibular gland fills the digastric triangle?
Where is the deep part of the submandibular gland located?
Where is the deep part of the submandibular gland located?
What is the name of the duct that connects the submandibular gland to the floor of the mouth?
What is the name of the duct that connects the submandibular gland to the floor of the mouth?
Which structure is not identified in the diagram of the submandibular gland?
Which structure is not identified in the diagram of the submandibular gland?
What is the smallest of the major salivary glands?
What is the smallest of the major salivary glands?
Where is the sublingual gland located?
Where is the sublingual gland located?
Which gland is shown alongside the sublingual gland in the diagram?
Which gland is shown alongside the sublingual gland in the diagram?
Which muscle is located below the sublingual gland?
Which muscle is located below the sublingual gland?
Which gland is NOT a major salivary gland?
Which gland is NOT a major salivary gland?
What is the largest gland in the body?
What is the largest gland in the body?
Where is the greater part of the liver situated?
Where is the greater part of the liver situated?
What separates the liver from the pleura, lungs, pericardium, and heart?
What separates the liver from the pleura, lungs, pericardium, and heart?
Which side of the body does the liver extend to?
Which side of the body does the liver extend to?
What structure covers the greater part of the liver?
What structure covers the greater part of the liver?
Which surface of the liver faces in the anterior direction?
Which surface of the liver faces in the anterior direction?
Which surface of the liver faces in the inferior direction?
Which surface of the liver faces in the inferior direction?
In which direction does the diaphragmatic surface of the liver NOT face?
In which direction does the diaphragmatic surface of the liver NOT face?
Which surface of the liver is associated with the diaphragm?
Which surface of the liver is associated with the diaphragm?
How many directions does the diaphragmatic surface of the liver cover?
How many directions does the diaphragmatic surface of the liver cover?
What is the weight of the Parotid Gland?
What is the weight of the Parotid Gland?
Which anatomical structure serves as the superior border of the parotid gland?
Which anatomical structure serves as the superior border of the parotid gland?
Where does the superficial portion of the Parotid Gland lie?
Where does the superficial portion of the Parotid Gland lie?
Which duct connects the Parotid Gland to the buccal mucosa adjacent to the maxillary second molar?
Which duct connects the Parotid Gland to the buccal mucosa adjacent to the maxillary second molar?
Which muscle forms the anterior border of the Parotid Gland?
Which muscle forms the anterior border of the Parotid Gland?
Which blood vessel brings oxygenated blood to the liver?
Which blood vessel brings oxygenated blood to the liver?
What percentage of blood is supplied to the liver by the portal vein?
What percentage of blood is supplied to the liver by the portal vein?
What is the primary function of the portal vein in the liver?
What is the primary function of the portal vein in the liver?
Into which structure do the arterial and venous blood get conducted within the liver?
Into which structure do the arterial and venous blood get conducted within the liver?
Where do the right and left hepatic veins drain?
Where do the right and left hepatic veins drain?
Which is the largest lobe of the liver?
Which is the largest lobe of the liver?
Which lobe of the liver is flattened and smaller than the right lobe?
Which lobe of the liver is flattened and smaller than the right lobe?
Where is the caudate lobe of the liver located?
Where is the caudate lobe of the liver located?
Which structure separates the right lobe from the left lobe of the liver?
Which structure separates the right lobe from the left lobe of the liver?
Which lobe of the liver is found between the gallbladder and the fissure for the ligamentum teres hepatis?
Which lobe of the liver is found between the gallbladder and the fissure for the ligamentum teres hepatis?
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Study Notes
Salivary Glands
- Classified into two types based on size and location: major salivary glands and minor salivary glands
Minor Salivary Glands
- Located in various parts of the oral cavity, including:
- Labial
- Lingual
- Palatal
- Buccal
- Glossopalatine
- Retromolar
- Present in the submucosal layer and open onto the mucosal surface through short ductal openings
Major Salivary Glands - Three Pairs
- Parotid gland
- Submandibular gland
- Sublingual gland
- Located outside the oral cavity, with secretion reaching the mouth through the ductal system
Parotid Gland
- Largest major salivary gland
- Weighs about 15 grams
- Superficial portion lies in front of the external ear, with the deeper part filling the retromolar fossa
- Parotid duct (Stenson duct) connects the parotid gland to the buccal mucosa, adjacent to the maxillary second molar
- Anatomical structures associated with the parotid gland include:
- Zygomatic arch (superior border)
- Sternocleidomastoid (posterior border)
- Masseter (anterior border)
- Buccinator
Submandibular Gland
- Second largest salivary gland, also called submaxillary salivary gland
- Divided into superficial and deep parts
- Submandibular duct (Wharton duct) connects the submandibular gland to the floor of the mouth
- Anatomical structures associated with the submandibular gland include:
- Submandibular duct
- Cut edge of mandible
- Mylohyoid muscle
- Deep part of submandibular gland
- Superficial part of submandibular gland
- Posterior belly of digastric muscle
- Digastric triangle
- Anterior belly of digastric muscle
Sublingual Gland
- Smallest of the major salivary glands
- Located between the floor of the mouth, below the mucosa, and above the mylohyoid muscle
Liver
- Largest gland in the body
- Located under the right costal margin, with the right hemidiaphragm separating it from the pleura, lungs, pericardium, and heart
- Extensions include:
- Right Lobe (largest lobe, separated from the left lobe by the fossae for the gallbladder and the inferior vena cava)
- Left Lobe (smaller, flattened lobe)
- Caudate Lobe (positioned between the fissure for the ligamentum venosum and the inferior vena cava)
- Quadrate Lobe (located between the gallbladder and the fissure for the ligamentum teres hepatis)
- Surfaces of the liver include:
- Diaphragmatic surface (in the anterior, superior, and posterior directions)
- Visceral surface (in the inferior direction)
Blood Circulation through the Liver:
- Blood vessels conveying blood to the liver include:
- Hepatic artery (30%)
- Portal vein (70%)
- Hepatic artery brings oxygenated blood to the liver, and the portal vein brings venous blood rich in the products of digestion
- Arterial and venous blood is conducted to the central vein of each liver lobule by the liver sinusoids
- Central veins drain into the right and left hepatic veins, which open directly into the inferior vena cava
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