Bony skull, neck, scalp and face Flashcards
3 main sutures of the skull?
Lambdoid, coronal and sagittal
Foramen through which facial nerve leaves the skull?
Stylomastoid foramen
5 layers of the scalp?
Skin Connective tissue (dense) Aponeurosis of occipitofrontalis muscle Loose connective tissue Pericranium (periosteum of skull bone)
Bones forming the neurocranium?
Frontal Parietal Occipital Sphenoid Ethmoid Temporal
Part of skull bone which houses red bone marrow?
Diploe (spongey bone)
3 branches of trigeminal nerve?
Opthalmic
Maxillary
Mandibular
Cranial nerve V?
Trigeminal nerve
Cranial nerve VII?
Facial nerve
2 parts of temporal bone?
Squamous (flat)
Petrous (rocky)
Bones of the viscerocranium?
Mandible Maxilla Zygomatic Vomer Palatine Lacrimal Ethmoid Nasal Nasal concha
Largest foramen in the base of skull?
Foramen magnum
Bones forming zygomatic arch?
Zygomatic
Temporal
Terminal branches of facial nerve?
Cervical Marginal mandibular Zygomatic Temporal Buccal
Gland pierced by facial nerve?
Parotid gland
Structures passing through foramen magnum?
Spinal cord
Right and left vertebral arteries
Most common type of joint found in skull?
Fibrous suture
Layer of scalp where blood vessels are present?
Dense connective tissue
Pairs of salivary glands?
Submandibular
Sublingual
Parotid
Tooth which parotid duct opens opposite to in mouth?
Second maxillary molar
Cranial nerve IX?
Glossopharyngeal nerve
Main arteries supplying the face?
Facial artery
Superficial temporal artery
Vein draining facial and superficial temporal veins?
Internal jugular vein
Four compartments of the neck?
Vascular
Visceral
Vertebral
Musculofascial collar
Main structures carried in vascular compartment of neck?
Common carotid artery
Internal jugular vein
Vagus nerve
Type of joint between C1 and odontoid processes?
Condyloid synovial
Type of joint between C1 and dens of C2?
Pivot synovial
Right common carotid artery arises from?
Brachiocephalic trunk
Left common carotid artery arises from?
Arch of the aorta
Common carotid arteries divide at vertebral level?
C4
Which carotid artery sits more laterally?
Internal carotid artery
Terminal branches of external carotid artery?
Maxillary artery
Superficial temporal artery
Suprahyoid muscles?
Digastric
Mylohyoid
Geniohyoid
Stylohyoid
Cranial nerve XII
Hypoglossal nerve
Action of suprahyoid muscles?
Elevate hyoid bone
Infrahyoid muscles?
Sternohyoid
Sternothyroid
Omohyoid
Thyrohyoid
Origin of superior thyroid artery?
External carotid artery
Origin of inferior thyroid artery?
Subclavian artery
Cricoid cartilage ends and trachea begins at vertebral level?
C6
Parts of thyroid gland?
Isthmus
Left lobe
Right lobe
Bone that gives off mastoid process?
Temporal
Cranial nerve XI?
Spinal accessory nerve
Sternocleidomastoid and trapezius are innervated by?
Spinal accessory nerve
Brachial plexus spinal roots?
C5-T1
External jugular vein drains to?
Subclavian vein
Internal jugular vein drains to?
Brachiocephalic vein
Brachiocephalic vein formed by?
Union of internal jugular vein and subclavian vein
Location of vagus nerve with regards to vascular contents of carotid sheath?
Posterior
Spinal roots of cervical plexus?
C1-C4
Subdivisions of anterior triangle and their boundaries?
Submental (anterior bellies of digastric)
Submandibular (mandible and both bellies of digastric)
Carotid (posterior belly of digastric, superior belly of omohyoid and sternocleidomastoid)
Muscular (hyoid bone, superior belly of omohyoid and sternocleidomastoid)
Important structures in anterior triangle of neck?
Carotid arteries
Internal jugular veins
Vagus nerve
Important structures in posterior triangle of neck?
Subclavian artery Subclavian vein External jugular vein Brachial plexus Cervical plexus
Deep fascial layers of the neck?
