Muscular System Flashcards
1
Q
Number of muscles in the human body?
A
650-700
2
Q
Smallest muscle in group?
A
Minimus
3
Q
Threadlike structures contained in each muscle fiber.
A
Myofibrils or Fibrils.
4
Q
Fibrous connective tissue which separates individual skeletal muscles from adjacent muscles. (Muscle sheath)
A
Fascia.
5
Q
Turn the hand toward Ulnar side of wrist?
A
Ulnar Deviation.
6
Q
How many muscles are attached to bones?
A
600+
7
Q
Flexes the forearm/elbow?
A
Biceps Brachii.
8
Q
Smiling muscle?
A
Zygomaticus.
9
Q
Turning of sole of the foot to face medially.
A
Inversion.
10
Q
Shortest muscle in the group?
A
Brevis.
11
Q
Extends the forearms/elbows?
A
Triceps Brachii.
12
Q
Flex wrist and abducts hand.
A
- Flexor Carpi radialis
* Flexor Carpi Ulnaris
13
Q
Naming skeletal Muscles.
A
- Location
- Number of origins
- Location of origin/insertion
- Shape
- Action
14
Q
Turning the sole of the foot to face laterally.
A
Eversion.
15
Q
Tailors muscle?
A
Sartorius.
16
Q
Movement backward/drawn backward?
A
Retraction.
17
Q
Flexes the forearm?
A
Brachioradialis.
18
Q
What is sprain?
A
Tearing of ligament.
19
Q
Raises corner of mouth?
A
Zygomaticus.
20
Q
Flexes vertebral column and compresses abdomen?
A
Rectus abdominis.
21
Q
3 large openings in diaphragm?
A
- Aortic Hiatus
- Esophageal Hiatus
- Opening of the inferior vena cava
22
Q
Also known as the swimmers muscle?
A
Latissimus Dorsi.
23
Q
Fan shaped muscle?
A
Pectoralis major.
24
Q
Production of heat?
A
Thermogenesis.
25
Alternative name for medial rotation?
Internal rotation.
26
Alternative name for diaphragm?
Phren/ic
27
Turning away from regular standard.
Deviation.
28
Extends femur?
Gluteus maximus.
29
Alternative name for muscle tone?
Tonus
30
Flexes and adducts the humerus?
Pectoralis major.
31
Adducts femur
Adductor group.
32
Largest muscles in the group?
Maximus.
33
Extends vertebral column?
Sacrospinalis group.
34
Muscle that raises eye brows?
Frontalis.
35
Muscles that move the head?
Sternocleidomastoid.
36
Muscle that reverses the prime movement?
Antagonist.
37
Do not completely relax at rest, but remain partly contracted.
Muscle Tone.
38
Components of the quadriceps femoris group?
* Rectus Femoris
* Vastus Lateralis
* Vastus Medialis
* Vastus Intermedius
39
Sac like structure between muscles or tendons and an adjacent bony prominence. Decreases friction between the two.
Bursa.
40
Prayers muscle?
Sternocleidomastoid.
41
Extends femur and flexes lower leg?
Hamstring Group.
42
Pigment responsible for the reddish brown colour of skeletal muscles?
Myoglobin.
43
Components of hamstring group?
* Biceps Femoris
* Semimembranosus
* Semitendinosus
44
Extends fingers and digits?
Extensor Digitorum.
45
Portion between origin and insertion?
Belly
46
What does the psoas muscle do?
Help flex thigh.
47
Attached to the skeleton. Forms contour of body and is striated.
Skeletal Muscle.
48
Alternative name for lateral rotation?
External Rotation.
49
Helps prime mover by producing the same movement?
Synergist.
50
Dorsiflexion and inversion of foot?
Tibialis anterior.
51
What is a strain?
Tearing of muscle.
52
Muscle fibres are parallel to midline?
Rectus.
53
Raising superiorly.
Elevation.
54
Condition where skeletal muscles undergo partial contraction, fixes joints.
Rigor Mortis.
55
Water in lungs?
Pleural effusion.
56
Muscle fibers are perpendicular to midline?
Transversus.
57
Moving towards the midline.
Adduction.
58
Turning of body part from anterior towards the median plane.
Medial Rotation
59
Movement forward from normal position?
Protraction.
60
Toward the shin?
Dorsiflexion.
61
Four important muscles in radiography?
* Diaphragm
* Pectoralis Major
* Psoas Major
* Intercostal Muscles
62
Towards the sole?
