Quiz 8 Flashcards
Which salivary gland is the largest?
The parotid gland
The parotid gland is the largest of the major salivary glands.
What percentage of saliva does the parotid gland produce?
Approximately 25%
Although the parotid gland is the largest, it produces only about 25% of the total volume of saliva.
What duct does the parotid gland empty into?
Stensen’s duct
The parotid gland empties into the mouth through Stensen’s duct.
Which is the only movable bone of the face?
Mandible
The mandible is the only movable bone of the skull.
Where are cervical lymph nodes located?
In the neck
Cervical lymph nodes are located in the neck.
Which duct is associated with the parotid salivary gland?
Stensen’s duct
The parotid gland is associated with Stensen’s duct.
Serous saliva is ____________________ fluid.
watery and mainly protein
Serous saliva is watery and mainly protein fluid.
What is the most common cause of restricted mandibular movement?
Trismus
Trismus is a spasm of the muscles of mastication.
Which vein courses from the pterygoid plexus to the facial vein?
Deep facial vein
The deep facial vein comes from the pterygoid plexus to the facial vein.
Lateral movement of the mandible occurs when the internal and external pterygoid muscles:
on the same side of the face contract together
Lateral movement occurs when the internal and external pterygoid muscles on the same side of the face contract together.
Which bone forms the posterior part of the hard palate?
Palatine
The palatine bone forms the posterior part of the hard palate and the floor of the nose.
The cranium consists of _______ bones.
8
The cranium is composed of eight bones that protect and cover the brain.
The _______________ articulates with the ethmoid and frontal bones.
lesser wing of the sphenoid
The lesser wing of the sphenoid articulates with the ethmoid and frontal bones.
The fontanelle of a newborn is located where the parietal bones articulate with which bone?
Frontal
The fontanelle is located where the sutures between the frontal and parietal bones have not yet closed.
The _______________ form(s) the bridge of the nose.
lacrimal bones
The lacrimal bones make up part of the orbit at the inner angle of the eye.
Which muscle forms a submandibular triangle with the mandible?
Digastric
The digastric muscle forms with the mandible a submandibular triangle on each side of the neck.
The muscle that raises and wrinkles the skin of the chin is the:
mentalis
The mentalis raises and wrinkles the skin of the chin and pushes up the lower lip.
Which of the following is a neck muscle?
Sternocleidomastoid
The sternocleidomastoid and trapezius are neck muscles.
A(n) _____________ can develop in the salivary duct.
sialolith
A sialolith, or stone, can develop in a salivary duct that can block the duct.
A ___________ is an opening in bone through which blood vessels and nerves pass.
foramen
A foramen is a natural opening in bone through which blood vessels and nerves pass.
Which artery supplies blood to the face and mouth?
External carotid
The blood supply for the face and mouth comes from the external carotid artery.
Which bone is suspended between the mandible and the larynx?
Hyoid
The hyoid bone is the only bone that does not articulate with another bone.
Which bone is suspended between the mandible and the larynx?
Hyoid
The hyoid bone does not articulate with any other bone and is shaped like a horseshoe.
The oral cavity is primarily innervated by which nerve?
Trigeminal
The trigeminal nerve has three divisions, with the mandibular and maxillary divisions being the primary sources of innervation for the oral cavity.
Patients with TMD may have ____________ of the muscles of mastication.
spasms
Spasms can lead to tissue damage, increased pain, and muscle tenderness.
Which structure separates the coronoid and condyloid processes?
Sigmoid notch
The coronoid process is the anterior portion of the ramus of the mandible, while the condyloid process is the posterior process.
Which artery supplies blood to the maxillary anterior teeth?
Anterior superior alveolar
The anterior and middle superior alveolar arteries supply the maxillary incisors and canine teeth.
Which statement is not true of trismus?
Trismus is a cracking sound in the temporomandibular joint.
Crepitus is the term for the cracking sound that may be heard in a joint.
Which nerve innervates the maxillary first and second premolars?
Middle superior alveolar
This nerve supplies the maxillary first and second premolars and sometimes the mesiobuccal root of the maxillary first molar.
Which foramina is located on the lingual surface of each ramus of the mandible?
Mandibular foramen
The mandibular foramen contains the inferior alveolar vessels and nerve.
The articulation between the _____________ and the mandible forms the temporomandibular joint.
temporal bones
The TMJ allows the mandible to move for speech and mastication.
Which of the following sinuses is the largest?
Maxillary
The maxillary sinuses are located superior to the maxillary molars.
The human skull is divided into the _________ and the face.
cranium
The cranium protects the brain and consists of eight bones.
The first phase in mouth opening and movement of the temporomandibular joint is:
hinge action
The second phase is the gliding movement.
Which type of bone forms the back and base of the cranium?
Occipital
The occipital bone is located at the back of the skull.
Which bone forms the prominence of the cheeks and part of the orbit?
Zygomatic
The zygomatic bone is also known as the cheekbone.
Cranial nerves originate from which of the following areas?
Directly from the brain
Cranial nerves serve both sensory and motor functions.
Which blood vessel gives rise to the common carotid artery?
Aorta
The common carotid artery supplies blood to the brain and face.
The ________________ forms the support for the teeth of the maxillary arch.
alveolar process
The alveolar process is not a tuberosity; it supports the teeth.
The submandibular salivary gland lies beneath the mandible in the __________.
submandibular fossa
It produces 60% to 65% of the total volume of saliva.
The site where bones come together to form a cartilaginous joint is called a:
symphysis
Examples include the pubic symphysis.
Mandibular movement is possible due to the activity of which group of muscles?
Mastication
The TMJ works with the muscles of mastication for all movements of the mandible.
Which artery supplies maxillary posterior teeth?
Posterior superior alveolar artery
This artery is responsible for supplying blood to the maxillary molars.
Where are the muscles of the floor of the mouth located?
Between the mandible and the hyoid bone.
What are the main functions of the muscles of the tongue?
Provide movements and functions including speech, chewing, and swallowing.
Which artery supplies maxillary posterior teeth?
Posterior superior alveolar artery.
What does the facial artery supply?
Blood to the muscles of mastication.
What is the function of the lingual artery?
Supplies blood to the tongue.
What does the inferior alveolar artery supply?
Blood to the mandible and all mandibular teeth.
Fill in the blank: The anterior, middle, and _______ superior alveolar arteries supply the maxillary teeth.
posterior
True or False: The inferior alveolar artery supplies blood to the maxillary teeth.
False
