Worksheets5.5 The Muscular System
Total questions: 16
Worksheet time: 9mins
What type of muscle tissue is indicated in the picture?
cardiac
smooth
skeletal
fishy
Smooth Muscle is found in the?
Heart
Facial
Organs
Legs
Choose the arrangement that lists the events in the order the occur at a neuromuscular injunction in given the following events:
1.the man plays piano with fingers
2.these impulses come from brain to motor neuron
3.brain send series of electrical impulses to do any job lets say play piano
4.motor neuron takes these impulses to the skeletal muscle
5.from muscle to the fingers
2,3,4,1,5
3,2,4,5,1
3,4,2,1,3
4,5,2,1,3
___are thin filaments.
troponin
tropomyosin
actin
myosin
___are thick filaments.
actin
myosin
troponin
tropomyosin
A ___extends from one Z disc to another Z disc.
Sarcolemma
Neuromuscular junction
Sarcomere
Motor end plate
The sliding filament theory of muscle contraction says
Actin and myosin filaments condense, thus causing the filament to shorten which in turn shortens the muscle
Myosin rotates and wraps actin around it making the muscle shorter
Friction is reduced between thin and thick filaments causing the thick filaments to move inside the thin
Actin filaments slide over myosin filaments, making the muscle shorter
Which number represents the sarcomere?
1
2
3
4
The color of the Slow-twitch muscles is (a) .
The color of the fast-twitch muscles is (a) .
(a) is a tough connective tissue that joins skeletal muscle and bone.
There are (a) types of proteins present in the muscle fibre that help in contraction and relaxation of muscle.
Choose all that's true for the skeletal muscle
it has dark bands and light bands
the basic unit of the muscle fibre is called sarcomere
motor neuron carry information from muscle to brain
actin is thick and myosin is a thin protein
tendon connects muscles with bone
Topic 5.5. the skeletal system, I ________.
need to learn more.
find it hard but now I know it in detail.
have understood everything in it.
have not understood anything of it.
