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? 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?

3. 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

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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

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

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

13. 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

14. 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

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? 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

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

18. 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

19. 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

20. 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

21. 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