Hanna-Triangles
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| 3 different compartments of the neck and their associated Cervical Fascia | show 🗑
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| show | most superficial, associated closely with platysma m.
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| show | Located between the posterior Pretracheal fascia and the anterior Prevertebral fascia. Buccopharyngeal fascia is found here. Allows movement of visceral comp. on top of vertebral comp. **Allows spread of infection to superior mediastinum.
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| Location of structures in Carotid Sheath | show 🗑
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| show | Anterolateral Carotid Sheath/Alar Fascia
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| Carotid Sinus | show 🗑
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| show | Ovoid mass locatde deep to bifrication of Common Carotid A. Innervated by CN IX and X. **Important Chemoreceptor for BL pH (Increase or decrease respiration to avoid acidosis or alkanosis).
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| show | inferior to hyoid, involved in swallowing via depression of the hyoid bone.
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| show | Superior to hyoid, involved in swallowing and speech via elevating the hyoid bone.
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| show | Surrounded by Prevertebral fascia.
1.Longus Capitis (O: occipital bone).
2.Longus Colli (O: C1 anterior tubercle).
3. Rectus Capitis Anerior (O: ant. to occipital condyle).
4.Rectus Capitis Lateralis (O: jugular process of occipital bone).
5.Scalenes
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| Scalene Interval | show 🗑
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| show | 1.Phrenic N.
2.Suprascapular A.
3.Transverse Cervical A.
4.Subclavian V.
**Makes them prone to injury
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| show | 1st: medial to Ant. scalene.
2nd: posterior to Ant.scalene. (Costocervical Trunk branches off)
3rd: lateral to Ant. Scalene
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| Branches from 1st part (medial) of Subclavian A. | show 🗑
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| Branches from 3rd part (lateral) of Subclavian A. | show 🗑
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| show | NO! C'mon man
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| show | 1.Ascending Pharyngeal A.(More medial than posterior)
2.Occipital A.
3.Posterior Auricular A (last preterminal Branch off ECA).
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| Anterior Branches off External Carotid A. (in order) | show 🗑
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| show | 1.Maxillary A (originates within the parotid gland, moves anteriorly deep to condylar neck of mandible to reach infratemporal fossa).
2.Superficial Temporal A (gives off a transverse facial A and then passes anteriorly to ext. auditory meatus).
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| Some Aggressive Lovers Find Odd Positions More Stimulating | show 🗑
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| Anterior Veins of neck (Anterior to Sternocleidomastoid) | show 🗑
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| Posterior fibers of cervical plexus | show 🗑
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| Erb's Point (Punctum Nervosum) | show 🗑
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| show | Motor Nerves. The Phrenic N (C3-5), Ansa Cervicalis (C1-4).
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| show | Superior C1-2: innervates Geniohyoid and Thyrohyoid muscles.**Also gets fibers from CNXII.
Inferior: C3-4 innervates infrahyoid muscles
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| show | Contains Trapezius m., cutaneous branches of posterior rami, suboccipital triangle (Deep)
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| show | Contains SCM m., Ext Jugular V, Greater Auricular N, Transverse cervical N.
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| show | Boundaries: SCM, Trapezius, clavicle.
Can be divided into: Occipital triangle and subclavian triangle.
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| show | 1.Spinal accessory n.
2.Erb's point (cervical plexus).
3.Trunks of brachial plexus.
4.Transverse cervical A (off the 3rd/lateral part of subclavian).
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| show | 1. Ext jugular V.
2. Occipital A. (posterior branch of EJV).
3. Subclavian A and V (3rd/lateral part)
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| Anterior Triangle | show 🗑
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| show | submental lymph nodes, Anterior jugular v, Mylohyoid muscle.
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| Contents of Submandibular Triangle | show 🗑
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| Contenst of Carotid Triangle | show 🗑
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Created by:
WeeG
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