B.1.4

Question 1

Myofibrils

Answer 1

• thin and thick filaments
• striated look
• makes muscle contract

Question 2

Z discs

Answer 2

Seperate one sarcomere from the next

Question 3

A band

Answer 3

• middle part of the sacromere that has thick filaments
• At the end of A bands their is a zone of overlap with both thick and thin

Question 4

I band

Answer 4

Only thin filaments and the z disc passes through the I band

Question 5

H zone

Answer 5

Only thick filaments