Muscles of the Head & Neck Part 2

Which of the following labels are the pharyngeal constrictors? Indicate by letters, the superior, middle and inferior pharyngeal constrictors respectively.
*Pharyngeal constrictors help with forcing the food into the esophagus, an involuntary process.

• A, B, & C
• A, B, & D
• A, D, & E
• A, D, & F

True or False?
Pharyngeal constrictors make up the outer layer aka as the circular layer. 

• True
• False

Which of the following muscles of the throat make up the inner layer (aka longitudinal muscles)?
*Hint: These would also be classified as the assisting muscles.
1. Superior Pharyngeal
2. Stylopharyngeus
3. Palatopharngeus
4. Middle Pharyngeal
5. Inferior Pharyngeal

• 2 & 3 only
• 1, 4, & 5
• 1, 2, & 3
• 1 & 3 only

Which of the following muscles of the throat are NOT innervated via the vagus nerve (i.e. innervated via the glossopharyngeal nerve)? 
1. Superior Pharyngeal
2. Stylopharyngeus
3. Palatopharngeus
4. Middle Pharyngeal
5. Inferior Pharyngeal

• 4 only
• 1, 3, 4, & 5
• 1, 2, & 3
• 2 only

Which of the following muscles of the throat are innervated via the vagus nerve (i.e. NOT innervated by the glossopharyngeal nerve)? 
1. Superior Pharyngeal
2. Stylopharyngeus
3. Palatopharngeus
4. Middle Pharyngeal
5. Inferior Pharyngeal

• 4 only
• 1, 3, 4, & 5
• 1, 2, & 3
• 2 only

True or False?
When we ingest food the throat muscles help with closing of the nasopharynx so food does not travel into the respiratory system. This makes sense since the nasopharynx and the oral pharynx are connected.

• True 
• False

When swallowing, the throat muscles open this tube. This tube allows the pressure in the middle ear to equalize with the pressure of the nasal pharynx which is atmospheric pressure. Which of the following correspond to this tube? 

• Auditory Tube
• Eustachian Tube
• Two of the above
• Internal Auditory Metis

In the model illustrated, which of the following are the suprahyoid muscles? These muscles are responsible for raising the larynx or depressing the mandible.
*There are more suprahyoid muscles, but in relation to this image which are the ones that are labelled?

• A, B, & H
• A, B, & C
• D, G, & H
• None of the above

Label the Geniohyoid, Mylohyoid, & the anterior belly of the Digastric respectively.

• A, B, & H
• A, B, & C
• D, G, & H
• None of the above

Label the Thyrohyoid, Sternohyoid, & the superior belly of the Omohyoid respectively.
* These are some examples of the infrahyoid muscles which help depress the larynx during swallowing and speaking.

• A, B, & H
• A, B, & C
• D, G, & H
• F, G, & H