HEAD AND NECK
50 questions available
Questions
Which superficial muscle of the neck is innervated by the cervical branch of the facial nerve (CN VII) and acts to tense the skin of the neck?
View answer and explanationThe great auricular nerve, which provides cutaneous sensation to the skin over the angle of the mandible and the auricle, is composed of fibers from which cervical spinal nerve roots?
View answer and explanationA 'blowout' fracture, where the margin remains intact but the medial and/or inferior walls are fractured, affects which skeletal structure of the head?
View answer and explanationWhich muscle of mastication originates from the floor of the temporal fossa and inserts on the coronoid process and ramus of the mandible?
View answer and explanationThe carotid sinus nerve, which is involved in blood pressure regulation, is a branch from which cranial nerve?
View answer and explanationWhat is the clinical significance of the pterion, a region on the lateral aspect of the skull?
View answer and explanationThe infrahyoid muscles, such as the sternohyoid and omohyoid, are primarily innervated by which nerve structure?
View answer and explanationIn a coronal section of the paranasal sinuses, which sinus is located directly superior to the oral cavity and medial to the orbit?
View answer and explanationWhich structure forms the roof of the oral cavity and is composed of the palatine process of the maxillary bone and the horizontal plate of the palatine bone?
View answer and explanationThe submandibular duct (of Wharton) opens into the oral cavity at which specific location?
View answer and explanationWhich intrinsic muscle of the larynx is responsible for abducting the vocal ligaments, thereby opening the rima glottidis?
View answer and explanationThe recurrent laryngeal nerve can be compressed by an aortic arch aneurysm, leading to hoarseness. This nerve provides motor innervation to all intrinsic laryngeal muscles except which one?
View answer and explanationThe lacrimal gland, responsible for tear production, is located in which part of the orbit?
View answer and explanationWhich extrinsic eye muscle is innervated by the trochlear nerve (CN IV) and is responsible for depressing and abducting the eye?
View answer and explanationThe auditory tube (eustachian) connects the tympanic cavity (middle ear) to which structure?
View answer and explanationTrauma to the skull can tear the middle meningeal artery, which runs deep to the pterion, leading to what type of intracranial hemorrhage?
View answer and explanationThe cavernous sinus contains several important structures. Which of the following cranial nerves passes through the cavernous sinus but is NOT located within its lateral wall?
View answer and explanationThe cerebral arterial circle (of Willis) is a critical anastomosis at the base of the brain. Which of the following arteries is NOT a direct contributor to this circle?
View answer and explanationWhich cranial nerve provides motor innervation to the muscles of facial expression, the stapedius, and the posterior belly of the digastric muscle?
View answer and explanationThe optic nerve (CN II) and ophthalmic artery enter the orbit through which opening in the skull?
View answer and explanationAn infection in the 'danger triangle' of the face can spread to the cavernous sinus primarily through which venous connection?
View answer and explanationWhich bony framework structure is formed by the hamulus, pterygomandibular raphe, and mylohyoid line of the mandible?
View answer and explanationBell's palsy is an idiopathic, unilateral facial nerve palsy. This condition would most directly affect which group of muscles?
View answer and explanationThe vertebral artery ascends through the transverse foramina of which cervical vertebrae before entering the skull?
View answer and explanationWhich two arteries provide the primary arterial supply to the thyroid gland?
View answer and explanationThe chorda tympani, which carries taste fibers from the anterior two-thirds of the tongue, is a branch of which cranial nerve?
View answer and explanationThe glossopharyngeal nerve (CN IX) exits the skull through which foramen?
View answer and explanationWhich muscle group is primarily responsible for elevating the hyoid bone, floor of the mouth, and tongue during swallowing and speaking?
View answer and explanationThe dens (odontoid process) is a prominent feature of which cervical vertebra, allowing for pivotal rotation of the head?
View answer and explanationWhich dural venous sinus is located in the superior border of the falx cerebri and is a common site for the drainage of superior cerebral veins?
View answer and explanationWhich fascial layer of the neck encloses the vertebral column and its associated deep muscles, such as the longus colli and scalenes?
View answer and explanationIn a T1-weighted sagittal MRI of the head, which structure is located immediately posterior to the optic chiasm and anterior to the mammillary body?
View answer and explanationWhich muscle is palpated to identify the 'nerve point of the neck' for administering a cervical plexus block?
View answer and explanationWhat is the primary action of the genioglossus muscle?
View answer and explanationThe main trunk of the facial nerve (CN VII) emerges from the skull through which foramen?
View answer and explanationWhich structure passes through the foramen magnum?
View answer and explanationThe parotid duct (of Stensen) pierces which muscle to enter the oral cavity?
View answer and explanationIn a T2-weighted axial MRI of the brain, which structure is located immediately posterior to the pons?
View answer and explanationWhat is the innervation of the dilator pupillae muscle, which is responsible for dilating the pupil?
View answer and explanationAn anastomosis site of vessels in the nasal vestibule, known as Kiesselbach's plexus, is a common site of nosebleeds (epistaxis). Which of the following arteries contributes to this plexus?
View answer and explanationWhich structure separates the superior and inferior portions of the prevertebral fascia in the neck, forming a potential space for infection to spread from the neck to the mediastinum?
View answer and explanationThe bony framework of the nasal septum is primarily formed by which two bones?
View answer and explanationAccording to the usual age of eruption for deciduous (primary) teeth, which teeth are typically the last to erupt, around 20 to 24 months?
View answer and explanationThe lymphatic drainage of the tip of the tongue primarily goes to which group of lymph nodes?
View answer and explanationThe otic ganglion, which provides parasympathetic innervation to the parotid gland, is functionally associated with which cranial nerve but topographically located near which other nerve?
View answer and explanationA lesion of the hypoglossal nerve (CN XII) would result in deviation of the protruded tongue to which side?
View answer and explanationThe tensor veli palatini muscle, which tenses the soft palate, is innervated by a branch of which nerve?
View answer and explanationWhich of the following is NOT a direct branch of the external carotid artery in the neck?
View answer and explanationThe palatine tonsils are located in the oropharynx between which two arches?
View answer and explanationThe thoracic duct, the main lymphatic vessel of the body, typically drains into the venous system at the junction of which two veins on the left side of the neck?
View answer and explanation