The masseter muscle has a superficial and deep head.

1. Its origin is the _________.

2. One insertion site for the masseter is the angle of the mandible (superficial head). The other insertion is the ________ (deep head).

Select the actions of the masseter muscle.

1. The origin of the temporalis muscle is the _________.

2. The insertion of the temporalis muscle is the _________.

Select the actions of the temporalis muscle.

The medial pterygoid muscle has a superficial and deep head. Select their sites of insertion.

Select the actions of the medial pterygoid muscle.

The 1. _________ and 2. _________ muscles create a sling cradling the angle of the mandible.

Select the actions of the lateral pterygoid muscle.

Select the suprahyoid muscles.

Select the actions of the digastric muscle.

The anterior belly of the digastric muscle is innervated by the:

The posterior belly of the digastric muscle is innervated by the:

Select the actions of the mylohyoid muscle.

Select the actions of the stylohyoid muscle.

Select the actions of the geniohyoid muscle.

Select the infrahyoid muscles.

Most of the infrahyoid muscles depress the hyoid bone during swallowing and speech, except one. Which is the exception?

1. The Sternothyroid muscle originates on the sternum and inserts on the thyroid cartilage.

2. Its action is to depress the thyroid cartilage and larynx. It does NOT directly depress the hyoid bone.

Select the actions of the thyrohyoid muscle.

The tongue muscles consist of two symmetrical halves divided by a median septum at the ____________.

The tongue muscles are divided further into extrinsic and intrinsic tongue muscles.

Select the actions of the genioglossus muscle.

1. The origin of the hypoglossus muscle is the _______.

2. The insertion of the hypoglossus muscle is the _______.

The action is to depress the tongue.

1. The origin of the styloglossus muscle is the _______.

2. The insertion of the styloglossus muscle is the _______.

The action is to retract the tongue.

The superior, middle, and inferior pharyneal constrictors overlap. They insert onto the ________. The action is to move food downward.

There are ____ paired muscles of the soft palate.

The muscles of the soft palate are all involved in speaking and swallowing.

1. The palatoglossus muscles form the __________.

2. Its action is to elevate and arch the tongue to the soft palate & depress the soft palate towards the tongue.

1. The palatopharyngeus muscle forms the __________.

2. Its action is to move the palate superior & posterior to help close off nsaopharynx.

1. All of the muscles of the soft palate are innervated by pharyngeal plexus.

2. The tensor veli palatini muscle is innervated by the mandibular branch (V3) of CN-V (Trigeminal Nerve)

The muscle in green elevates and widens the pharynx. It is innervated by the CN: glossopharyngeal IX.

All of the intrinsic muscles of the tongue are innervated by: