Podcast
Questions and Answers
Which of the following structures provides rigidity to the upper eyelid?
Which of the following structures provides rigidity to the upper eyelid?
Which artery provides arterial supply to the eyelids?
Which artery provides arterial supply to the eyelids?
Which one of the following is true about the lacrimal gland?
Which one of the following is true about the lacrimal gland?
Which of the following is true about the drainage apparatus of the lacrimal apparatus?
Which of the following is true about the drainage apparatus of the lacrimal apparatus?
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Which bone is not a part of the nasal cavity?
Which bone is not a part of the nasal cavity?
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Which of the following is true about the paranasal sinuses?
Which of the following is true about the paranasal sinuses?
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Which bone forms the skeletal core of the soft palate?
Which bone forms the skeletal core of the soft palate?
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Which muscle governs mastication?
Which muscle governs mastication?
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Which nerve innervates the pharyngeal muscles?
Which nerve innervates the pharyngeal muscles?
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What is the C-shaped space bounded by several ligaments and cartilages called?
What is the C-shaped space bounded by several ligaments and cartilages called?
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Which muscle is not included in the suprahyoid muscles?
Which muscle is not included in the suprahyoid muscles?
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Which nerve innervates the intrinsic muscles of the larynx?
Which nerve innervates the intrinsic muscles of the larynx?
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Study Notes
- The eyelids consist of skin, subcutaneous tissue, voluntary muscle, orbital septum, tarsus, smooth muscle, and conjunctiva.
- The upper tarsus provides rigidity to the upper lid.
- The angular branch of the facial artery provides arterial supply to the eyelids.
- The veins of the eyelids are larger and more numerous than the arteries.
- The lacrimal apparatus consists of a secretory portion, the lacrimal gland, its ducts, the drainage apparatus, the lacrimal canaliculi and sac, and the nasolacrimal duct.
- The lacrimal gland is partially divided into two portions.
- The lacrimal gland is in contact anteriorly with the orbital septum.
- The lacrimal gland's ductules run through the orbital part of the gland.
- The lacrimal drainage system includes the lacrimal canaliculi and sac, and the nasolacrimal duct.
- Infections in the areas of the eyelids or periorbital abscesses can put patients at risk of cavernous sinus thrombosis.
- The nasal cavity is formed by several bones, including the maxilla, palatine bone, vomer, and ethmoid bone.
- The lateral nasal wall is formed by nasal turbinates and meatuses provide drainage.
- The arterial supply to the nasal cavity comes from internal and external carotid sources and anastomotic networks.
- Paranasal sinuses include the frontal, ethmoid, maxillary, and sphenoid sinuses.
- The degree of pneumatization of the frontal sinuses varies.
- The ethmoid sinuses consist of separate cavities that honeycomb the ethmoid bone.
- Anterior ethmoid cells are divided into frontal recess cells, infundibular cells, and bullar or middle ethmoid cells.
- Posterior ethmoid cells drain into the superior meatus.
- The sphenoid sinus usually opens into the sphenoethmoidal recess.
- The ostium of the sphenoid sinus is usually in the posterior wall of the recess.
- The palate separates the nasal and oral cavities.
- It consists of the maxilla, palatine bone, and pterygoid plates.
- Soft tissues form the hard and soft palates.
- The skeletal core of the soft palate is the palatine aponeurosis.
- The mandible consists of the tooth-bearing body and ramus.
- The masseter, temporal, and pterygoid muscles govern mastication.
- The hyoid bone separates the anterior suprahyoid and infrahyoid fascial compartments.
- The suprahyoid muscles include the digastric, stylohyoid, mylohyoid, and geniohyoid muscles.
- The intrinsic muscles of the tongue are complicated bundles of interlacing fibers.
- The submandibular gland occupies most of the submandibular triangle.
- The larynx consists of the thyroid and cricoid cartilages.
- The pharynx contains the superior, middle, and inferior constrictor muscles.
- The pharyngeal muscles are innervated by cranial nerve X.
- Dehiscence in the pharyngeal constrictors may give rise to Zenker diverticula.
- The preepiglottic space is a C-shaped space bounded by several ligaments and cartilages.
- The paired arytenoid cartilages provide an attachment for the vocal ligament and movement of the vocal folds.
- The intrinsic muscles of the larynx are innervated by the recurrent laryngeal nerve.
- The neck is divided into anterior and posterior triangles by the sternocleidomastoid muscles.
- The anterior triangle of the neck may be further delimited by the strap muscles into the superior and inferior carotid triangles.
- The posterior triangles or lateral triangles of the neck are formed by the posterior border of the sternocleidomastoid muscle anteriorly, the clavicle inferiorly, and the anterior border of the trapezius muscle.
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Description
How well do you know the anatomy of the head and neck? Test your knowledge with this quiz that covers topics such as the eyelids, lacrimal apparatus, nasal cavity, paranasal sinuses, palate, mandible, hyoid bone, tongue, submandibular gland, larynx, pharynx, and neck triangles. From the arterial supply to the nasal cavity to the innervation of the larynx, this quiz will challenge your understanding of the intricate structures and