Axial Muscle Flashcards
What muscle elevates the eyebrows?
The frontalis
What muscle closes the eye?
Orbitcularis oculi
What muscle closes the lips?
Orbitcularis oris
What raises the corner of the mouth for a smile?
Zygomaticus major
What are Duchenne smiles?
Authentic smiles. Person uses both the zygomaticus major and the orbitcularis oculi
What muscle makes you frown?
Depressor angulis oris
What muscle supports the head?
Platysma
______and______ muscles elevate the mandible and move its sideways
Temporalis, massester
When we inhale, 3 sets of intercostal muscles pull ribs ____ and_____
superiorly and laterally
The types of intercostal muscles
Innermost intercostal, internal intercostal and external intercostal
When we exhale, the diaphragm’s central tendon pulls it ____ when relaxed
superiorly
When we forcibly exhale, abdominal muscles contract, pushing abdominal contents up against diaphragm further decreasing ______
thoracic cage
_______is the antagonist to the erector spinae muscles. When contracted it pulls the abdomen and thorax into a c-curve
Rectus abdominus
_____ and ______contract to laterally flex the vertebral column, allowing twisting of the abdomen/thorax
Internal and external obliques
Deep ________muscles are “core stabilizers”. Abdominal/thoracic immobilization require contraction of the transverse abdominal
transverse abdominal
What flexes, adducts, and medially rotates humerus?
Pectoralis major
______can flex, extend, medially rotate, or abduct arm depending on which fibers are active
Deltoid
_____ and_____muscles are both involved in retraction of the scapulae and movement of the shoulder
Trapezius and rotator cuff
Antagonist to abs
Maintains posture and rigidity when bending forward
Erector spinae
Upper limb movement
Latissimus dorsi
Latissimus dorsi works to pull the crossbar down.
Adducts, extends, and medially rotates humerus
