Term
| what are the muscles of mastication? |
|
Definition
temporalis
masseter (superficial and deep)
medial pterygoid (superficial and deep)
lateral pterygoid (upper and lower) |
|
|
Term
| what is the origin of the temporalis muscle |
|
Definition
| the temporal fossa and fascia |
|
|
Term
| what is the insertion of the temporalis muscle |
|
Definition
| the coronoid process and the anterior border of the mandibular ramus |
|
|
Term
| what is the function of the temporalis |
|
Definition
it elevates the mandible
the posterior 1/3 retrudes the mandible |
|
|
Term
| what is the nerve supply for the temporalis |
|
Definition
| the anterior and posterior deep temporal branches from V3 |
|
|
Term
| what is the origin of the superficial portion of the masseter |
|
Definition
| inferior border of the anterior 2/3 of the zygomatic arch |
|
|
Term
| what is the insertion of the superficial part of the masseter |
|
Definition
the angle of the mandible
the inferior and lateral parts of the ramus |
|
|
Term
| what is the function of the masseter muscle (both portions) |
|
Definition
| elevation of the mandible |
|
|
Term
| what is the nerve supply of both portions of the masseter muscle |
|
Definition
| masseteric branch from V3 |
|
|
Term
| what is the origin of the deep head of the masseter muscle |
|
Definition
| medial border of the zygomatic arch |
|
|
Term
| what is the insertion of the deep head of the masseter muscle |
|
Definition
|
|
Term
| which head of the masseter is larger? |
|
Definition
| the superficial head is larger than the deep head |
|
|
Term
| what is the origin of the medial pterygoid muscle |
|
Definition
| medial surface of lateral pterygoid plate? |
|
|
Term
| what is the insertion point of of the medial pterygoid |
|
Definition
|
|
Term
| what is the action of the medial pterygoid muscle |
|
Definition
elevate the mandible
protrude mandible
lateral excursion of the mandible |
|
|
Term
| what is the innervation of the medial pterygoid muscle |
|
Definition
| medial pterygoid branch from V3 |
|
|
Term
| which muscle is the deepest muscle of mastication |
|
Definition
|
|
Term
| what is the origin of the upper head of the lateral pterygoid muscle |
|
Definition
|
|
Term
| what is the insertion point for the upper head of the lateral pterygoid muscle |
|
Definition
|
|
Term
| what is the origin of the lower head of the pterygoid muscle |
|
Definition
| lateral surface of the lateral pterygoid plate |
|
|
Term
| what is the insertion point of the lower head of the lateral pterygoid muscle |
|
Definition
|
|
Term
| what is the action of the lateral pterygoid plate? |
|
Definition
depress and protrude the mandible
pull the articulator disc forward |
|
|
Term
| what innervates the lateral pterygoid muscle |
|
Definition
| the lateral pterygoid branch for each head from V3 |
|
|
Term
| what part of the maxillary artery innervates the muscles of mastication? |
|
Definition
| the 2nd part: the pterygoid part. |
|
|
Term
| what are the branches of the pterygoid part of V2 |
|
Definition
anterior deep temporal
posterior deep temporal
masseteric
pterygoid branches
buccal branches |
|
|
Term
| what artery supplies the temporal muscle |
|
Definition
| the anteriro and posterior deep temporal arteries |
|
|
Term
| what artery supplies the deep surface of the masseter msucle |
|
Definition
|
|
Term
| what artery supplies the medial and lateral pterygoid muscles |
|
Definition
| the pterygoid branch arteries |
|
|
Term
| what artery supplies the buccinator |
|
Definition
|
|
Term
| what artery passes deep into the temporalis fascia an temporalis muscle? |
|
Definition
| the middle temporal artery arising from the superficial artery |
|
|
Term
| what artery supplies the parotid gland, duct, and masseter as it passes them? |
|
Definition
| the transverse facial artery arising from the superficial temporal artery |
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