Muscles

Question 0

Composed of bundles of cylindrical striated cells

Answer 0

Whole muscle

Question 1

Whole muscles
Muscle fibers
Myofibril

Answer 1

3 types of muscles

Question 2

Small cylinders extend from one bone to another

Answer 2

Muscle fibers

Question 3

Hunderds of branded cylindrical myofibrils run length of each cell they are contractile elements of the cell called sacromere

Answer 3

Myofibril

Question 4

Actin filaments string of beads

Answer 4

Thin filaments

Question 5

Myosin form cross bridge between thick thin filaments

Answer 5

Thick filaments

Question 6

Sliding filament theory

Answer 6

Cross bridges attach to myosin binding sits on thin filaments
Sliding filament begins
Cross bridges act as oars pull filament forward the center of
Muscle cells shorten
Requires Ca+ions released
Ca+ ions reabsorved muscle relaxes

Question 7

Sacromere a

Answer 7

Thin
Think
Thin

Question 8

Benefit of exercise

Answer 8

Improves digestion

Increases blood flow and oxygen supply