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31 Cards in this Set
- Front
- Back
Divisions of the Trigeminal Nerve
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Opthalmic (CN V1)
Maxillary (CN V2) Mandibular (CN V3) |
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CN V3 characteristics
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Mandibular division of Trigeminal/CN V:
Only division of CN V containing motor fibers (supply muscles of mastication, tensor muscles of the palate & tympanic membrane, mylohyoid and anterior belly of the digastric in floor of the oral cavity/) Divides into anterior & posterior divisions. |
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Branches of Trigeminal nerve
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-Supraorbital n. (V1)
-Greater Palatine n. (V2) -Nasopalatine n. (V2) -Inferior Alveolar n. (V3) -Auriculotemporal n. (V3) -Lingual n. (V3) (All V3 branches above come from posterior division of Mandibular/CN V3) |
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Posterior Cervical Triangle Boundaries
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base: middle section of the clavicle;
posterior: trapezius anterior: sternomastoid (SCL). roof: formed by the skin, superficial fascia (w/part of platysma), & the investing fascia with the spinal accessory nerve (CN XI) in it The floor: Splenius capitis Levator scapulae Scalenes (Anterior, Posterior, Middle) (covered with prevertebral fascia) |
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Contents of Posterior Cervical Triangle
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Spinal Accessory nerve
Omohyoid muscle External Jugular vein Axillary vein R. subclavian artery occipital artery brachial plexus (roots/trunks) lesser occipital nerve great auricular nerve transverse cervical nerve supraclavicular nerves lymph nodes |
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Anterior Cervical Triangle boundaries
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superiorly: lower border of the body of the mandible;
posteriorly: anterior border of the sternomastoid; anteriorly: midline extending from the chin to the sternal notch in the manubrium |
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Anterior Cervical Triangle subdivisions
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1) submandibular triangle
-body of mandible & digastric muscle (both bellies.) 2) carotid triangle -sternomastoid, posterior belly of digastric, and the superior belly of omohyoid. 3) The muscular triangle -superior belly of omohyoid, the lower anterior margin of sternomastoid, and the midline of the neck. 4) submental triangle -anterior bellies of R&L digastric muscles, and the body of the hyoid. |
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Anterior Cervical Triangle contents
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[subdivisions and contents]
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Terminal Branches of the Brachial Plexus
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1) Musculocutaneous n.
2) Ulnar n. 3) Axillary n. 4) Radial n. 5) Median n. |
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Musculocutaneous N.
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(from Lateral cord of brachial plexus)
Coracobrachialis, Biceps Brachii, Brachialis |
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Ulnar n.
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(from Medial cord of brachial plexus)
flexor carpi ulnaris, medial 1/2 of flexor digitorum profundus, |
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Axillary n.
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(from posterior cord of brachial plexus)
deltoid, teres minor |
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Radial n.
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(from posterior cord of brachial plexus)
triceps brachii, brachioradialis, extensor carpi ulnaris, supinator, abductor pollicis longus, extensor(s) pollicis longus&brevis, extensor carpi radialis longus&brevis, extensor(s) digitorum & digiti minimi, extensor indicis |
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Median n.
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(2 median roots combined)
pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, lateral 1/2 of flexor digitorum profundus, flexor pollicis longus, pronator quadratus |
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Compartments of the leg
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1) Anterior compartment
-Tibialis anterior -Extensor digitorum longus -Peroneus tertius -Extensor Hallucis longus 2) Lateral compartment -Peroneus longus -Peroneus brevis 3)Posterior compartments -Gastrocnemius -Soleus -Plantaris -Popliteus -Flexor digitorum longus -Flexor hallucis longus -Tibialis posterior |
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Blood supply to Leg
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Anterior compartment: Anterior Tibial artery
Lateral compartment: Peroneal (fibular) circumflex artery Posterior compartment: Posterior Tibial a. & Peroneal a. Venous: great and lesser saphenous veins |
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Divisions of the Mediastinum
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*Superior
*Inferior: -anterior -middle -posterior *separated by trans-thoracic plane |
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Contents of Superior Mediastinum
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thymus gland (or remnant)
great vessels of heart ligamentum arteriosum 3 branches of aortic arch phrenic nerves vagal nerves L. recurrent laryngeal nerve trachea esophagus cardiac plexuses |
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Contents of Inferior Mediastinum
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(Anterior:) thymus gland
(Middle:) heart & pericardial sac (Posterior:) -Descending aorta -Thoracic duct -Esophagus -Vagus nerves -Azygos system of veins -Greater sphlanchnic nerve -intercostal vessels |
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Nerve supply to Nasal cavity
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CN I (olfactory): Special sensory
CN V1: (sensory) ethmoid, sphenoid, & frontal sinuses; superior & middle conchae CN V2 (sensory) maxillary sinus, palate & inferior concha Parasympathetic: from facial nerve; preganglionic fibers in greater petrosal n (postganglionic after pterygopalatine ganglion) Symmpathetic: postganglionic fibers in deep petrosal nerve |
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Nerve supply to salivary glands
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(Parasympathetic)
Parotid: CN IX (Glossopharyngeal n.) Submandibular & Sublingual: CN VII (chorda tympani branch) (sympathetic) motor fibers from carotid plexus for vasoconstriction |
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Nerve supply to Lacrimal gland
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lacrimal nerve (CN V1) (sensory), the great petrosal nerve (CN VII) (parasympathetic);
sympathetic nerves accompanying the lacrimal artery and the lacrimal nerve. |
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Surface Anatomy of right Lung
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-Three lobes, 10 segments
-oblique fissure -horizontal fissure (superior, divides upper from middle) |
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Surface Anatomy of left Lung
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-Two lobes, 8 segments
-oblique fissure -cardiac notch -lungula -cardiac impression/grooves |
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Surface anatomy on both lungs
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oblique fissure
apex & base hilum visceral pleura |
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Respiratory Tree
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Primary (main stem) bronchi
Secondary (lobar) bronchi Tertiary (segmental) bronchi Terminal bronchioles (branches of segmental bronchi) Respiratory bronchioles (contain alveoli) Alveoli (single cell in thickness; organized in clusters; surrounded by dense capillary network) |
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Main stem Bronchi differences
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Right: larger diameter, shorter, more vertical
Left: smaller diameter, longer, less vertical |
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Subdivisions of Pharynx
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Nasopharynx
Oropharynx Laryngopharynx |
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Contents of Nasopharynx
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choanae
pharyngeal tonsils torus tubaris pharyngeal recess |
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Contents of Oropharynx
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Palatoglossal fold,
Median & Lateral glossoepiglottic folds, Valleculae |
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Contents of Laryngopharynx
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Laryngeal aditus
cricoid cartilage piriform recesses |