Practice Quiz!!

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

2. What muscle is this? • 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?

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

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

5. What muscle is this? • “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

6. What muscle is this? • 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

7. What muscle is this? • 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

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

9. What muscle is this? • 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

10. What muscle is this? • 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

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

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

13. What muscle is this? • 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

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

15. 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

16. What muscle is this? • 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

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

18. What muscle is this? • 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

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

20. 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

21. What muscle is this? • 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