Muscular system

Question 1

Name 3 types of muscle tissue

Answer 1

Smooth (digestive system)
Cardiac (The Heart)
Skeletal (hamstrings)

Question 2

What are the characteristics of muscle tissue

Answer 2

Contractability
Extensibility ( can lengthen)
Elasticity
Excitability (can repsond to stimuli)

Question 3

Explain Smooth muscle

Answer 3

Involuntary - and maintains bodys enviroment

Question 4

Explain cardiac muscle

Answer 4

Involuntary - Pumps blood and oxygen around body

Question 5

Explain Skeletal muscle

Answer 5

Conscious - Cross over joints and attaches to bones via tendons

Question 6

Explain the sliding filament theory in 4 stages

Answer 6

Stage 1 - COCKING PHASE - ATP is broken down, energy is released which sets moiyson into cocking position
Stage 2 - BINDING PHASE - calcium ions are released from sarcoplasmic reticulum - allowing moiyson to attach to binding sites
Stage 3 - POWER STROKE - Myosin head rotates, pulling actin towards the centre of the sacromore to generate tension in muscle
Stage 4 - RE SET - ATP binds to the myosin head releasing it from the actin binding site

Question 7

4 Types of muscle contractions

Answer 7

Isotonic - concentric - generates force + shortens
eccentric - generates force + lengthens
Isometric - Generates force but stays the same length
Isokintric - Muscles move at a constant speed
Stretching - Muscles lengthening and then releasing

Question 8

What are the 4 roles of muscles

Answer 8

Antagonist ( opposite muscles to PM that relax )
Prime Mover (muscles that tense, causing main action)
Synergist - (Assists prime mover)
Fixator - (muscles contract to stabilise the stationary part

Question 9

Name 8 posterior muscles on the body

Answer 9

Middle trapezious 
latissimus dorsi 
glutes
hamstrings 
soleous 
gastronemious 
erector spinae 
Triceps branchii

Question 10

name 8 anterior muscles on the body

Answer 10

Deltiods
Bicep branchii
Hip flexors
Adductors 
Tibilais 
Quads
Rectus abdominis
External/internal obliques