Head and Neck Flashcards
Superficial muscles of the face are also known as ______ muscles.
expression
Deep muscles of the face are also known as _________ muscles.
mastification
What are the 3 main classifications of superficial muscles of the face, based on location?
- Orbital
- Nasal
- Oral
What is another term for a dense layer of connective tissue?
aponeurosis
The epicranial aponeurosis connects what two muscle bellies?
- Frontal
2. Occipital
What nerve innervates the superficial muscles of the face?
CN VII (7)
What are the 3 sets of fibers in orbicularis oculi?
- Palpebral
- Orbital
- Lacrimal
The 3 terminal branches of what nerve supply the entire skin of the face?
Trigeminal
What is the muscle that widens the mouth to smile and is commonly missing from the face?
Risorious
What does the supraorbital nerve supply?
Skin of face from upper eyelid to vertex
What does the infraorbital nerve supply?
Skin of face from lower eyelid to top of lips
What does the mental nerve supply?
Remaining skin of face around mandible
What nerve and what division supply all deep muscles of the face?
CN V (5), mandibular division
What 4 muscles are included in the deep muscles of the face?
- Masseter
- Medial pterygoid
- Lateral pterygoid
- Termporalis
What are the 3 divisions of CN V?
- Opthalmic
- Maxillary
- Mandibular
Which division of CN V carries motor fibers for the muscles of mastication?
Mandibular
Bell’s palsy is a peripheral nerve lesion that involves only the _________ branches of CN VII.
motor
Where do the motor fibers of CNVII pass through?
styomastoid foramen
The layer of connective tissue that surrounds peripheral nerves is called?
epineurium
Would a patient have crocodile tears running down their face in the case of Bell’s Palsy, stroke, or both?
Bell’s palsy
What type of joint is the TMJ?
synovial condylar
What are the 3 articular surfaces of the TMJ?
- Mandibular fossa of temporal bone
- Condylar process of mandible
- Articular tubercle of temporal bone
What 3 structures support the TMJ?
- Lateral temporomandibular ligament (intrinsic)
- Sphenomandibular (extrinsic)
- Stylomandibular (extrinsic)
To complete the ROM (opening of mouth) the head of the mandible must be pulled forward by what muscle?
Lateral pterygoid