A&P CHAPTER 9: MUSCLE TISSUE

Question 1

3 TYPES OF MUSCLE TISSUE

Answer 1

SKELETAL, CARDIAC, SMOOTH

Question 2

WHAT TYPE OF MUSCLE IS SKELETAL

Answer 2

VOLUNTARY

Question 3

CARDIAC MUSCLE IS CONTROLLED BY WHAT

Answer 3

HEART’S PACEMAKER

Question 4

WHAT TYPE OF MUSCLE IS SMOOTH

Answer 4

INVOLUNTARY

Question 5

4 CHARACTERISTICS OF MUSCLE

Answer 5

EXCITABILITY, CONTRACTILITY, EXTENSIBILITY, ELASTICITY

Question 6

EXCITABILITY

Answer 6

CELLS’ ABILITY TO RECEIVE AND RESPOND TO STIMULI

Question 7

CONTRACTILITY

Answer 7

ABILITY OF MUSCLE TISSUES TO FOCIBLY BECOME SHORTER

Question 8

EXTENSIBILITY

Answer 8

ABILITY OF MUSCLE TISSUE TO STRETCH OR EXTEND

Question 9

ELASTICITY

Answer 9

ABILITY OF MUSCLE TO RECOIL AFTER STRETCHING

Question 10

SKELETAL MUSCLE FIBER

Answer 10

SINGLE CELL THAT CAN RAPIDLY CONTRACT IN RESPONSE TO STIMULATION AND RELAXES WHEN STIMULATION STOPS

Question 11

WHAT MAKES UP A MUSCLE FIBER

Answer 11

MYOFIBRILS

Question 12

WHAT TWO THINGS MAKE UP MYOFILAMENTS

Answer 12

MYOSIN AND ACTIN, ORGANIZED IN STRIATIONS

Question 13

THE SLIDING FILAMENT THEORY

Answer 13

SARCOMERES SHORTEN AND THICK/THIN FILAMENTS SLIDE PAST EACH OTHER TOWARD THE CENTER OF THE SARCOMERE

Question 14

WHAT NEUROTRANSMITTER STIMULATES SKELETAL MUSCLE TO CONTRACT

Answer 14

ACETYLCHOLINE

Question 15

WHAT CAUSES MUSCLE RELAXATION

Answer 15

ACETYLCHOLINE BEING DECOMPOSED BY ACETYLCHOLINESTERASE

Question 16

THREE STAGES OF ACTION POTENTIAL

Answer 16

END PLATE POTENTIAL GENERATION
DEPOLARIZATION
REPOLARIZATION

Question 17

WHAT HAPPENS DURING END PLATE POTENTIAL GENERATION

Answer 17

ACETYLCHOLINE BINDS TO RECEPTORS WHICH OPENS GATES FOR SODIUM IONS
MAKES SARCOLEMMA LESS NEGATIVE
MORE SODIUM IS GAINED THAN POTASSIUM LOST

Question 18

WHAT HAPPENS DURING DEPOLARIZATION

Answer 18

SODIUM ENTERING REACHING THRESHOLD AND ACTION POTENTIAL IS INITIATED

Question 19

WHAT HAPPENS DURING REPOLARIZATION

Answer 19

SODIUM CHANNELS CLOSE AND POTASSIUM CHANNELS OPEN
SARCOLEMMA RESTORED TO ITS POLARIZED STATE

Question 20

NEUROMUSCULAR JUNCTION

Answer 20

CONNECTION BETWEEN MOTOR NEURON AND MUSCLE FIBER

Question 21

TWO TYPES OF MUSCLE TWITCHES

Answer 21

FATIGUE-RESISTANT SLOW TWITCH
FATIGUEABLE FAST TWITCH

Question 22

TETANIC CONTRACTIONS

Answer 22

SUSTAINED CONTRACTIONS WITH NO RELAXATION AT ALL

Question 23

ISOTONIC CONTRACTIONS

Answer 23

THE LENGTH OF THE MUSCLE CHANGES AND A LOAD IS MOVED

Question 24

ISOMETRIC CONTRACTIONS

Answer 24

MUSCLE DOES NOT SHORTEN OR LENGTHEN, BUILDS TENSIO (MOVING A LOAD THAT IS GREATER THAN MUSCLE CAN HANDLE)

Question 25

CONCENTRIC CONTRACTION

Answer 25

TYPE OF ISOTONIC CONTRACTION MUSCLE SHORTENS TO PERFORM WORK

Question 26

ECCENTRIC CONTRACTION

Answer 26

TYPE OF ISOTONIC CONTRACTION MUSCLE CREATES FORCE AS IT LENGTHENS

Question 27

CREATINE PHOSPHATE

Answer 27

EXCESS ENERGY STORED IN THE MUSCLES TO BE USED TO MAKE MORE ATP MORE OF THIS IS STORED IN MUSCLES THAN ATP

Question 28

LOW TO MODERATE INTENSITY WORKOUT: PATHWAY NEEDED PRODUCTION OF ATP RESULT

Answer 28

GLYCOLYSIS WHICH LEADS TO FORMATION OF PYRUVIC ACID AND AEROBIC RESPIRATION 36 ATP PER GLUCOSE EXHALATION OF CARBON DIOXIDE

Question 29

HIGH INTENSITY WORKOUT: PATHWAY NEEDED PRODUCTION OF ATP RESULT

Answer 29

GLYCOLYSIS WHICH LEADS TO FORMATION OF LACTIC ACID 2 ATP PER GLUCOSE ACCUMULATION OF LACTIC ACID

Question 30

WHAT IS USUALLY THE CAUSE OF MUSCLE FATIGUE

Answer 30

LACTIC ACID ACCUMULATION

Question 31

MOST COMMON TYPE OF SMOOTH MUSCLE

Answer 31

VISCERAL SMOOTH MUSCLE

Question 32

VISCERAL SMOOTH MUSCLE

Answer 32

WALLS OF ALL HOLLOW ORGANS EXCEPT HEART RHYTHMIC PATTERNS OF SPONTANEOUS ACTION POTENTIALS DOES NOT USE RECRUITMENT

Question 33

MULTIUNIT SMOOTH MUSCLE

Answer 33

LARGE LUNG AIRWAYS, LARGE ARTERIES FIBERS ARE INDEPENDENT OF EACH OTHER USES RECRUITMENT

Question 34

WHAT DOES EPIMYSIUM DO

Answer 34

SURROUND SKELETAL MUSCLES

Question 35

WHICH CONTRACTION IS 50% STRONGER THAN THE OTHER WHEN SAME LOAD IS MOVED

Answer 35

ECCENTRIC IS 50% STRONGER THAN CONCENTRIC