Oral biology Flashcards
what is the axial skeleton composed of?
skull, spinal column, ribcage
choose the correct statement about orbits:
orbit is made up of facial and cranial bones
which vertebra has no body?
atlas
which capsule encloses the temporal mandibular joint like a tube?
fibrous capsule
which artery branches off to the posterior superior alveolar artery and the inferior alverolar artery?
maxillary artery
mixed cranial nerves contain both sensory and motor fibres except which of the following?
olfactory
which of the following is not part of the basal ganglia?
midbrain
what is the mesothelium derived from?
mesoderm
what is the most common type of cell in skin?
keratinocytes
which of the following muscles are involved in producing horizontal wrinkles on the forehead?
The frontal belly of the occipito- frontalis muscle
what do the geniohyoid, hypoglossus and stylohoid muscles have in common?
all act on the tongue
posterior ethmoidal paranasal sinuses drain into the
superior meatus
which of the following is true about paranasal sinuses?
paranasal simuses enhance the resonance of the voice and lighten the skull
which salivary gland(s) produces the most saliva in unstimulated saliva?
submandibular
which salivary gland(s) produces the most saliva in stimulated saliva?
parotid
the deep part of the submandibular salivary gland lies between the mylohoid and which of the following muscles?
styloglossus
antibiotics that act by inhibiting the RNA polymerase enzyme include:
Rifampicin
what do geniohyoid, stylohyoid and hypoglossus have in common?
all act on the tongue
where is sensory information from the maxillary molars supplied from?
Posterior superior alveolar nerve
which of the following subdural venous sinuses drains into the internal jugular vein after passing through the jugular foramen?
sigmoidal sinus
what describes the suprahyoid muscles?
form the floor of oral cavity and above hyoid bone
sphenoid and ethmoidal paranasal sinuses drain into what?
all paranasal sinuses drain into middle meatus of nose except sphenoidal sinus (drains into spheno-ethmoidal recess) and posterior ethmoidal sinus (drains into superior meatus)
how does the internal caroic enter the cranial cavity?
carotid canal through foramen lacerum
Muscle responsible for wrinking forehead?
anterior belly of occipito-frontalis
the skin overlying the mandible is innervated by the branch of which nerve?
trigeminal V3 (mandibular branch)
What is in the carotid sheath?
Carotid artery
what does the deep part of the submandibular gland lie in between?
between superficial and mylohyoid muscle
which of the following nerve has its nucleus in the pons?
CN V, CN VI, CN VII
parotid/ submandibular/ sublingual gland- which is mixed?
submandibular gland
if a person’s eyes turn medial to give a cross-eyed appearance, it is indicative of damage to the?
CN VI (abducens)
Gram positive cell has a _ peptidoglycan layer in the cell wall
thick
what suture joins the parietal bone?
saggital suture
In long bones, what is the shaft called?
diaphysis
vertebrae for rotational movement?
Axis
which vertebrae does not have a body?
Atlas
Where is simple squamous epithelia found?
Alveoli and capillaries
A girl sticks out her tongue at you, what muscle is she using?
Genioglossus
Which sinus leaves at the jugular foramen?
Sigmoid sinus (and the inferior petrosal sinus)
which arteries give the branches of the posterior superior alveolar arteries and the inferior alveolar arteries?
Maxillary artery
a person is hit in the face, his eye and mouth droops. Which cranial nerve is damaged?
CN VII (facial)
which muscle does the parotid gland pierce?
buccinator
which paranasal sinuses do not drain into the middle meatus?
spheno-ethmoidal and the posterior ethmoidal sinus
which salivary gland produces the most un-stimulated saliva?
submandibular gland
where does the parotid duct open?
next to the second maxillary molar
what is in the larynx?
cricoid cartilage
where does the auditory tube open into?
nasopharynx
what is a feature of mucins?
hydrophobic
which of these is not a type of connective tissue?
Muscle
What makes up the axial skeleton?
skull, spinal column, and ribcage
What are the orbits made up of?
both
If the superior orbital fissure is connected by the frontal and sphenoid bone, what is the inferior orbital fissure connected with as well as the sphenoid bone?
Maxilla
Where does the optic nerve exit the skull?
optic canal
which vertebra does not have a body?
atlas
The vertical plane running from side to side that separates the body or parts of the body into anterior and posterior aspects is called the:
coronal plane
the connective tissue sheath around a peripheral nerve is
epineurium
which is not supported by bronchial blood supply?
alveolar capillary
what causes cleft lip? Incomplete joining of…
none of the above. it is incomplete joining of the maxillary prominences and intermaxillary process
what does the carotid sheath not contain?
sternacleinomastoid
how does the internal carotid artery enter the skull?
carotid canal
the emissary veins bring extra-cranial infection to the skull because
it is connected to veins outside the skull
which of the following subdural venous sinuses drains into the internal jugular vein after passing through the jugular foramen?
sigmoidal sinus
how do you test hypoglossal nerve damage?
Stick tongue out
mixed cranial nerves have both sensory and motor neurones, which of the following are not mixed cranial nerves?
Olfactory
Skin over the angle of mandible is innervated by which nerve?
trigeminal (CN V)
