Gross Facial and Oral Anatomy Flashcards
What does the frontal bone in the skull make up?
The cap of the skull and the roof of the eye socket
Where are the two seals of muscle in the face found and what are they called?
Around the eye and mouth.
Eye = orbicularis oculi
Mouth = orbicularis oris
What muscles of the face allow for a puzzled look?
Frontal muscles
What are masticatory muscles needed for?
To tense the jaw and to move it from side to side
Why is the natural position of the mouth closed?
To avoid infection
What is the nerve which supplies the mandible and maxilla called?
The trigeminal nerve
What does the trigeminal nerve mainly supply and how many divisions does it have?
Mainly supplies the muscles of mastication and it has 3 divisions.
Is the part going towards the orbit and towards the maxilla of the trigeminak nerve , sensory or motor?
Sensory
Is the part coming down to the mandilble or the trigeminal nerve sensory or motor? What does this part supply?
Motor and it supplies the anterior 2/3 of the tongue.
What parts of the trigeminal nerve do you need to get ti?
The maxillary and mandibular divisions of the trigeminal nerve.
In terms of sensory innervation of the face, what are the three nerves supplying from top downwards?
Opthalmic, maxillary and mandibular.
Which nerve supplies the muscles of the face (motor)? Which nerve supplies the skin (sensory)?
Facial nerve, trigeminal nerve
Which artery supplies the neck and head?
The common carotid artery
Which part of the common carotid artery supplies what?
Internal supplies a part of the brain and external supplies the face and neck
Which artery supplies the tongue?
Lingual artery
What do blood vessels do to increase blood supply to the face?
The vessels mix together
What artery goes to the lower jaw? Why does it have this name?
The maxillary artery and because it terminates in the maxilla.
What vein does the facial vein come down and drain into?
The internal jugular vein
What are there none of in the veins of the head? Where is the first one found?
No valves (gravity is used), first valvue is found in the internal juglar vein.
What tissue is the top of the mouth made of?
Hard at the anterior and soft at the posterior
What gives the lower mouth a soft base?
Soft tissue, salivary glands and muscle
What will happen if something is kept in the mouth?
The bone will begin to remodel and cause changes to the mouth shape
How much of the tongue is in the oral pharynx?
1/3
Why does the visible 2/3 have glands and mucous membranes?
To keep the mouth moist
When are the minor glands in operation?
All the time
What does the hyoglossus nerve supply?
The tongue
What is the difference in the secretion of the parotid gland and the submandibular gland?
The submandibular is less watery
Why are there blood capillaries underneath the mucous membrane?
To warm up the air before it enters the lungs
What are the roles of sinuses in the head?
To keep the weight of the head as low as possible
