Muscle Tissue

Question 1

Specialized proteins for movement…

Answer 1

Actin and myosin, which make up myofilaments

Question 2

Muscle plasma membrane…

Answer 2

Sarcolemma

Question 3

Cytoplasm of muscle cells…

Answer 3

Sarcoplasm

Question 4

Voluntary control of this type of muscle…

Answer 4

Skeletal Muscles

Question 5

Visceral Muscles are…

Answer 5

Internal Organs

Question 6

Functional characteristics of muscle tissue…

Answer 6

Excitability, contractility, extensibility, elasticity

Question 7

Three types of muscle tissue…

Answer 7

Skeletal, cardiac, smooth

Question 8

Three types of connective tissue wrappings…

Answer 8

Epimysium, perimysium and endomysium

Question 9

Bundle of muscle fibers within a muscle…

Answer 9

Fascicle

Question 10

Connective tissue wrapping around a muscle (organ)…

Answer 10

Epimysium

Question 11

Connective tissue wrapping around a fascicle…

Answer 11

Perimysium

Question 12

Connective tissue wrapping around a muscle fiber…

Answer 12

Endomysium

Question 13

Complex organelle composed of bundles of myofilaments…

Answer 13

Myofibrils

Question 14

End of a muscle attached to the immovable bone, responsible for stability…

Answer 14

Origin

Question 15

End of a muscle attached to the movable bone, responsible for movement…

Answer 15

Insertion

Question 16

Transient depolarization event…

Answer 16

Action potential

Question 17

Neurons that stimulate muscles to contract…

Answer 17

Motor neurons

Question 18

Nervous system that deals with voluntary control…

Answer 18

Somatic nervous system (SNS)

Question 19

Where a motor neuron meets a muscle fiber…

Answer 19

Neuromuscular junction

Question 20

Ions that stimulate action potential…

Answer 20

Sodium (Na+) and potassium (K+)

Question 21

Acetylcholinesterase is…

Answer 21

Enzyme that degrades ACh to close receptor gate

Question 22

Repolarization occurs (direction; period)…

Answer 22

In the same direction as depolarization; during refractory period

Question 23

Type of contraction without movement…

Answer 23

Isometric contraction

Question 24

Type of contraction with movement…

Answer 24

Isotonic contraction

Question 25

Process that occurs during latent period of a muscle twitch…

Answer 25

Excitation-contraction coupling

Question 26

Contractile movement of smooth muscles…

Answer 26

Peristalsis

Question 27

When the longitudinal layer of smooth muscle contracts…

Answer 27

The organ dilates and contracts

Question 28

When the circular layer of smooth muscle contracts…

Answer 28

The organ elongates

Question 29

Alternating contractions and relaxations of smooth muscles that mix and squeeze substances through lumen of hollow organs…

Answer 29

Peristalsis

Question 30

Outer layer of smooth muscle…

Answer 30

Longitudinal layer

Question 31

Inner layer of smooth muscle…

Answer 31

Circular layer

Question 32

Factors in the force of muscle contraction…

Answer 32

Number of muscle fibers contracting, relative size of the muscle, degree of muscle stretch

Question 33

After ATP are hydrolyzed, they are regenerated by…

Answer 33

Interaction of ADP with creatine phosphate, anaerobic glycolysis or aerobic respiration

Question 34

Structure found within the I-band, between sarcomeres…

Answer 34

Z-disc

Question 35

Zone found within the A-band of a sarcomere…

Answer 35

H-zone

Question 36

If a muscle attaches directly…

Answer 36

The epimysium of the muscle is fused to the periosteum of a bone

Question 37

If a muscle attaches indirectly…

Answer 37

Connective tissue wrappings extend beyond the muscle as a tendon or aponeurosis