frontalis
DESCRIPTION
Muscle. Frontalis. Action. Raises eyebrows. A. Muscle= Zygomaticus. B. Demonstrate the action. C. D. E. Muscle. Latissimus dorsi. Action 1. 1. Shoulder adduction. Action 2. 2. Shoulder extension. Muscle. Rectus abdominis. Action. Flexes trunk. Muscle. Orbicularis oculi. - PowerPoint PPT PresentationTRANSCRIPT
Frontalis
Raises eyebrows
Muscle
Action
Muscle=Zygomaticus
Demonstrate theaction.
A
B
C
D
E
Latissimus dorsi
1. Shoulder adduction
2. Shoulder extension
Muscle
Action 1
Action 2
Rectus abdominis
Flexes trunk
Muscle
Action
Orbicularis oculi
Closes eye
Muscle
Action
Sternocleidomastoid
1. Rotates head (alone)
2. Flexes neck (together)
Muscle
Action 1
Action 2
Muscle=Platysma
Frown
A
B
C
D
E
Action
Muscle
ShoulderLateral rotationAction
The deepest layer of the abdominal wall.
Transversus abdominis
Compresses abdomenand rotates trunk
Muscle
Action
Muscle=Buccinator
Keeps cheeksagainst teeth.
A
B
C
D
E
Action
Most superficial layer of abdominal wall.
External oblique
Rotates trunk
Muscle
Action
Muscle=Temporalis
Closes jaw.
A
B
C
D
E
Action
Muscle
ShoulderLateral rotationAction
The 2nd (middle) layer of the abdominal wall.
Internal obliques
Rotates trunk
Muscle
Action
Diaphragm
Breathing
Muscle
Action
Deltoid
Demonstrate the action.
Muscle
Muscle
ShoulderMedial rotationAction
Pectoralis major
Shoulder horizontaladduction
Muscle
Action
Mentalis
Demonstrate the action.
Muscle
Column of 3 muscles
Erector spinae
1. Extends trunk (together)
2. Lateral flexion (alone)
Muscle
Action 1
Action 2
Muscle=Masseter
Closes jaw.
A
B
C
D
E
Action
Trapezius
1. Neck extension
2. Shoulder elevation
3. Shoulder retraction
Muscle
Action 1
Action 2
Action 3
External oblique
Rotates trunk
Muscle
Action
Orbicularis oris
-Compresses and protrudes lips, the kissing muscle.
Muscle
Action
Muscle
ShoulderAbductionAction
Nasalis
Scrunches noseCrinkles nose
Muscle
Action