Practice Quiz!! Write down all your answers and then we will come back and see how well you did!!

What muscle is this? Orbicularis Oculi? The WINKER A ringlike band of muscle, called a sphincter muscle, that surrounds the eye. It lies in the subcutaneous tissue of the eyelid Closes eye in blinking It also aids in the compressing the tear glands Orbicularis Oculi?

What muscle is this? Platysma The Frowner Thin sheet like superficial neck muscle. Plays a role in facial expression. Tenses skin of neck. (e.g. during shaving) Platysma

What muscle is this? Frontalis Lies over the frontal bone Wrinkles forehead Frontalis

What muscle is this? Masseter “The Chewer” A thick flattened muscle that can be felt just in front of the ear when the teeth are clenched Elevates mandible Closes mouth Masseter

What muscle is this? Trapezius A large triangular muscle in the upper back that extends horizontally from the base of the skull and the cervical thoracic vertebrae to the shoulder Rotates scapula. Trapezius

What muscle is this? Serratus Anterior A broad curved muscle located on the side of the chest Arises from narrow strips on the upper ribs and extends along the medial wall of the axilla to the ventral surface of the scapula Pulls scapula anteriorly and downward Used to thrust the shoulder forward when pushing something. Serratus Anterior

What muscle is this? Pectoralis Minor A thin, flat muscle that lies beneath the larger pectoralis major Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall                                                                   Pectoralis Minor

What muscle is this? Infraspinatus Occupies the depression below the spine of the scapula on its posterior surface. Attach the scapula to the humerus; helps to hold humeral head in glenoid cavity of scapula. Laterally rotate arm Infraspinatus

What muscle is this? Latissimus Dorsi It is a wide, triangular muscle that curves upward from the lower back, around the sides, and to the armpit. Extends, adducts, and rotates arm, pulls shoulder down or back Latissimus Dorsi

What muscle is this? Deltoid Abducts, extends, and flexes the arm It is a thick, triangular muscle that covers the shoulder joint.                                  Deltoid

What muscle is this? Brachioradialis                                                      Connects the humerus to the radius. Flexes forearm at elbow Brachioradialis

What muscle is this? Extensor Digitorium Runs medially along the back of the forearm. Connects the humerus to the posterior surface of the phalanges and then extends the fingers. Extends hand at wrist joint Extensor Digitorium

What muscle is this? Rectus Abdominis Long, straplike muscle that connects the pubic bones to the ribs and sternum. Tenses abdominal wall Compresses contents Flexes vertebral column Rectus Abdominis

What muscle is this? (2nd muscle of the hamstring) Long bandlike muscle on the back of the thigh. Connecting the ischium to the proximal end of the tibia. Flexes and rotates the leg medially and extends the thigh Semitendinosus

What muscle is this? Saritoris An elongated, straplike muscle that passes obliquely across the front of the thigh and then descends over the medial side of the knee. Connects the ilium to the tibia and flexes the leg and the thigh. Flexes leg and thigh Abducts and rotates thigh laterally Saritoris

What muscle is this? Rectus Femoris Extends leg at knee Most medial of your quad muscles. Rectus Femoris

What muscle is this? Gluteus Maximus The largest muscle in the body and covers a large part of each buttock Connects the ilium, sacrum, and coccyx to the femur by fascia of the thigh and extends the thigh. Extends thigh at hip, helps to straighten the lower limb, also used to raise the body from a sitting position Gluteus Maximus

What muscle is this? Gracilis                  A long straplike muscle that passes from the pubic bone to the tibia. Adducts thigh Flexes leg at knee Gracilis

Extensor Digitorium Longus What muscle is this? This is situated along the lateral side of the leg just behind the tibialis anterior. Dorsiflexion and eversion of the foot Extension of toes Extensor Digitorium Longus

What muscle is this? Soleus A thick, flat muscle located beneath the gastrocnemius and together these two muscles form the calf of the leg Arises from the tibia and fibula and extends to the heel Plantar flexion of foot Soleus