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34 Cards in this Set

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The fascicles are parallel to the long axis of the muscle. They are generally long strap like muscles that can generate much force. The strongest of these muscles are sudiform in shape, that is, they are wide in the middle and taper at each end.
Parallel--Rectus abdominus and biceps brachii
These are fan-like muscles. The fascicles are broad at the origin and taper to a narrow insertion. THis arrangement functions to concentrate the force of the muscle contraction into a smaill area.
Convergent--Pectoralis major
The fascicles are attached to a tendon in a feather like manner. THe tendon is the shaft of the feather and the fascicles are the vane of the feather. There are 3 types of pennate muscles. In a unipennate muscle the fascicles are attached to one side of the tendon. In a bipennate muscle the fascilcles are attached to one side of teh tendon. Ina bipennate muscle the fascicles are attached to both sides tot he tendon. In a multipennate muscle the fascicles converge on a branching tendon.
Pannate--Extensor digitorum, rectus femoris, and the deltoid, respectively
These are sphincter muscles. The fascicles surrond an opening. the action of the muscle increases or decreases the diameter of the opening
Circular--Orbicularis oculi
Frontalis- Function
Lifts the Eyebrows.
Occipitalis- Function
Pulls teh skin posteriorly.
Sternocleidomastoid- Function
Extend and turn the head.
Temporalis- Function
Acts with the masseter to raise and pull back the mandible.
Orbicularis Oris- Function
Closes and protrudes the lips, pulls the lips back against the teeth
Levator Scapulae- Function
Elevates and draws the scapula meially, extends and/or flexes the head
Splenius Capitis- Function
Extend the head when contracting together and rotate the head with contracting singly
Rhomboideus minor- Function
Elevates and helps the scapular rotate when adducting the arm.
Frontalis- Location
Top forehead; skull; Right
Occipitalis- Location
Top forehead; skull; Left
Sternocleidomastoid- Location
Neck; Long; Side
Temporalis- Location
Masseter- Location
Bottom Jaw Bone
Orbicularis Oris- Location
Upper Lip
Levator Scapulae- Location
Back/Side Neck
Splenius Capitis- Location
Back Neck
Rhomboideus Minor- Location
Slanted back neck, thin
Pectoralis Minor- Function
Depresses and abducts the scapula, rotates it down and can stabilize the scapula
Pectoralis Major- Function
Adducts, flexes and medially rotates the humerus inward
Serratus Anterior
Abducts the scapula and rotates it upward, lifts the ribs when the scapula is fixed
Internal Oblique- Function
It compresses the abdomen and can rotate the vertebral column
External Oblique- Function
It compresses the abdomen and can rotate the vertebral column
Rectus Abdominis- Function
Flexes the lumbar region of the vertebral column and compresses the abdomen
Trapezius- Function
Elevates and/or adducts the scpula, rotates the scapula up or down, draws the head back when the shoulders are fixed
Rhomboideus Major- Function
Elevates and rotates the scapula downward while adducting the arm
It laterally rotates and abducts the arm at the shoulder
Teres Minor-Function
laterally rotates, extends, and adducts teh humerus at the shoulder and stabilizes the elbow joint
Teres Major-Function
Assist the extension of the humerus, medially rotates teh humerus, helps rotate the scapula downward
Latissimus Dorsi-Function
Extends adducts and medially rotates the arm at the soulder. I also draws the arm inferiorly and posteriorly
Lumbodorsal Fascia- Function
A connective tissus that acts as the origin for muscles of the lower back