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30 Cards in this Set
- Front
- Back
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What might be seen from facial nerve damage?
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Cranial VII - mimetic muscles
Unilateral damage - face twists towards uninjured side = unopposed muscle contraction on goood side. Damaged side jaw ear drops. |
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What might be seen from paralysis of auriculpalpebral branch of facial nerve?
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Result: droopy ear, inability to move eyelid
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Name the muscles of mastication
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Masseter - close
Temporalis - close Digastricus - open Pterygoid - close |
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Name important branches of the Trigeminal Nerve.
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Ophthalmic - sensory to forehead, medial eyelid and eye
Maxillary - sensory to nose, lateral eye, cheek upper lip and maxillary teeth Mandibular; sensory to lower jaw motor to masticatory |
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What does Cranial Nerve VII innervate?
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Sensory - taste sense
Motor - mimetic muscles/facial expression |
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Which bone of the Hyoid Apparatus is unpaired?
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Basihyoid
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Whast is the function of the hyoid apparatus?
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Suspends larynx and tongue from temporal skull
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Why is the Sternohyoideus Muscle important clinically?
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Muscle must be split to gain access to trachea eg. emergency tracheostomy.
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Name the three areas of the tongue
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Root, Body and Apex
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List functions of the tongue
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Eating, Drinking, Grooming **Heat Exchange** (generous blood supply)
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Name the two groups of tongue muscles.
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Intrinsic and Extrinsic
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Which nerve supplies the extrinsic tongue muscles?
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Hypoglossal Nerve
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Name the Extrinsic Tongue Muscles.
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Styloglossus, Hyoglossus, Genioglossus
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What is the function of the intrinsic tongue muscles?
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Change shape, tongue mobility
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What are the components of saliva?
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water, protein, glycoprotein, electrolytes and antibodies.
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Where clinically would you find lymph nodes?
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Rostral to salivary glands.
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Name the Salivary Glands
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Parotid
Mandibular Zygomatic Sublingual |
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Which salivary glands may get confused with a lymph node.
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Mandibular Salivary Glands
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Which duct can be redirected to treat dry eye?
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Parotid Duct
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What does Polystomatic mean and which salivary gland is polystomatic?
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Multiple openings - Sublingual Salivary Glands.
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Name the three groups of pharyngeal muscles.
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Constrictors, Dilators and Shorteners
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What is the nerve supply to the pharyngeal muscles?
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Vagus (X) and Glossopharyngeal (IX)
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What are the palatoglossal arches?
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Folds of mucous membrane, mark entry into the oropharynx.
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What is the clinical significance of palatoglossal arches?
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Cats - oral cavity disease can become severly inflamed.
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Which region of the pharynx contains the eustachian tubes?
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Nasopharynx
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What lies between the Brachiocephalicus and the Sternocephalicus?
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The Jugular Groove/Furrow*Important landmoark for blood sampling.
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Name the important muscles of the neck.
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Epaxial, Hypaxial, Sternocephalicus, Brachiocephalicus, Omotransversarius,Sternothyroideus.
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What is the action of the omotransversarius?
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Moves the neck from side to side.
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What lies under the muscles of the neck?
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Deep layer of fascia.
Carotid Sheath - contains common carotid and internal jugular vein *scary* |
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Where does omotransversarius lie?
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Underneath brachiocephalicus.
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