Skull, Head, Neck

Question 1

What sutures meet at the pterion?

Answer 1

Intersection of frontal, parietal, sphenoidal, parietal and temporal

Question 2

What sutures meet at the asterion?

Answer 2

Squamosal suture meets lamboid suture.

Question 3

Name all sutures present in skull.

Answer 3

Coronal, sphenosquamosal, sphenoparietal, sphenofrontal, squamosal, lamboid, sagittal suture

Question 4

What are the 4 divisions of the temporal bone?

Answer 4

Flat squamous
Petrous
Mastoid
Styloid process

Question 5

What are the spaces of the nasopharynx?

Answer 5

Parapharyngeal - external carotid branches, mandibular nerve

Infratemporal space - pterygoid muscles

Pterygopalatine fossa - d3 cn5, maxillary artery

Question 6

What are the branches of the external carotid artery?

Answer 6

Superior thyroid
ascending pharyngeal - meningeal
Lingual
Facial
Occipital - stylomastoid
Posterior auricular
Superficial temporal
Maxillary - First part - middle meningeal, accessory meningeal, inferior dental
- second - temporalis, pterygoid, masseter
- third - superior dental, infraorbital artery, greater palatine artery, sphenopalatine

Question 7

What are the facial venous branches of the face?

Answer 7

Superficial temporal and maxillary form retromandibular. Joins with facial vein to firm ijv
Posterior part joins with post auricular to form external jugular vein.

Question 8

Branches of the subclavian artery.

Answer 8

Vertebral artery
Internal mammary artery
Thyrocervical trunk
Costocervical artery

Question 9

Name the different divisions of the brachial plexus.

Answer 9

Roots - C5 - T1
Trunks - upper middle lower
Divisions - anterior posterior
Axillary cords - lateral posterior medial
Main branches - radial, MSc, axillary, median, ulnar

Question 10

At what age does the anterior and posterior fontanelles close?

Answer 10

Anterior - 15 - 18 months
Posterior - 6 - 8 months

Question 11

What structures can have calcifications on skull x-ray?

Answer 11

Pineal gland
Habenulare commissure
Choroid plexus
Dural
Arachnoid
BG
Eye lens
Internal carotid artery

Question 12

Describe the pathway of the internal carotid artery.

Answer 12

Enters cranium through carotid canal in petrous bone, vert then hori

Foramen lacerum

Forward in cavernous sinus then upwards into clinoid segment

Enters SA space

Ends in opthalmic segment