Muscles of the head and neck

Question 1

Name the four muscles of mastication

Answer 1

Temporalis

Massager

Lateral pterygoid

Medial pterygoid

Question 2

Which muscles open the mouth

Answer 2

Suprahyoid muscles

Question 3

Which muscles close the mouth

Answer 3

Temporalis masseter lateral pterygoid medial pterygoid

Question 4

Information

Answer 4

Temporalis massater lateral pterygoid medial pterygoid all receive nerve impulses from the fifth cranial nerve trigeminal nerve which caused them to contract so that the length of the muscle shortens

Question 5

What is the origin and insertion of the temporalis muscle

Answer 5

Origin temporal bone

Insertion coronoid process of Mandeville

Can be felt and clenching teeth

Pause the mandible back in closed

Passes under the zygomatic arch

Question 6

What is the origin and insertion of the masseter

Answer 6

Origin outer surface of zygomatic arch

Insertion outer surface of the mandibular Ramas and angle

Closes mandible

gets over developed with bruxism

Superficial can be felt when clenching

Question 7

What is the origin and insertion of the lateral pterygoid

Answer 7

Origin lateral pterygoid plate at the base of the cranium behind the maxillary tuberosity

Insertion head of mandible condyle into the TMJ meniscus

Deeper layer muscles

Lateral pterygoid and medial pterygoid together contract pulling the mandible forwards biting anterior teeth tip to tip

Question 8

What is the origin and insertion for the Medial pterygoid

Answer 8

Origin medial pterygoid plate at the base of the cranium just behind tuberosity closer to the midline

Insertion the inner surface of the mandible Ramas and angle closes the mandible

Together with the lateral pterygoid both contract the mandible forwards allowing anterior teeth to bite tip to tip

Deep layer muscles

Question 9

What are the suprahyoid muscles

Answer 9

Muscles that attach to the hyoid bone for mouth opening and swallowing

Question 10

Information

Answer 10

Anterior and posterior groups of suprahyoid muscles being in front and behind the hyoid bone the anterior groups are relevant to me

Question 11

What are infrahyoid muscles

Answer 11

These are the muscles that Iie beneath The hyoid bone

Question 12

Suprahyoid muscle anterior digastic

Answer 12

Motor branch of trigeminal nerve fit cranial nerve

Origin hyoid bone
Insertion in a surface of mental symphsis of mandible

Lift Hypid bone and larynx during swallowing

Paul’s mandible down to open

Question 13

Mylohyoid muscle

Answer 13

Motor branch of trigeminal nerve fifth cranial nerve

Origin mylohyoid line of the inner surface of the mandible fusing in the mid line to form the floor of the mouth,

Insertion hyoid bone

Lift hyoid bone and larynx during swallowing and opens mouth

Question 14

Glenohoyid muscle

Answer 14

Hypoglossal nerve the 12th cranial nerve

Origin genial tubercles inner surface of mandible

Insertion hyoid bone

Lift hyoid bone and larynx during swallowing opens mouth

Question 15

All facial muscles are innerveirated by which motor branch

Answer 15

Seventh cranial nerve the facial nerve

Question 16

Muscles of facial expression information

Answer 16

They don’t produce skeletal movement, only one end is attached to the school and the other two are deeper layer of facial skin. Causing skin movement. All facial muscles are innovated by motor branch of the facial nerve, seventh cranial nerve

Question 17

What are the muscles called

Answer 17

Orbicularis

Question 18

What are the mouth muscles called

Answer 18

Orbicularis Oris

Question 19

What are the cheek muscles called

Answer 19

Buccinator

Question 20

Buccinator muscles

Answer 20

Cheek muscles that attach above and below the Alviola process connects to muscle wall or throat behind and obicularis in front

It helps chewing by keeping food within the teeth