activity 7

Question 1

list the muscle hierarchy (largest to smallest)

Answer 1

1. muscle organ
2. fasicle
3. muscle fiber(cell)
4. myofibril
5. myofilament

Question 2

Describe muscle origin

Answer 2

1. muscle attachment closest to the midline
2. More proximal region in the body
3. Less moveable and more stable

Question 3

Describe Muscle Insertion

Answer 3

1. muscle attachment furthest from the midline
2. more distal to the origin
3. more moveable
4. can be attached to the skin

Question 4

Describe prime movers

Answer 4

Muscle that performs action

Question 5

Describe Synergist

Answer 5

A muscle that assist the prime movers or antagonist

Question 6

Describe antagonist muscles

Answer 6

A muscle that is relaxing or lengthening

Question 7

contractile proteins within the cell

Answer 7

myofilaments

Question 8

bundles of myofilaments

Answer 8

myofibrils

Question 9

bundles of myofibrils

Answer 9

fasicles

Question 10

describe sarcomeres

Answer 10

functional unit of contraction