1. The largest commissural fiber bundle connecting the two cerebral hemispheres is the: A) Anterior commissure B) Fornix C) Corpus callosum D) Posterior commissure Answer: C 2. The principal relay station for most sensory information traveling to the cerebral cortex is the: A) Hypothalamus B) Thalamus C) Midbrain tectum D) Medulla oblongata Answer: B 3.
1. The primary motor cortex is located in which part of the cerebral cortex? A) Postcentral gyrus B) Superior temporal gyrus C) Precentral gyrus D) Cuneus Answer: C 2. Which artery mainly supplies the lateral surface of the cerebral hemisphere, including Broca’s and Wernicke’s areas? A) Anterior cerebral artery B) Posterior cerebral artery C) Middle
1. The external auditory canal (meatus) is lined laterally by: A) Respiratory epithelium B) Keratinized stratified squamous epithelium (skin) with hair and ceruminous glands C) Simple cuboidal epithelium D) Pseudostratified ciliated columnar epithelium Answer: B) Keratinized stratified squamous epithelium (skin) with hair and ceruminous glands 2. The tympanic membrane’s pars tensa receives its radial and
1. The nasal cavity floor is formed mainly by the: A) Cribriform plate of ethmoid B) Palatine process of maxilla and horizontal plate of palatine bone C) Nasal bone and frontal bone D) Body of sphenoid Answer: B) Palatine process of maxilla and horizontal plate of palatine bone 2. The roof of the nasal cavity
1. The roof of the orbit is formed mainly by the: A) Zygomatic bone B) Frontal bone (orbital plate) C) Maxilla (orbital surface) D) Lacrimal bone Answer: B) Frontal bone (orbital plate) 2. The inferior orbital fissure transmits which major structure? A) Optic nerve (CN II) B) Infraorbital nerve (branch of V2) and zygomatic nerve
1. The laryngeal cartilage that forms the complete ring and is the only one to do so is the: A) Thyroid cartilage B) Cricoid cartilage C) Arytenoid cartilage D) Epiglottis Answer: B) Cricoid cartilage 2. The vocal ligaments are the thickened free edges of which fold? A) Vestibular (false vocal) fold B) Vocal (true vocal)
1. The pharyngeal opening of the auditory (Eustachian) tube is located in the: A) Oropharynx B) Nasopharynx (on the lateral wall at the torus tubarius) C) Laryngopharynx D) Oral cavity Answer: B) Nasopharynx (on the lateral wall at the torus tubarius) 2. The muscle that forms the palatopharyngeal fold is the: A) Stylopharyngeus B) Palatopharyngeus
1. The oral vestibule is bounded medially by the: A) Lips and cheeks (gingivolabial and gingivobuccal sulci) B) Palate C) Floor of mouth D) Tongue Answer: A) Lips and cheeks (gingivolabial and gingivobuccal sulci) 2. The foramen cecum of the tongue is the embryologic remnant of the: A) First pharyngeal pouch B) Lateral lingual swellings
1. The thyroid gland develops from which embryological structure? A) Third pharyngeal pouch B) Fourth pharyngeal pouch C) Endodermal thickening at the foramen cecum D) Neural crest cells Answer: C) Endodermal thickening at the foramen cecum 2. The isthmus of the thyroid gland typically lies opposite which tracheal rings? A) 1st and 2nd B) 2nd
1. The largest salivary gland in the human body is: A) Sublingual gland B) Submandibular gland C) Parotid gland D) Buccal gland Answer: C) Parotid gland 2. The duct of the parotid gland opens into: A) Sublingual fold B) Opposite the upper second molar tooth C) Floor of mouth D) Oral vestibule near lower molar
