Muscular System

Question 1

Prefixes for ‘muscle’?

Answer 1

Sarco and Myo

Question 2

Another word for cell membrane?

Answer 2

Sarcolemma

Question 3

Another word for Cytoplasm?

Answer 3

Sarcoplasm

Question 4

What is the red pigment called?

Answer 4

Myoglobin

Question 5

What is a muscle fibre made of?

Answer 5

Myofibrils running parallel in length

Question 6

What is a myofibril made of?

Answer 6

Myofilaments

Question 7

Myofilaments are made up of which two proteins?

Answer 7

Myosin - Thick filament

Actin - Thin filament

Question 8

What causes muscles to move?

Answer 8

Nerve impulses:

Nerve -> muscle (electrical conduction)

Message -> Synapse (chemical)

Muscle Fibre Responds (contraction)

Question 9

What connective tissue wraps around a muscle fibre?

Answer 9

Endomysium

Question 10

What connective tissue surrounds each fascicle?

Fascicle - bundle of muscle fibres

Answer 10

Perimysium

Question 11

What dense irregular connective tissue surrounds the whole muscle?

Answer 11

Epimysium

Question 12

What is an agonist? Give an example

Answer 12

Same type of movement

4 muscle - quadriceps

Question 13

What is a partial agonist? Give example

Answer 13

Helps with movement

Quadriceps and Soleus

Question 14

What is an antagonist? Give example

Answer 14

The opposite movement

Biceps and Triceps

Question 15

What are the two types of contraction?

Answer 15

Isotonic - Tension same,
shape changes,
muscle shorter

Isometric - Tension higher,
shape the same,
Muscle slightly shorter

Question 16

What are the three types of muscular systems?

Answer 16

Skeletal - Attached to bones

Smooth - Internal Organs

Cardiac - Heart