Hanna-Triangles Word Scramble
E M I L D A
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| Question | Answer |
| Location of structures in Carotid Sheath | Medial: Common Carotid A. (int carotid A superiorly) Lateral: Internal jugular V. Posterior: Vagus N. |
| Anterior Veins of neck (Anterior to Sternocleidomastoid) | 1.Ext Jugular V. (Angle of mandible to subclavian V) 2.Communticating V (connects Ext Jugular to Ant Jugular vein). 3.Anterior Jugular V (anterior midline of neck, moves laterally at clavicle deep to SCM to empty into Ext Jugular V). |
| Carotid Body | 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). |
| Carotid Sinus | Dilation of proximal part of internal carotid A. Innervated by CN IX and CN X. **Important Barroreceptor for BP regulation. |
| Erb's Point (Punctum Nervosum) | Location where the nerves are exiting the neck, Would case severe pain if hit here. |
| Anterior Branches off External Carotid A. (in order) | 1.Superior Thyroid A (first branch off ECA). 2.Lingual A.(just superior to Sup. Thy. A). 3.Facial A. (either in common ith Lingual A or immediately superior). |
| Muscles of the vertebral compartment(posterior to visceral compartment) | 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 |
| Suprahyoid muscles | Superior to hyoid, involved in swallowing and speech via elevating the hyoid bone. |
| Anterior Triangle | Boundaries: Median line of neck, SCM, mandible. Can be divided into: Submental, Submandibular, carotid, and muscular triangles |
| Contents of Subclavian Triangle | 1. Ext jugular V. 2. Occipital A. (posterior branch of EJV). 3. Subclavian A and V (3rd/lateral part) |
| Scalene Interval | Between Ant. and Middle Scalene. Both the brachial plexus and subclavian A exit here. **they are slightly more protected |
| Investing fascia | most superficial, associated closely with platysma m. |
| Contents of Submandibular Triangle | 1.submandibular gland. 2.Mylohyoid M. 3.Hypoglossus M. 4.Middle Pharyngeal constrictor M. 5.Hypoglossal N. 6.N to mylohyoid. 7.Facial A and V. 8.Submental A. |
| 3 different compartments of the neck and their associated Cervical Fascia | 1.Vertberal: Prevertebral fa.(surrounds vertebral column and associated muscles). 2.Visceral: Pretracheal fa.(surrounds thyroid, parathyroid, trachea, esophagus). 3.Vascular: Alar fa.(Common/Internal carotid A, Int Jugular V, Vagus N)**Carotid Sheath |
| Retropharyngeal space | 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. |
| Loops of Ansa Cervicalis | Superior C1-2: innervates Geniohyoid and Thyrohyoid muscles.**Also gets fibers from CNXII. Inferior: C3-4 innervates infrahyoid muscles |
| Some Aggressive Lovers Find Odd Positions More Stimulating | Branching pattern of ECA: SThyA, APA, LA, FA,OA,PAA, MA, STempA |
| Posterior Triangle (Lateral Cervical region) | Boundaries: SCM, Trapezius, clavicle. Can be divided into: Occipital triangle and subclavian triangle. |
| Does the internal Carotid Artery branch in the neck? | NO! C'mon man |
| Anterior Rami of Cervical Plexus | Motor Nerves. The Phrenic N (C3-5), Ansa Cervicalis (C1-4). |
| Contenst of Carotid Triangle | Carotid sheath, Ansa Cervicalis, Deep cervical lymph nodes. **Bifrication of common carotid as most of the branches of the External Carotid A. |
| Posterior Branches off the External Carotid A. (in order) | 1.Ascending Pharyngeal A.(More medial than posterior) 2.Occipital A. 3.Posterior Auricular A (last preterminal Branch off ECA). |
| Terminal Branches of External Carotid A | 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). |
| Posterior fibers of cervical plexus | Sensory nerves: Lesser occipital (C2, ascends up occipital bone), Greater Auricular (C2-3, ascends up to ear), Transverse cervical (C2-3, transversely across neck), Supraclavicular (C3-4, descend and run superior to clavicle). |
| Sternocleidomastoid region | Contains SCM m., Ext Jugular V, Greater Auricular N, Transverse cervical N. |
| Infrahyoid muscles | inferior to hyoid, involved in swallowing via depression of the hyoid bone. |
| Branches from 1st part (medial) of Subclavian A. | 1.Vertebral A. 2.Thyrocervical Trunk. 3.Internal Thoracic A. |
| Contents of Occipital triangle | 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). |
| Ansa Cervicalis is embedded in what fascia? | Anterolateral Carotid Sheath/Alar Fascia |
| Parts of the Subclavian A. | 1st: medial to Ant. scalene. 2nd: posterior to Ant.scalene. (Costocervical Trunk branches off) 3rd: lateral to Ant. Scalene |
| Important structures Anterior to Anterior Scalene | 1.Phrenic N. 2.Suprascapular A. 3.Transverse Cervical A. 4.Subclavian V. **Makes them prone to injury |
| Branches from 3rd part (lateral) of Subclavian A. | 1.Transverse cervical A. 2.Suprascapular A. (if it doesn't come off thyrocervical trunk). |
| Posterior cervical region | Contains Trapezius m., cutaneous branches of posterior rami, suboccipital triangle (Deep) |
| Contents of Submental Triangle | submental lymph nodes, Anterior jugular v, Mylohyoid muscle. |
Created by:
WeeG
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