Anatomy and Physiology Flashcards
Borders of anterior triangle of the neck
Midline of the neck
Anterior border of the sternocleidomastoid muscle
Mandible
Borders of the posterior triangle of the neck
Posterior border of the sternocleidomastoid muscle
Anterior border of the trapezius
Clavicle
Function of the parathyroid
Regulates calcium and phosphate levels
Chorda tympani nerve
function and pathway
A branch of the facial nerve
Provides taste sensation to the anterior 2/3rds of the tongue
Carried in CrN. V3
Sensory and taste innervation to posterior 1/3rd of tongue
Glossopharyngeal nerve (Cr.N.IX)
Motor supply to all tongue muscles (except pataglossus)
Hypoglossal nerve (Cr.N.XII)
Nerve supply to oropharynx
pharyngeal plexus (Cr.N.IX – X)
Pharyngeal plexus
Cr.N.IX - X
sensory innervation of oropharynx and hypopharynx
Motor innervation of pataglossus
Sensory innervation of the nose
Mid-part + tip: Cr.N.V1
Sides: Cr.N.V2
the occipital protuberance is part of which bone
Occipital
The mastoid process is part of which bone
temporal
The zygomatic arch is made of which bones
Zygomatic and temporal
The styloid process is part of which bone
temporal
The occipital condyles are part of which bone
occipital
Which 2 structures pass through the foramen magnum
Spinal cord + medulla
Right + left vertebral arteries
The superior nuchal line is part of which bone
Occipital
What type of joint is most common between skull bones
Suture (fibrous joint)
5 layers of the scalp
Skin Connective tissue (dense) Aponeurosis (epicranial) Loose connective tissue (not visible) Periosteum (not visible)
In which layer of the scalp are blood vessels present
Dense connective tissue
Why do scalp wounds bleed profusely
Dense connective tissue prevents vasoconstriction
Branches of the internal carotid artery
Supratrochlear artery
Supra-orbital artery
What is diploe
spongy cancellous bone in skull bones
location of the muscles of facial expression
within the superficial fascia of the face and neck
The facial nerve leaves the cranial cavity through which foramen
Stylomastoid foramen
Where does the parotid gland open into the oral cavity
Opposite the second, maxillary, molar tooth
Sympathetic and parasympathetic to the parotid gland
parasympathetic: glossopharyngeal nerve (IX)
Sympathetic: external carotid nerve plexus
4 compartments of the neck
vertebral compartment
visceral compartment
vascular compartment
musculofascial compartment
Type of joint between the occipital condyles and C1 (atlas)
ellipsoid
type of joint between C1(atlas) and C2(axis) at the odontoid peg
pivot
Structures passing through the foramen transversarium
Vertebral artery and vein
contraction of right sternocleidomastoid muscle
head tilts to right
face turns to left
action of the trapezius
shoulder elevation
Attachments of the trapezius muscle
Occipital bone
Spinous processes C7 - T1
Lateral clavicles
Acromion spine of scapula
Contents of the carotid sheath
Common carotid artery
Internal jugular vein
Vagus nerve
level of bifurcation of the common carotid artery (in relation to other structures)
Superior border of the cricoid cartilage
which (internal or external) carotid artery is more lateral?
internal
where does the IJV emerge from the skull
the jugular foramen
Components of the thyroid
2 lobes + isthmus
level of the isthmus (in relation to other structures)
over the 1st tracheal ring
embryological formation of flat bones of the cranial vault
membranous ossification
embryological formation of irregular bones of the base of the skull
endochondral ossification
embryological formation of the skeleton of the face
Partly from branchial arches
Partly from sensory capsules
membrane covered spaces in the incompletely ossified skull of an infant
Fontanelles
2 bones forming the nasal septum
Vomer
Perpendicular plate of the ethmoid bone
(The vomer is inferior to and extends further anteriorly than the perpendicular plate)
Olfactory nerves pass through the…
Cribriform plate
Part of the ethmoid bone (but looks separate), forms the roof of the nasal cavity
The fold of dura mater that separates the 2 cerebral hemispheres is called…
Falx cerebri
The falx cerebri attaches to the….
+where is it
Crista gali
Superior to the cribriform plate, just posterior to the frontal sinus
The superior and middle conchae/turbinates are formed from which bone
Ethmoid
(but are mostly cartilage so are rarely seen on a bony specimen)
((the inferior turbinates are formed by their own separate bone))
The roof of the nasal cavity is lined with…
olfactory mucosa
the rest of the cavity is lined with respiratory epithelium
The roof of the nasal cavity is innervated by…
The olfactory nerve (CrN.I)
The space above the superior concha is called…
Sphenoethmoidal recess
What opens into the sphenoethmoidal recess
the sphenoid sinus
What opens into the superior meatus
The posterior ethmoidal air cells
What opens into the middle meatus
The maxillary sinus
The frontal sinus
The anterior & middle ethmoidal air cells
What opens into the inferior meatus
The nasolacrimal duct