Muscular System

Question 1

Makes up 50% of our body weight; made up of proteins and water

Answer 1

Muscles

Question 2

Number of muscles in the body

Answer 2

600 muscles

Question 3

Hardest working muscle

Answer 3

Eye

Question 4

Largest muscle

Answer 4

Gluteus Maximus

Question 5

Number of muscles needed to smile

Answer 5

17 muscles

Question 6

Number of muscles needed to frown

Answer 6

42 muscles

Question 7

Head muscle

Answer 7

Frontalis

Question 8

Function of muscular system

Answer 8

For movement

Question 9

Types of muscle (3)

Answer 9

Skeletal, Cardiac, Smooth

Question 10

Body energy converters; create movement by flexing and extending joints; only body tissue that can contract

Answer 10

Muscles

Question 11

Protein fibers that cause muscle contraction

Answer 11

Microfilaments

Question 12

Means muscle

Answer 12

Myo, Mys

Question 13

Means flesh

Answer 13

Sarco

Question 14

Shapes of muscles (4)

Answer 14

Triangular, Spindle, Circular, Flat

Question 15

Places where triangular muscles can be found

Answer 15

Neck, shoulder

Question 16

Places where spindle muscles can be found

Answer 16

arms, legs

Question 17

Places where circular muscles can be found

Answer 17

Mouth, anus

Question 18

Places where flat muscles can be found

Answer 18

diaphragm, forehead

Question 19

Describe skeletal muscles in terms of: location, presence or absence of striations, number of nucleus, movement, nervous system that controls this and shape.

Answer 19

Limbs, striated, multi-nucleated, voluntary, CNS cylindrical

Question 20

Describe smooth muscles in terms of: location, presence or absence of striations, number of nucleus, movement, nervous system that controls this and shape.

Answer 20

Walls of viscera, no striations, uni-nucleated, involuntary, PNS, spindle-shaped

Question 21

Describe cardiac muscles in terms of: location, presence or absence of striations, number of nucleus, movement, nervous system that controls this and shape.

Answer 21

Heart, striated, uni-nucleated, voluntary, PNS, branching

Question 22

Contractile elements of skeletal muscles

Answer 22

myofibrils

Question 23

Rhytmic movement of a muscle or an organ

Answer 23

peristalsis

Question 24

Stripes that indicate fast movement

Answer 24

Striations

Question 25

Aids for movement

Answer 25

Actin and myosin

Question 26

Gap junctions that appear as dark lines

Answer 26

Intercalated discs

Question 27

Types of responses (2)

Answer 27

Twitch, Tetanus

Question 28

Single brief contraction

Answer 28

Twitch

Question 29

One contraction that is immediately followed by another

Answer 29

Tetanus

Question 30

Attachment to a movable bone

Answer 30

Origin

Question 31

Attachment to an immovable bone

Answer 31

Insertion

Question 32

Flexes and rotates head

Answer 32

Sternocleidomastoid

Question 33

Elevates mandible

Answer 33

Masseter

Question 34

Elevates and retracts mandible

Answer 34

Temporalis

Question 35

Extends head; adducts, elevates, depresses scapula

Answer 35

Trapezius

Question 36

Adducts, extends, rotates arm

Answer 36

Latissimus Dorsi

Question 37

Abducts, flexes, extends arm

Answer 37

Deltoid

Question 38

Adducts, flexes, rotates arm

Answer 38

Pectoralis Major

Question 39

Flexes elbow joint

Answer 39

Biceps Brachii

Question 40

Extends elbow joint

Answer 40

Triceps Brachii

Question 41

Flexes abdomen

Answer 41

Rectus Abdominus

Question 42

For inspiration

Answer 42

Diaphragm

Question 43

Extends, rotates thigh

Answer 43

Gluteus Maximus

Question 44

Flexes thigh; extends lower leg

Answer 44

Rectus Femoris