Fisk- Swallowing Word Scramble
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Question | Answer |
Movements of mastication | 1.Depression (Lateral Pterygoid M, infrahyoid muscles, digastric M). 2.Elevation (temporalis, masseter, and medial pterygoid). 3.Protraction (lateral pterygoid acting on articular disc). 4.Retraction (posterior temporalis fibers) |
Movements of Grinding (mastication) | Lateral grinders: Masseter and temporalis. Medial grinders: Medial and Lateral Pterygoids. **done by the 2 pre-molars and 3 molars |
What teeth are specifically for biting off food? | Spatula teeth. **NOT used for chewing |
What type of joint is the TMJ | Hinge synovial Joint with an articular disc. |
What are the two connections onto the Articular Disc? | 1.Lateral pterygoid M. 2.Elastic Ligament (connects it posteriorly) |
What happens to the condyle of the mandible during chewing. | It is moved out of the mandibular fossa. **Damage to the lateral pterygoid or the elastic ligament can cause the TMJ from functioning properly and lead to pain. |
Which gland's secretions are more for digestion? lubrication? | Digest: Submandibular. Lube: Parotid |
Where did the tongue arise from? | Occipital somites |
What are the 2 main muscles that retract the tongue? | 1.Styloglossus M. 2.Hyoglossus M. |
2 main functions of the tongue in swallowing? | 1.forming food into a bolus. 2.Pressing food against hard palate to force it into back of mouth. |
What action closes the larynx? | Raising it (thyrohyoid, pharyngeal constrictors) |
What is the main function of Cricopharyngeus m? | To keep air out of the stomach, must relax during swallowing. |
Steps of Swallowing | 1.Form bolus (tongue). 2.Move to oropharynx (tongue & styloglossus). 3.Close nasopharynx (LVP, TVP). 4.Close larynx (suprahyoid muscles). 5.Push down food (pharyngeal constrictors. RELAX cricopharyngeus) |
Created by:
WeeG
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