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24 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Platysma
Action, Innervation |
Action:
- Moves angles of the mouth inferiorly, eg when sad, anxious or frightened. - From above, produces ridges in skin which releases pressure on underlying veins. - From below, assists in depressing mandible. Innervation: - Cervical branch of facial nerve (CN VII) |
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Sternocleidomastoid
Action, Innervation |
Action:
- Bilaterally, flexes the neck. - Unilaterally, flexes neck laterally and rotates it in the opposite direction. Innervation: - Accessory Nerve (CN XI) - Fibres from ventral rami C2, C3 (pain and proprioception) |
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Trapezius
Action, Innervation |
Action:
- Superior fibres elevate scapula. - Middle fibres retract scapula. - Inferior fibres depress scapula. Innervation: - Accessory Nerve (CN XI) - Fibres from ventral rami C2, C3 (pain and proprioception) |
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Stylohyoid
Action, Innervation |
Action:
- Elevates and retracts the hyoid during swallowing, thus elongating floor of mouth. Innervation: - Posterior auricular nerve (branch of facial nerve CN VII) |
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Mylohyoid
Action, Innervation |
Action:
- Elevates the hyoid during swallowing. - When the hyoid is fixed it assists in opening the jaw. Innervation: - Mylohyoid nerve (Branch of CN V3) |
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Geniohyoid
Action, Innervation |
Action:
- Pulls hyoid anterosuperiorly - Shortens floor of mouth - Widens pharynx Innervation: - C1 via hypoglossal nerve (CN XII) |
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Digastric
Action, Innervation |
Action:
- Depresses mandible against resistance. - Elevates and steadies hyoid during swallowing and speaking Innervation: - Anterior Belly: - Mylohyoid nerve (Branch of inferior alveolar nerve) - Posterior Belly: - Digastric branch of (preparotid) facial nerve (CN VII) |
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Sternohyoid
Action, Innervation |
Action:
- Depresses hyoid after elevation during swallowing Innervation: - C1-C3 by branch of ansa cervicalis |
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Omohyoid
Action, Innervation |
Action:
- Depresses, retracts and steadies hyoid. Innervation: - C1-C3 by branch of ansa cervicalis |
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Sternothyroid
Action, Innervation |
Action:
- Depresses hyoid and larynx Innervation: - C2, C3 by branch of ansa cervicalis |
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Thyrohyoid
Action, Innervation |
Action:
- Depresses hyoid and elevates larynx Innervation: - C1 via hypoglossal nerve (CN XII) |
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Name the Suprahyoid Muscles
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- Mylohyoid
- Geniohyoid - Stylohyoid - Digastric |
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Name the Infrahyoid Muscles
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- Sternohyoid
- Omohyoid - Sternothyroid - Thyrohyoid |
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Carotid Sheath Contents
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"I See 10 CC's in the IV":
Internal Carotid artery CN X (Vagus nerve) Common Carotid artery Internal Jugular Vein |
"I See 10 CC's in the IV"
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Internal Jugular Vein Tributaries
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"Medical Schools Let Confident People In":
• From inferior to superior: Middle thyroid Superior thyroid Lingual Common facial Pharyngeal Inferior petrosal sinus |
"Medical Schools Let Confident People In"
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Superior thyroid artery branches
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"May I Softly Squeeze Charlie's Girl?":
Muscular Infrahyoid Superior laryngeal Sternomastoid Cricothyroid Glandular |
"May I Softly Squeeze Charlie's Girl?"
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Pharynx vs. larynx
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Eat Phood with your Pharynx.
Sing La La La with your Larynx. |
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Thyroid: isthmus location
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"Rings 2,3,4 make the isthmus floor":
Isthmus overlies tracheal rings 2,3,4 |
"Rings 2,3,4 make the isthmus floor"
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Maxillary artery branches
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"DAM I AM Piss Drunk But Stupid Drunk I Prefer, Must Phone Alcoholics Anonymous":
Deep auricular Anterior tympanic Middle meningeal Inferior alveolar Accessory meningeal Masseteric Pterygoid Deep temporal Buccal Sphenopalatine Descending palatine Infraorbital Posterior superior alveolar Middle superior alveolar Pharyngeal Anterior superior alveolar Artery of the pterygoid canal |
"DAM I AM Piss Drunk But Stupid Drunk I Prefer, Must Phone Alcoholics Anonymous"
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Hyoid bone: muscle attachments
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"Christ, He Didn't Screw Girls Much. That's Obvious, Stupid":
• The first sentence is for 6 muscles attaching superiorly, the second sentence is for 3 muscles attaching inferiorly. • Both sentences are in order from lateral to medial: Constricter (middle) Hyoglossus Digastric Stylohyoid Geniohyoid Myloyoid Thyrohyoid Omohyoid Sternohyoid |
"Christ, He Didn't Screw Girls Much. That's Obvious, Stupid"
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Cervical vertebra: landmarks at each level
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"NoaH Told MariaH To Try Cervical Counting":
Nose (base), Hard palate: C1 Teeth: C2 Mandible, Hyoid bone: C3 Thyroid cartilage (upper): C4 Thyroid cartilage (lower): C5 Cricoid cartilage: C6 Cricoid cartilage (just below): C7 |
"NoaH Told MariaH To Try Cervical Counting"
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Ansa cervicalis nerves
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"GHost THought SOmeone STupid SHot Irene":
Geniohyoid Thyrohyoid Superior Omohyoid Sternothyroid Sternohyoid Inferior omohyoid |
"GHost THought SOmeone STupid SHot Irene"
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External jugular vein: tributaries
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PAST:
Posterior external jugular vein Anterior jugular vein Suprascapular vein Transverse cervical vein |
PAST
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External carotid artery branches
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"Suzy Always Lays Flat On Pillows Making Sex Terrific":
Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Maxillary Superificial Temporal |
"Suzy Always Lays Flat On Pillows Making Sex Terrific"
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