Plantar Flexion.
63
How muscles produce movement.
Contracting of muscles.
64
Mastication Muscles?
* Masseter
* Temporalis
* Pterygoid
65
Smallest muscle in the body?
Strapedius Muscle.
66
Muscle to bone attachment?
Tendon.
67
Known as the kissing muscle?
Orbicularis Oris.
68
Origin of pectoralis major?
Sternum and chest wall.
69
Compresses cheeks while whistling and sucking?
Buccinator.
70
Muscle that makes is majorly responsible for moving?
Prime mover.
71
Typical joint for flexion?
Hinge joints.
72
Chewing muscle?
Masseter.
73
Opposes the prime movers actions.
Antagonist.
74
Alternative name for prime mover?
Agonist.
75
Exhalation Muscle?
Internal Intercostal.
76
Stabilizes the origin of the prime mover?
Fixator.
77
Increase in angle of joints?
Extension.
78
Flat tendon?
Aponeurosis.
79
Extends wrist and abducts hand?
Extensor Carpi Radialis.
80
Flexes the lower leg?
Sartorius.
81
Helps close and protrudes the lips?
Orbicularis Oris
82
Abducts the humerus?
Deltoid.
83
Percentage of heat produced by muscles?
85%
84
Widest muscle in the group?
Latissimus.
85
Alternative name for belly?
Gaster.
86
Turn the hand to radial side of the wrist?
Radial Deviation.
87
Trumpeters muscle?
Buccinator.
88
Longest muscle in the body?
Sartorius.
89
Attached to moveable bone?
Insertion.
90
Pulls ribs down and in (exhalation)?
Internal Intercostal.
91
Palm facing downwards?
Pronation.
92
Number of named muscles?
639
93
Rotation happens where?
Ball and socket joints.
94
Latin word for muscle?
Myo
95
Maintenance of upright position.
Posture.
96
Alternative name for tendon?
Sinew, Cord or Leader.
97
Sign of death?
Rigor Mortis.
98
Decreasing the angle of parts.
Flexion.
99
Main function of all muscles.
Contraction
100
Longest muscle in the group?
Longus.
101
Only muscle that can be controlled.
Skeletal Muscles.
102
Triangular muscle?
Deltoid.
103
Turning of body part from anterior away the median plane.
Lateral rotation.
104
Inhalation muscle?
External Intercostal.
105
Helps fill space between adjacent ribs.
Intercostal Muscles.
106
Movement in a circular path.
Circumduction.
107
Pulls ribs up and out (inhalation).
External Intercostal.
108
Moving around a longitudinal axis?
Rotation.
109
Muscle found only in the heart, striated and involuntary?
Cardiac Muscle
110
Flattens to enlarge chest cavity for inhalation?
Diaphragm.
111
Flexes femur?
Iliopsoas.
112
Muscle fibres are at an angle?
Oblique.
113
Rotates and flexes vertebral column? Compresses abdomen.
External Obliques.
114
Combination of flexion, extension, abduction and adduction?
Circumduction.
115
Also known as the boxers muscle?
Triceps brachii.
116
Lowering inferiorly?
Depression.
117
Abducts femur?
Gluteus Medius.
118
Timespan for rigor mortis?
72 hours or more.
119
Attached to immovable or less movable bones?
Origin.
120
Draws angle of mouth downward?
Platysma.
121
Specialized synergist?
Fixators.
122
Muscle with no striations, moves involuntarily and lines the visceral organs.
Smooth muscles.
123
Where is the psoas muscle?
Lateral to the lumbar vertebrae.
124
Four sided muscle?
Quadratus.
125
Muscle which helps blink and close eyes?
Orbicularis Oculi.
126
Moving away from midline.
Abduction.
127
Circular shaped muscles?
Orbicularis.
128
Extends and adducts the humerus?
* Latissimus Dorsi
| * Teres Major.
129
Alternative name for tearing of muscle?
Pulled Muscle
130
Raises, lowers, adducts shoulders, extends neck and adducts scapula.
Trapezius.
131
Flexes wrist and fingers?
Flexor digitorum superficialis.
132
Muscle that does Plantar flexion of foot?
* Gastrocnemius
| * Soleus
133
Flexes femur and extends lower leg?
Quadriceps femoris group.
134
Altering light and dark bands.
Striated.
135
Muscle cells which is the functional unit of a muscle.
Muscle Fibers.
136
Palms upward?
Supination
