Contrasting Muscle Motion
Abduction
Name the three types of muscle tissue
Skeletal, Smooth, and Myocardial
tightening of a muscle
Contraction
A thick, fan-shaped muscle situated on the anterior chest wall
Pectoralis major
Decreasing the angle between two bones by bending a limb at a joint
Flexion
Increasing the angle between two bones or the straightening out of a limb
Extension
This type of muscle is known as a voluntary muscle
Skeletal muscle
occurs when a muscle returns to its original form
Relaxation
A ring-like muscle that tightly constricts the opening of a passageway
Sphincter
Circular movement around an axis such as the shoulder joint
The definition of ADDUCTION
The movement of a limb toward the midline of the body
This type of muscle is known as an involuntary muscle
Smooth muscle
extreme or overextension of a limb
Hyperextension
Means "towards the midline"
Medialis
The act of rotating the arm or leg so that the palm of the hand or sole of the foot is turned downward or backward
Pronation
The movement that bends the foot upward at the ankle
Dorsiflexion
This muscle forms the muscular walls of the heart
Myocardial muscle
This muscle turns the body part on its axis
rotator muscle
Means "towards or at an angle"
Oblique
The movement that bends the foot downward at the ankle
Plantar Flexion
The act of rotating the arm or leg so that the palm of the hand or sole of the foot is turned forward or upward
Supination
Which heart muscle is known as a striated muscle?
Skeletal muscle (meaning that under a microscope, the dark and light bands in the muscle fibers create a striped appearance)
The act of raising or lifting a body part (for example....a smile)
Elevation
Means in straight alignment with the vertical axis of the body
Rectus
Circumduction