Surface Anatomy Flashcards
What is the name of the area between the 2 supraciliary arches?
Glabella
What is the Glabella reflex? What does it signify if a person can not prevent it?
Tapping on Glabella causes person to blink.
If unable to resist then sign of neurodegenerative disorder E.g. Parkinson’s or dementia.
What are the external landmarks for the superior saggital sinus?
Nasion anteriorly and inion posteriorly.
Where do fontanelles form? When have they fused by?
Bregma - 18 months
Lambda - 2-3 months
Along what plane does the Frankfurt line run?
Orbitomeatal plane
What structure lineates the transverse sinus?
Parietomastoid suture.
What external landmark identifies where the sigmoid sinus finishes?
1cm above the apex of the mastoid process.
What is the porion?
Superior most extent of the external acoustic meatus
What marks the level of the floor of the middle cranial fossa?
Superior border of zygomatic arch
Where is the transverse process of C1 located?
1cm anterior and inferior to the mastoid process.
What structure is located at C2?
Angle of mandible
What structure is located at C3?
Hyoid bone
What structures are located at C4?
Thyrohyoid membrane and carotid bifurcation
What structures are located at C5?
Laryngeal prominence and vocal cords
What structure is located at C6?
Cricoid cartilage and start of the trachea.
What line marks the superior boundary of the neck?
Pericraniocervical
What spinal vertebrae is included in the inferior boundary of the neck?
C7
Name the boundaries of the carotid triangle
Posterior - SCM
Superior - posterior belly digastric
Inferior - omohyoid
Which muscle divides the posterior triangle in 2?
Posterior head of omohyoid.
What are the names of the 2 sub triangles of the posterior triangle?
Omoclavicular
Occipital
Name the muscles which border the submandibular triangle
Anterior nd posterior bellies of digastric.
Name the subtriangles of the anterior triangle
Muscular
Carotid
Submental
Submandibular
