Podcast
Questions and Answers
What is the action of the mylohyoid muscle?
What is the action of the mylohyoid muscle?
- Depresses the tongue (correct)
- Elevates the hyoid bone
- Elevates the tongue
- Depresses the mandible
Where does the mylohyoid muscle originate?
Where does the mylohyoid muscle originate?
- The hyoid bone
- The styloid process
- The mylohyoid line of the mandible (correct)
- The temporal bone
What is the shape of the mylohyoid muscle?
What is the shape of the mylohyoid muscle?
- Rectangular
- Circular
- Spindle-shaped
- Triangular (correct)
Which of the following is NOT a function of the mylohyoid muscle?
Which of the following is NOT a function of the mylohyoid muscle?
Which muscle is responsible for elevating the hyoid bone, as mentioned in the provided content?
Which muscle is responsible for elevating the hyoid bone, as mentioned in the provided content?
What is the action of the genioglossus muscle?
What is the action of the genioglossus muscle?
Where does the genioglossus muscle originate from?
Where does the genioglossus muscle originate from?
What is the relationship between the origin of the genioglossus muscle and the symphysis menti of the mandible?
What is the relationship between the origin of the genioglossus muscle and the symphysis menti of the mandible?
Which of the following is NOT an action of the genioglossus muscle?
Which of the following is NOT an action of the genioglossus muscle?
What is the anatomical feature from which the genioglossus muscle originates?
What is the anatomical feature from which the genioglossus muscle originates?
Which structure is located anteriorly to the deep part of the gland?
Which structure is located anteriorly to the deep part of the gland?
What structure is NOT located posteriorly to the deep part of the gland?
What structure is NOT located posteriorly to the deep part of the gland?
Which of the following structures are located posteriorly to the deep part of the gland?
Which of the following structures are located posteriorly to the deep part of the gland?
What is the relationship between the deep part of the gland and the stylohyoid?
What is the relationship between the deep part of the gland and the stylohyoid?
What is the relationship between the deep part of the gland and the parotid gland?
What is the relationship between the deep part of the gland and the parotid gland?
Which muscles are located medially?
Which muscles are located medially?
What forms the lateral boundary of the gland?
What forms the lateral boundary of the gland?
Which muscle is not a lateral boundary of the gland?
Which muscle is not a lateral boundary of the gland?
Which structure is not a muscle?
Which structure is not a muscle?
How many muscles form the medial boundary of the gland?
How many muscles form the medial boundary of the gland?
What shape is the muscle described in the content?
What shape is the muscle described in the content?
Where does the muscle enter to perform its function?
Where does the muscle enter to perform its function?
What muscle does this muscle run deep to?
What muscle does this muscle run deep to?
What happens to the muscle's fibers at the end of its insertion?
What happens to the muscle's fibers at the end of its insertion?
What is the orientation of the muscle as it runs upward?
What is the orientation of the muscle as it runs upward?
Study Notes
Muscles of the Tongue
- Mylohyoid Muscle
- Origin: Arises from the whole length of the mylohyoid line of the mandible
- Insertion: Runs upward deep to the mylohyoid muscle to enter the side of the tongue
- Action: Elevates the hyoid bone and draws it forward; or depresses the mandible
Genioglossus Muscle
- Origin: From the superior mental spine behind the symphysis menti of the mandible
- Relations:
- Anteriorly: Sublingual gland
- Posteriorly: Stylohyoid, posterior belly of the digastric, and parotid gland
- Medially: Hyoglossus and styloglossus
- Laterally: Mylohyoid muscle and superficial part of the gland
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Description
Explore the muscles of the tongue, including the mylohyoid muscle and genioglossus muscle, and learn about their origins, insertions, and actions.
