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Self-Guided Study for Chapter 10
1. You are responsible for naming or answering any questions concerning muscles you have studied in the lab.
 Identify a muscle
 Given a written description identify a muscle
 Identify a muscle within a given area of the body
Self-Guided Study Questions
Muscles of the Head-Facial Expression
1. This muscle is responsible for you being able to blink or squint the eyes: _______________
2. If you smile you use the _____________ muscles.
3. When you kiss someone you use this muscle: __________________
4. The large, thick muscle of chewing is the ________________.
5. The _____________ is the major muscle of the cheek and lies inferior to the masseter.
6. The ________________ is a sheet-like superficial muscle of the neck that helps to depress the mandible.
7. The _____________ muscles help you to grind food with your teeth.
Muscles of the Neck
1. This muscle manipulates the hyoid bone: _________________
2. The _______________ muscle causes the larynx to be depressed.
3. These muscles all act on the hyoid bone: ______________________________________
4. These muscles all act on the larynx or voice box: _______________________________________
5. This large neck muscle helps to rotate the head toward the shoulder and tilt the head to the same side: ________________
Muscles of the Vertebral Column
1. This group of muscles are the prime movers of back extension: _____________________________
Breathing Muscles
1. The ________________ muscles elevates the rib cage and the ________________ muscles depress the rib cage.
2. The _______________ muscles aid in inspiration and the _________________ muscles aid in expiration.
3. The diaphragm is the ____________ mover of inspiration. When relaxed it is __________ -shaped and when contracted it is
Abdominal Muscles
1. What does the term ‘rectus’ mean? Why is the most superficial abdominal muscle called the rectus abdominus?
2. The 4 functions of the rectus abdominus are ____________________, _________________, ___________________ and
3. What are the functions of the oblique muscles?
4. Why is the transverses abdominal muscle important in the digestive process? ___________________________________
Muscles of the Pelvic Floor
1. This muscle lifts the anal canal during defecation and forms the sphincter muscles: _________________
2. Important muscle during childbirth: ___________________
3. These muscles allows voluntary inhibition of urination: _______________________
Shoulder, Chest and Back Muscles
1. List the functions of the Serratus Anterior Muscle: ___________________________________________________________
2. The ____________________ lies below the large superficial chest muscle.
3. The most superficial muscle of the posterior thorax is the ______________________.
4. The _______________ muscle is deep to the trapezius and is straplike. It originates at C1-C4: __________________
5. This thick shoulder muscle provides for arm abduction: _____________________
Muscles of upper and lower Arm and Hands
6. The ____________________ muscle is the prime mover of arm extension and arm adduction: ____________________
7. The four muscles involved in the rotator cuff of the shoulder are: ____________, _________________, ______________ and
8. The _________________ muscle extends, rotates and adducts the humerus.
9. The three origins of the tricep muscle are the ___________________, ___________________ and ____________________.
10. The two origins of the bicep muscle are the _______________________ and _________________________.
11. The major functions of the bicep are: ___________________________________________________________________
12. The major functions of the Tricep are: ___________________________________________________________________
13. The major forearm flexor muscle is the ___________________________.
14. What does the pronator teres do? _____________________________________________________________________
15. These two muscles of the anterior forearm flexes the writes and abducts the hand: ________________ and
16. What purpose do the extensor digitorum muscles serve? ________________________________________________
17. These two posterior arm muscles extends and adducts the wrist: ________________ and _______________________
18. The purpose of the lumbrical muscles of the hand are _____________________________________________________
19. What do the interossei muscles do? _____________________________________________________________________
Muscles – Upper Leg and Outer Pelvis
1. These two muscles the _______________ and ________________ are responsible are the prime movers for flexing the thigh.
Together they are referred to as the _________________ group.
2. This strap-like muscle runs obliquely across the anterior thigh: ______________________________
3. Name the 4 quadriceps muscles: __________________, __________________, ___________________ and
4. These muscles move the leg toward the midline of the body: __________________
5. The quadriceps muscle group functions to _______________ the knee.
6. What is the function of the pectineus muscle? ________________________________________________
7. When we refer to the hamstring muscles we are talking about the __________________, ____________________ and
___________________ muscles.
Muscles of the Lower Leg and foot
1. If you dorsiflex your foot, you are using your ____________________ muscle.
2. If you are extending your toes, you are using the _____________________ muscle.
3. The ___________________ and __________________ muscles plantar flexes and everts the foot.
4. The large two-head posterior lower leg muscle is called the _________________________.
Origin and Insertion of Selected Muscles
1. The origin of the masseter is the ______________________ and the insertion is the ____________________________
2. The origins of the sternocleidomastoid are ________________________________________________ and the insertions are
the __________________________________________________
3. The origin of the rectus abdominus is the ________________________________________ and it inserts into the
4. The origin of the deltoid is __________________________________________________________ and it inserts on the
____________________ of the humerus.
5. The biceps originates on the ______________________ and ______________________ and inserts by common tendon into
the _____________________ of the humerus.
6. The rectus femoris originates on the _____________________________ and __________________ of the acetabulum. It
inserts on the _______________ and _________________________.