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Questions and Answers
Which bone forms the roof of the nasal cavities and contains olfactory foramina?
Which bone contains the optic foramen transmitting CNII (vision)?
Which bone forms the lateral bridge of the nose and connects the frontal and nasal bones?
Which bone connects with the zygomatic bones through its zygomatic processes?
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What is the function of the tarsal glands in the eyelids?
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Which muscle is responsible for elevating the upper eyelid?
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What is the function of the orbicularis oculi muscle?
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What is the purpose of convergence in vision?
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Which bone in the body does not articulate with another bone?
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Where is the larynx located?
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Which phase of swallowing involves the elevation of the larynx and epiglottis to block the trachea?
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Which joint is the most active joint in the human body?
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Which muscle depresses the mandible to open the mouth?
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Which muscle is necessary for chewing and swallowing?
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Which muscle is innervated by CNVIII and serves to tense the skin of the neck?
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What is the function of the orbit?
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Which layer of the globe includes the choroid, ciliary body, and iris?
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What controls the size of the pupil?
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What involves the contraction of the extraocular muscles?
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Which cranial nerves innervate the extraocular muscles?
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What is the function of the nose?
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Which nerve supplies the external nose?
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What is the function of paranasal sinuses?
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What is the role of the olfactory nerves (CNI)?
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Which part of the ear is responsible for equilibrium?
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What is the function of the middle ear?
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Which nerve innervates the lips and mouth?
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What is the function of the infraorbital foramen?
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What does the alveolar margin contain?
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What divides the nasal cavities?
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What is the auricle a part of?
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What is the role of the tympanic membrane?
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Study Notes
Anatomy of the Face, Ear, and Mouth
- The inferior orbital fissure is an opening within each orbit formed by the maxillae and sphenoid bone.
- The infraorbital foramen is an opening under each orbit for the passage of infraorbital nerves and vessels.
- The alveolar margin is the oral margin of the maxillae that contains the upper teeth.
- The nose includes the external nose and nasal cavity and functions in smell, humidification, respiration, filtration, reception, and eliminating secretions through paranasal sinuses and nasolacrimal ducts.
- The external nose consists of cartilage and skin, with nerve supply from the trigeminal nerve (CNV1).
- The nasal cavities are divided by the nasal septum and lined with mucous membrane, featuring three projecting conchae (turbinates) for air cleansing and temperature control.
- Paranasal sinuses, including the ethmoid, sphenoid, frontal, and maxillary sinuses, lighten the weight of the skull and are palpable during physical exams.
- Olfaction involves the olfactory epithelium, olfactory nerves (CNI), bulbs, and tract, contributing to the sense of smell in the cerebrum.
- The ear is responsible for hearing and equilibrium and comprises the external, middle, and inner parts.
- The external ear consists of the auricle, external acoustic meatus, and tympanic membrane, while the middle ear amplifies sound and includes the auditory ossicles and the pharyngotympanic (Eustachian) tube for pressure equalization.
- The inner ear consists of the bony and membranous labyrinths, serving acoustic and vestibular functions for equilibrium.
- The lips and mouth are controlled by a series of muscles, with the oral cavity lined with mucous membrane and featuring openings for salivary gland ducts, innervated by the trigeminal nerve (CN V).
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Description
Test your knowledge of the anatomy of the face, ear, and mouth with this quiz. Explore the structures and functions of the nasal cavity, paranasal sinuses, olfactory system, external, middle, and inner ear, and the muscles and mucous membrane of the oral cavity.
