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Ch 11 MUS of Body
Anatomy Chapter 11
Question | Answer |
---|---|
Naming Skeletal Muscles: Location | -Some muscle's names indicate the bone or body region with which the muscle is associated -TEMPORALIS MUSCLE- overlies the temporal bone -INTERCOSTAL MUSCLES run between the ribs |
Naming Skeletal Muscles: Relative Size | Compare to each other: -Vastus- huge -Maximus- large -Longus- long -Minimus- small |
Naming of Skeletal Muscles: Number of origins | -Attachment of fixed (immovable) part of muscle -Biceps- two heads (origins) -Triceps- three heads -Quadriceps- four heads |
Naming Skeletal Muscles: Shape | -Different geometric shapes -Deltoid -Rhomboid -Latissimus -Teres -Trapezius |
Naming Skeletal Muscles: Direction of Fibers | -Tell how muscle fibers run -rectus- fibers run straight/ parallel to the the midline of the body -Transversus- Transverse/across -Oblique- fibers run at diagnol angles to an imaginary defined axis -Orvicularis- circular |
Naming Skeletal Muscles: Location of attachments | -Named according to point of origin and insertion -Origin always named first -Stemocleidomastoid -Origin on the sternum and clavicle -Insertion on the mastoid process -Brachioradialis -Origin on the brachium, arm -Insertion o |
Naming Skeletal Muscles: Action | -Action words: flexor, extensor, or adductor apppear in muscle's name -Abductor- to abduct structure -Adductor- to adduct structure -Flexor- to flex structure -Extensor- to extend structure -Levator- to lift or elevate structure -Masseter- to |
Extrinsic Tongue Muscles | 1. Genioglossus 2. Hyoglossus 3. Styloglossus |
Deep Back Muscles | 1. Quadratus Lamborum 2. Semispinalis 3. Erector Spinae 4. Longismus 5. Spinalis |
Extrinsinc Tongue Muscles are innervated by cranial Nerve | cranial nerve XII Hypoglossal |