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Self-Guided Study for Chapter 10 Independent 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 _________________________.