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21 Cards in this Set
- Front
- Back
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Where is the Submental Triangle of the neck?
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Floor: mylohyoid muscle
Submental lymph nodes Anterior jugular veins |
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Submandibular Triangle
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Submandibular lymph nodes
Submandibular gland Hypoglossal nerve Parotid gland (posterior) |
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Carotid Triangle
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Submandibular lymph nodes
Submandibular gland Hypoglossal nerve Parotid gland (posterior) |
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Visceral Triangle
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Submandibular lymph nodes
Submandibular gland Hypoglossal nerve Parotid gland (posterior) |
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What vertebrae do the thyroid cartilage and the cricoid cartilage correspond with?
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T: C4-5
C: C6 |
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Submandibular Triangle contains . . .
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facial artery (CN XII), submandibular gland; digastric, hyoglossus, mylohyoid muscles
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Carotid Triangle contains . . .
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external jugular vein, investing fascia, carotid sheath
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Muscular triangle contains . . .
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the strap muscles
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Submental triangle contains . . .
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?? nothing listed on notes.
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What is the platysma responsible for? What innervates it?
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Facial expression! CN VII
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What is the preferred site of a trachesotomy?
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Tracheal cartilages 2-4 (below cricoid cartilage and sithmus of the thyroid)
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Which is more superficial, the investing layer or the platysma?
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Platysma!
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Where do the anterior jugular veins lie, and where do they go?
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Lie in the midline. Run from submental triangle, pierce deep fascia above manubrium.
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List the superficial cranial nerves and describe their location.
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1. Great auricular, transverse cervical,supraclavicular (all sensory).
2. Cervical branch of CN VII. (motor) |
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Name and location of the infrahyoid muscles.
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Strap muscles:
1. Omohyoid: From hyoid to shoulder 2. Sternohyoid: From hyoid to sternum 3. Sternothyroid: 4. Thyrohyoid (listed superficial to deep) All innervated by C1-C3 |
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Blood supply to the thyroid gland comes from:
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External carotid artery ---> superior thyroid thyroid a.
Subclavian ---> thyrocervical trunk ---> inferior thyroid a. |
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What is the Thyroid Ima Artery? What is it's prevalence?
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A branch from the brachiocephalic artery or the arch of the aorta. Occurs in 10% of the population.
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Describe the thyroid venous plexus.
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Usually drains to the inferior thyroid vein ---> LEFT brachiocephalic vein ----> superior vena cava. Also drains to the internal jugular vein.
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Origin and clinical significance of the thyroglossal duct cysts
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Originates at the foramen cecum (on the back of the tongue). Form when aberrant thyroid tissue lodges in the thyroglossal duct.
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Origin and clinical significance of cervical fistulas
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An abnormal internal canal that opens into the tonsillar fossa. Saliva may drip into the fistula and become infected.
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Origin of sinus remnant
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Failure of embryonic cervical sinus fails to disappear, can retain a connection on the side of the neck called a branchial sinus. Exists anywhere along the anterior border of the SCM. If one part not connected to other tissue, may become a cyst.
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