Test 2

Question 1

Inability of muscle to maintain force of contraction after prolonged activity

Answer 1

Muscle fatigue

Question 2

Small amount of tension/contraction of muscle even at rest

Answer 2

Muscle tone

Question 3

Autoimmune disease causing chronic, progressive damage of neuromuscular junction (antibodies bind to AcH sites)

Answer 3

Myasthenia gravis

Question 4

Sudden involuntary contraction of single muscle

Answer 4

Spasm

Question 5

Painful spasmodic contraction

Answer 5

Cramp

Question 6

Spasmodic twitching made involuntarily by normally voluntary muscle

Answer 6

Tic

Question 7

Rhythmic, involuntary, purposeless contraction that produces quivering/shaking movement

Answer 7

Tremor

Question 8

A single muscle cell

Answer 8

Fiber (myofiber)

Question 9

Bundle of muscle fibers (cells)

Answer 9

Fascicle

Question 10

Organelle in muscle fiber composed of filaments

Answer 10

Myofibril

Question 11

Fibrous protein molecules within myofibrils

Answer 11

Filaments

Question 12

Surrounds the entire muscle

Answer 12

Epimysium

Question 13

Surrounds a fascicle

Answer 13

Perimysium

Question 14

Surrounds a fiber (myofiber)

Answer 14

Endomysium

Question 15

How do skeletal muscle fibers form during embryonic development?

Answer 15

Myoblasts fuse to form one muscle fiber

Question 16

Sensory neurons are ________ neurons

Answer 16

Afferent

Question 17

Motor neurons are ________ neurons

Answer 17

Efferent

Question 18

Shaft of bone

End of bone

Answer 18

Diaphysis

Epiphysis

Question 19

Where diaphysis and epiphysis meet

Answer 19

Metaphyses

Question 20

Other name for growth plate of bone

Answer 20

Epiphysial plate

Question 21

Cartilage covering epiphysis

Answer 21

Articular cartilage

Question 22

Dense irregular connective tissues that covers the bone (except at articular cartilage)

Answer 22

Periosteum