20 Questions
What is the origin of the Facial Artery?
Branch from external carotid
Which branch of the facial nerve innervates the posterior belly of the digastric muscle?
Posterior auricular branch
What is the result of facial palsy?
Inability to close the eye
Which of the following muscles is not supplied by the facial nerve?
Masseter muscle
The facial nerve gives how many terminal branches after entering the parotid gland?
5
Which branch of the Trigeminal Nerve is responsible for supplying the lacrimal gland?
Lacrimal nerve
What is the origin of the middle fibers of the buccinator muscle?
Ptergomandibular raphe
Which branch of the facial nerve is responsible for supplying the buccinator muscle?
Buccal branch
What is the type of the facial nerve?
Mixed nerve with motor, sensory, and parasympathetic components
Which nerve is responsible for supplying the sensation to the angle of the mandible?
Great auricular nerve
Which branch of the facial artery is responsible for supplying the lateral nasal region?
Lateral nasal artery
What is the name of the branch that supplies the antero-inferior angle of the masseter?
Transverse facial artery
Which of the following is NOT a terminal branch of the superficial temporal artery?
Middle temporal artery
Where does the facial vein begin?
At the medial angle of the eye
What is the name of the artery that supplies the scalp but not the face?
Superficial temporal artery
Which cranial nerve is responsible for supplying the muscles of facial expression?
Facial nerve
What is the origin of the orbital part of the Orbicularis Oculi muscle?
Frontal bone
Which of the following muscles is not part of the facial expression muscles?
Masseter muscle
Which cranial nerve is responsible for supplying sensation to the face?
Trigeminal nerve
What is the action of the palpebral part of the Orbicularis Oculi muscle?
Gentle closure of the lids
Study Notes
Facial Nerve
- The facial nerve emerges from the stylomastoid foramen and divides into five terminal branches after passing through the parotid gland.
- The branches are:
- Posterior auricular, to the occipital belly of occipitofrontalis muscle and muscles around the ear
- Temporal branch
- Zygomatic branch
- Buccal (upper and lower) branches
- Mandibular branch
- Cervical branch
Blood Supply of the Face
- Arteries of the face:
- Facial artery: originates from the external carotid artery, passes through the digastric triangle, and terminates by giving the angular artery
- Lacrimal part: arises from the posterior crest and adjacent part of the orbital surface of the lacrimal bone
- Buccinator: originates from maxilla above three molars, mandible below three molars, and pterygomandibular raphe
- Nerve supply of the face:
- Temporal branch of the facial nerve (supplies the lacrimal part)
- Facial nerve (upper and lower buccal branches) supplies the buccinator
Nerve Supply of the Face
- Sensory nerve supply:
- Trigeminal nerve (divided into ophthalmic, maxillary, and mandibular divisions)
- Great auricular nerve (C2, 3) of the cervical plexus
- Motor nerves of the face:
- Facial nerve (mixed nerve, motor, sensory, and containing parasympathetic)
- Branches:
- Ascending palatine artery
- Tonsillar artery
- Submental artery
- Glandular branches
Arteries of the Face
- Facial artery: originates from the external carotid artery, passes through the digastric triangle, and terminates by giving the angular artery
- Supraorbital artery
- Supratrochlear artery
- Lateral nasal branch
- Septal branch
- Angular artery
- Superior labial branch
- Inferior labial branch
Veins of the Scalp and Face
- Superficial temporal vein
- Maxillary vein
- Cavernous sinus
- Supratrochlear vein
- Supra-orbital vein
- Posterior facial vein
- External jugular vein
- Anterior facial vein
- Emissary veins
- Deep facial vein
- Subclavian vein
- Pterygoid plexus
- Common facial vein
- Internal jugular vein
- Connections with cavernous sinus
- Facial vein: begins at the medial angle of the eye, runs downwards and backwards behind the facial artery, and leaves the face to enter the neck.
Test your knowledge of the lacrimal part and buccinator muscles, including their origins, insertions, actions, and nerve supply. Understand the anatomy of the eye and its surrounding muscles.
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