{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "name": "M. Masseter — surface EMG electrode placement",
    "id": "masseter_r",
    "slug": "masseter-r",
    "url": {
        "en": "https://emgguide.de/muscle/masseter-r",
        "de": "https://emgguide.de/de/muscle/masseter-r",
        "viewer3d": "https://emgguide.de/?muscle=masseter_r",
        "json": "https://emgguide.de/muscle/masseter-r.json"
    },
    "names": {
        "latin": "M. Masseter",
        "en": "Masseter",
        "de": "Großer Kaumuskel"
    },
    "side": "right",
    "region": {
        "key": "HEAD_NECK",
        "en": "Head & Neck",
        "de": "Kopf & Nacken"
    },
    "placementStandard": "adapted from peer-reviewed literature (see source)",
    "source": {
        "short": "Criswell 2011",
        "citation": "Criswell E. Cram's Introduction to Surface Electromyography. 2nd ed. Jones & Bartlett Learning; 2011. ISBN 978-0-7637-3274-5."
    },
    "electrode": {
        "position": {
            "en": "Over the muscle belly at the angle of the jaw — palpate while the person clenches the teeth and place the electrodes over the clearly protruding belly",
            "de": "Über dem Muskelbauch am Kieferwinkel — beim Zusammenbeißen der Zähne tasten und die Elektroden über dem deutlich hervortretenden Bauch platzieren"
        },
        "orientation": {
            "en": "Along the muscle fibres, 2 cm inter-electrode distance; place the pairs symmetrically when comparing sides",
            "de": "Entlang des Faserverlaufs, Elektrodenabstand 2 cm; beim Seitenvergleich auf spiegelbildliche Platzierung achten"
        },
        "sensorRules": "bipolar Ag/AgCl, ≤ 10 mm conductive diameter, 20 mm inter-electrode distance, parallel to fibres, reference electrode on bone (SENIAM)"
    },
    "landmarks": null,
    "anatomy": {
        "function": {
            "en": "Jaw closure (elevation of the mandible), grinding during mastication",
            "de": "Kieferschluss (Elevation der Mandibula), Mahlbewegung beim Kauen"
        },
        "origin": {
            "en": "Zygomatic arch",
            "de": "Arcus zygomaticus (Jochbogen)"
        },
        "insertion": {
            "en": "Lateral surface of the ramus of the mandible, superior half",
            "de": "Laterale Fläche des Ramus mandibulae, obere Hälfte (Tuberositas masseterica)"
        },
        "innervation": {
            "en": "Masseteric nerve from the mandibular division of the trigeminal nerve (V3)",
            "de": "N. massetericus aus dem N. mandibularis (V3)"
        }
    },
    "testMovement": {
        "en": "Clench the teeth firmly",
        "de": "Zähne fest zusammenbeißen"
    },
    "placementNotes": {
        "source": "Criswell E. Cram's Introduction to Surface Electromyography. 2nd ed. Jones & Bartlett; 2011, p. 270",
        "site": "Masseter",
        "placementType": "specific",
        "signalCheck": {
            "de": "Zähne zusammenbeißen; zusätzlich Schlucken und Sprechen prüfen.",
            "en": "Clench the teeth; also check swallowing and talking."
        },
        "crosstalk": {
            "de": [
                "Pterygoideus lateralis",
                "Buccinator",
                "Zygomaticus"
            ],
            "en": [
                "lateral pterygoid",
                "buccinator",
                "zygomaticus"
            ]
        },
        "artifacts": {
            "de": "Schlucken und Sprechen erzeugen eigene Bursts — beides beim Auswerten ausschließen.",
            "en": "Swallowing and talking produce their own bursts — exclude both when analysing."
        }
    },
    "mvcTest": null,
    "measurability": "surface EMG",
    "license": "Free to cite with attribution to emgguide.de. Electrode placements based on SENIAM (Hermens et al. 2000) and the cited literature; not an official SENIAM product; not a substitute for medical advice.",
    "publisher": {
        "name": "EMG Guide (menios GmbH)",
        "url": "https://emgguide.de/"
    },
    "dateModified": "2026-10-21"
}