Muscular System

Question 1

Agonist

Answer 1

Chiefly responsible for producing a particular movement

Question 2

Antagonist

Answer 2

Opposes the action of the agonist

Question 3

Synergist

Answer 3

Assists the action of the prime mover

Question 4

Fixator

Answer 4

Reduced or prevents one or more actions of a given muscle. Can prevent unnecessary movement at a joint

Question 5

Smooth muscle

Answer 5

Located in the walls of the internal organs. It is involuntary and controls the flow of fluids through hollow organs

Question 6

Cardiac muscle

Answer 6

Located in the muscle wall of the heart. Interlaced discs and gap junctions connect muscle cells

Question 7

Skeletal muscle

Answer 7

Also known as striated muscle. It is voluntary controlled and permits movement

Question 8

What proteins are thin filaments of a muscle fiber primarily made of

Answer 8

Gilamentous actin
nebulin tropmyogen
Troponin

Question 9

What protein are thick filaments of a muscle fiber primarily made of

Answer 9

Myosin

Question 10

What genetic disorder is characterized by atrophy of skeletal muscle tissue, where muscle tissue is replaced by fat and fibrous tissue

Answer 10

Muscular dystrophy

Question 11

What disorder causes symptoms of lockjaw and prolonged muscle contraction

Answer 11

Tetanus

Question 12

Label skeletal muscles

Question 13

Which muscle group extends the knee joint

Answer 13

Quadriceps