Test 3 Axial Muscles Flashcards
Masseter Origin/Insertion
0) Zygomatic arch I)Coronoid process; lat surface and angle of mandible
Temporalis Origin/Insertion
O) Temporal Bone I) coronoid process of mandible
Masseter Action
Elevation; protraction
Temporalis Action
Elevation; retraction
Sternocleidomastoid Origin/Insertion
O) Manubrium & Clavicle(sternal) I)Mastoid process
Sternocleidomastoid Action
Bilateral: Neck flexion Unilateral; Lat flexion and OPPSITE side rotation
Diaphragm Insertion and Action
I) central tendon A:)flattens downward
External Intercostals Origin/Insertion/Action Looks
O)inf border of rib above I) sup border of rib below A: Elevation(inhalation) Look: fibers run Down to front
Internal Intercostal Origin/Insertion/Action/Location/Look
O: Sup border of rib below I) inf border of rib above A: Depression L: deep to external Look fibers run down and to the back
Rectus abdominis Location/size/Action
Large front ab muscle. Verbral flexion(crunch) and compression
Lines of connective tissue horizontally across the rectus abdominis(3)
Tendinous intersection
Line down the middle of the rectus abdominis
Linea alba
rectus sheath
Covering connective tissue(rectus abdominis)(white)
External Oblique Action and ID
A: Bilat: flexion: compression unilat: Lat flex and rotate to opposite side Fibers run Forward and Down
Internal oblique Action and ID
A: bilat: Flexion compression. Unilat: Lat flex & rotate to the SAME side ID: Run down and Back
Transverses abdominis ID and Action
Fibers run horizontal and Action is compression (ring) stabilizing lower back
Quadratus Lumborum Location and Action
Deep muscle in the posterior(attached to hip bone and vert) A: bilateral: extension(vertebral column) Unilat: lat flexion (cobra yoga)
Muscle groups that move the vertebral column and Action
Erector spinae(3 groups)(on the back)1) Iliocostalis group 2) Longissimus Group 3) Spinalis group ACTION: Bilat: extension on the spine unilat: Lat flexion (nine total muscles 3 from each group)
Spinalis Location in Erector spinea
Medial
Longisimus Erector spinea
Inbetween
Iliocostalis Erector spinea
Lateral
What is the smiling muscle
Zygomaticus major/minor
What musle do you strain in your neck(body builder)
Platysma
Kissing muscle
orbicularis oris
which musle surrounds your eye
orbicularis Oculi
Chewing Muscle
Masseter