Investing
Pretracheal
Prevertebral
Carotid sheath
Examination to determine functionality of thyroidal nodules?
Technetium 99m pertechnetate scan
Structures forming thoracic inlet?
Manubrium
First pair of ribs
First thoracic vertebra
Structures forming the interscalene triangle?
Anterior scalene muscle
Middle scalene muscle
First rib on each side
Branches of the external carotid artery?
Superior thyroid artery Ascending pharyngeal artery Lingual Facial Occipital Posterior auricular artery Maxillary Superficial temporal
Cranial nerve VI?
Abducent nerve
Cranial nerve III?
Oculomotor
Cranial nerve IV?
Trochlear
Sensory innervation of the face?
Trigeminal nerve
Innervation of muscles of facial expression?
Facial nerve
Parts of the pharynx?
Nasopharynx
Oropharynx
Laryngopharynx
Cranial nerve I?
Olfactory
Cranial nerve II?
Optic
Embryological origin of the face and neck?
Pharyngeal (branchial) arches
Embryological origin of mandible to outer ear?
First pharyngeal arch
Number of pharyngeal arches?
Five
Nerve supply to first pharyngeal arch?
Mandibular division of trigeminal nerve
Nerve supply to second pharyngeal arch?
Facial nerve
Nerve supply to third pharyngeal arch?
Glossopharyngeal nerve
Nerve supply to fourth pharyngeal arch?
Vagus nerve
Nerve supply to sixth pharyngeal arch?
Vagus nerve
Mesenchymal processes?
One frontal
Two maxillary
Two mandibular
Embryological origin of hard palate?
Palatine shelves of maxillary mesenchymal process
Embryological origin of viscerocranium?
Mesenchymal processes
Embryological origin of hyoid bone to styloid process?
Second pharyngeal arch
Embryological origin of thyroid cartilage?
Fourth pharyngeal arch
Embryological origin of cricoid cartilage?
Sixth pharyngeal arch
Ossification of base of the skull?
Endochondral ossification
Ossification of the neurocranium?
Intramembranous ossification
Structures forming anterior fontanelle?
Sagittal suture and coronal suture
Suture separating frontal bones?
Frontal (metopic) suture
Ossification of the viscerocranium?
Endochondral ossification
Embryological origin of body and greater horn of hyoid bone?
Third pharyngeal arch
Cranial nerves supplying pharyngeal arches?
Trigeminal nerve
Facial nerve
Glossopharyngeal nerve
Vagus nerve
Muscle formed by third pharyngeal arch?
Stylopharyngeus muscle
Embryological origin of tympanic membrane?
First pharyngeal pouch
Embryological origin of thymus?
Third pharyngeal pouch
Embryological origin of parathyroid glands?
Third pharyngeal pouch
Embryonic layer which mixes with neural crest cells?
Mesoderm
Substance formed by fusion of mesoderm and neural crest cells?
Neural crest mesenchyme
Hyoid bone corresponds to vertebral level?
C3
Mandible corresponds to vertebral level?
C2
Thyroid cartilage corresponds to vertebral level?
C4
Cricoid cartilage corresponds to vertebral level?
C6
Spinal roots of ansa cervicalis?
C1-C3
Subdivisions of posterior triangle?
Supraclavicular triangle
Occipital triangle
Number of levels of neck lymph nodes?
Five
Cranial nerves leaving skull through jugular foramen?
Glossopharyngeal nerve
Vagus nerve
Accessory spinal nerve
Branch of trigeminal nerve carrying motor fibres?
Mandibular division (V3)
Information carried by maxillary division of trigeminal nerve?
Sensory
Innervation of muscles of mastication?
Mandibular branch of trigeminal nerve
Spinal root values of phrenic nerve?
C3-C5
Lymph nodes receiving drainage from scalp, neck and face?
Deep cervical lymph nodes
Lymph nodes of head, scalp and face?
Parotid nodes Submandibular nodes Submental lymph nodes Buccal lymph nodes Mastoid lymph nodes Occipital lymph nodes
Cranial nerve VIII?
Vestibulocochlear nerve