BIO201 - Ch 10 - Muscular System Face & Head - Marieb/Hoehn - Rio Salado - AZ
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| Another name for the "facial nerve" is? | Cranial Nerve VII
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| Name 2 muscles of the epicranius (scalp). | 1. Frontal belly (frontalis) raises eyebrows & wrinkles forehead, (2) Ocipital belly (ocipitalis) pulls scalp posteriorly.
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| Which scalp muscle raises eyebrows? | Frontal Belly - Frontalis - Facial nerve
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| Which facial muscle draws eyebrows together & wrinkles forehead in frowning? | corrugator Supercilii - Faical nerve
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| Which facial muscle for blinking, squintin, & inserts tissue of eyelid | Orbicularis Oculi - Facial Nerve
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| Which muscle raises lateral corners of mouth up into smile? | Zygomaticus - cheekbone to corner of mouth - o=zygomatic, I=corner of mouth
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| Which muscle tenses lips? | Risorius - "laughter" - I=skin@angle of mouth, N=Facial Nerve
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| Which muscle opens lips? | Levator labii superior, "raise" "lip" "superior - I=Skin & muscle of upper lip, N=Facial Nerve
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| Which muscle to pout lips? | Depressor labii inferioris-"lower" "lip" "inferior" - I=skin & muscle @angle of mouth, N=Facial Nerve.
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| Which muscle to close lips, kiss, & whistle? | Orbicularis oris - circular muscle around mouth - N=Facial Nerve.
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| Which muscle protrudes lower lip & wrinkles chin? | Mentalis - forms V-shped musc. on chin-I=Skin@chin, N=Facial Nerve
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| The 4 pairs of muscles for mastication are all innervated by? | Trigeminal nerve-Cranial Nerve V
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| Intrinsic tongue muscles | Do not move tongue, but curls, squeeze & folds tongue for speaking & chewing.
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| Extrinsic tongue muscles | Anchor & move tongue - Innervated by Hypoglossal Nerve.
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| Masseter | Prime mover of jaw closure: elevates mandible. N=Trigeminal Nerve.
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| Role of temporalis muscle | Closes jaw - elevates mandible - Fan-shaped, maintains position of mandible @ rest - synergist of pterygoids, N=Trigeminal Nerve.
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| Which 2 muscles help synergist to move mandible to grinding - side-to-side movement? | Medial & lateral pteryoid muscles - both 2 headed - O=shenoid bone, N=Trigeminal Nerve.
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| Name 3 extrinsic muscles of tongue. | Genioglossus, hyoglossus & styloglossus - each N=Hypoglossal Nerve.
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| Neck is divided into 2 triangles by what? | Sternocleidomastoid muscle - anterior/posterior triange.
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| The anterior triangle of neck divided into which 2 muscles? | Suprahyoid & infrahyoid muscles.
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| Which 2 muscles begin swallowing? | Tongue & buccinator
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| The widening of pharynx to receive food & closing of larynx to prevent choking done by? | Suprahyoid muscles that pull hyoid bone.
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| Food is propelled through pharynx into esophagus by? | Pharyngeal constrictor muscles - 3 paired muscles - Peristalsis.
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| Name the 4 suprahyoid muscles. | Diagastric, stylohyoid, mylohyoid, & geniohyoid.
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| Which muscle promotes tongue movement? | Hyoglossus muscle
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| Name the 5 infrahyoid muscles | sternohyoid, sternothyroid, omohyoid, thyrohyoid, & pharyngeal constrictor muscles.
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| The head is moved by muscles originating from? | Axial skeleton
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| The major head flexors are the __. | Sternocleidomastoid muscles - also tilts laterally. N=Accessory nerve & c2,c3 Nerves.
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| Which muscles bear most responsibility for head extension? | Splenius - bandage muscle (capitus portion), N=cervical spinal nerves.
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