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Chapter 7 terms - The muscular system

Lisa R. Williams

Terms from Chapter 7 - The Muscular System

Word Bank
Adductor group, Biceps brachii, Brachalis, Buccinator, Deltoid, Diaphragm, External intercostals, Fibularis group, Frontalis, Gastrocnemius, Gluteus maximus, Gluteus medius, Glycogen, Hamstring group, Iliopsoas, Internal intercostals, Latissimus dorsi, Masseter, Myofibril, Myofilament, Myoglobin, Orbicularis oculi, Orbicularis oris, Pectoralis major, Quadriceps femoris group, Rotator cuff, Sarcolemma, Sarcomere, Sarcoplasm, Sarcoplasmic reticulum, Sartorius, Serratus anterior, Sternocleidomastoid, T tubule, Temporalis, Tibialis anterior, Trapezius, Triceps brachii, Zygomaticus, acetylcholine, hypertrophy

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3                   4                 5
      8 9  
10                                     11
14 15                                  
16                   17   18      
21 22                                             23  
    25                   26        
    28   29                 30              
        32   33              
35                     36

3.Cytoplasm of a muscle fiber that contains organelles, including myofibrils
4.A red pigment that stores oxygen for muscle contraction
7.Flexes, medially rotates, and adducts arm
10.Extends thigh
12.Flexes arm and forearm, supinates forearm
13.Flexes forearm
15.Extends arm and forearm
16.muscle in cheek area; "trumpeter's muscle"; also used in swallowing
19.Flexes and rotates leg medially and extends thigh
20.Closes the jaw
22.The smooth ER of a muscle fiber that stores calcium (Ca++)
25.A section of thick and thin filaments between Z lines
29.Depresses scapula and pulls it forward; elevates arm above horizontal
34.Flexes head and rotates head
37.A bundle of myofilaments that contracts
38.Depress the rib cage during a forced expiration
39.Extends head and adducts scapula
40.Helps to close the jaw
41.Muscle involved in smiling
1.Plasma membrane of a muscle fiber that forms T tubules
2.Flexes thigh
5.Muscle lying over the frontal bone, raises the eyebrows and wrinkles the brow
6.Extends, adducts, medially rotates arm
8.Extends leg, steadies hip joint, and assists in thigh flexion
9.Adducts thigh
11.Dorsiflexion and inversion of foot
14.muscles between the ribs, elevate the rib cage when breathing
17.Plantar flexion and eversion of foot
18.A ring of muscle that closes or blinks the eye; responsible for "crow's feet" at the eye corners
21.A ring of muscle around the mouth, used to pucker the lips
23.Increase in the size of an organ, usually by an increase in the size of its cells
24.Abducts thigh
26.Angular and rotational movements of arm
27.Abducts arm to horizontal
28.Thick and thin filaments whose structure and functions account for muscle striations and contractions
30.A neurotransmitter that signals the muscle cell to contract
31.Flexes leg; flexes, abducts, and laterally rotates thigh
32.Flexes leg; plantar flexion and eversion of foot
33.Dome-shaped muscle used during quiet breathing; separates thoracic and abdominal cavities
35.Extension of the sarcolemma that extends into the muscle fiber and conveys nerve signals that cause Ca++ to be released from the sarcoplasmic reticulum into the sarcoplasm
36.A polysaccharide that stores energy for muscle contraction

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