Muscular System

Question 1

3 short term effects on muscular system

Answer 1

Increased muscle temp
Lactic acid build up
Dehydration
Muscle cramp
Muscle fatigue
Increased CO2 production
Increased body temp

Question 2

3 long term effects on muscular system

Answer 2

body shape change
Increased tolerance to lactic acid
Stronger and thicker tendons
Increased flexibility
Muscular hypertrophy

Question 3

name the muscles

Answer 3

deltiod
trapezius
latissimus dorsi
gluteals
hamstring
gastrocnemius
quads
tircep
tibialis anterior
hip flexor
abdominals
bicep
pectoralis major

Question 4

deltoid

Answer 4

front and rear of shoulder
abducts arm and lifts above head

Question 5

hip flexor

Answer 5

front of hip
connects leg, pelvis and abdomen
flexes hip and moves knee and leg up to body

Question 6

pectoralis major

Answer 6

front of chest
abducts arm and moves forward

Question 7

bicep

Answer 7

front of upper arm
flexes lower arm

Question 8

tricep

Answer 8

back of upper arm
extends lower arm

Question 9

latissimus dorsi

Answer 9

back of chest
extends and abducts lower arm

Question 10

abdominals

Answer 10

front of abdomen
holds in stomach, flexes spine and rotates trunk

Question 11

gluteals

Answer 11

in buttocks
extends and abducts upper leg

Question 12

quadriceps

Answer 12

front of thigh
extends lower leg

Question 13

hamstrings

Answer 13

back of thigh
flexes lower leg

Question 14

tibialis anterior

Answer 14

runs down shin
flexes foot at ankle

Question 15

gastrocnemuis

Answer 15

back of lower leg
extends foot at ankle

Question 16

trapezuis

Answer 16

upper back
moves arm backwards at shoulder level

Question 17

what are antagonistic muscle pairs

Answer 17

two muscles that work together to create movement as one contracts (agonist) as the other relaxes (antagonist)

Question 18

what are the antagonistic muscle pairs

Answer 18

bicep and tricep to extend and flex elbow
hip flexor and gluteals to flex and extend hip
hamstring and quadricep to flex and extend leg at knee
tibialis anterior and gastrocnemius to perform dorsi and plantar flexion

Question 19

what is eccentric contraction

Answer 19

when a muscle lengthens

Question 20

what is concentric contraction

Answer 20

when a muscle shortens

Question 21

what is isotonic contraction

Answer 21

when muscles contract and create movement

Question 22

what is isometric contraction

Answer 22

when muscles contract with no resulting movement

Question 23

what are 3 types of muscle

Answer 23

voluntary
involuntary
cardiac

Question 24

voluntary muscles

Answer 24

choose when to use them
made of myofibrils
attatch to skeleton by tendons
isotonic contractions

Question 25

involuntary muscles

Answer 25

cant control them
spindle shaped fibres
controlled by involuntary nervous system

Question 26

cardiac mucles

Answer 26

found in heart wall only
cant control them
interlaced fibres
spread electrochemical messages
regulates HR and pumps blood

Question 27

what are the 3 types of muscle fibre

Answer 27

type l slow
type lla fast
type llx fast

Question 28

when would you use type l slow

Answer 28

marathon or swimming

Question 29

when would you use type lla fast

Answer 29

javelin or triple jump

Question 30

when would you use type llx

Answer 30

weight lifting and high jump