Chapter 7 Muscles

Question 0

Skeletal

Answer 0

Striated,voluntary,attaches to bones

Question 1

What are the types of muscle tissue

Answer 1

Skeletal
Smooth
Cardiac

Question 2

Smooth muscle

Answer 2

No striations,involuntary,walls of blood vessels and abdominal organs

Question 3

Cardiac muscle

Answer 3

Striations,involuntary,heart wall

Question 4

Hierarchy of muscle structure

Answer 4

Muscle-fascicles-muscle fibers-myofibrils-filaments

Question 5

Aponeurosis

Answer 5

Attach muscle to other muscles and connective tissues

Question 6

Tendons

Answer 6

Attach muscle to bone

Question 7

Skeletal muscle fibers

Answer 7

Sarcolemma-plasma membrane
Sarcoplasm-cytoplasm
Contain myofibrils-contractile elements
Actin filaments-thin-striations
Myosin-thick-striations
Actin has troponin and tropomyosin

Question 8

Sarcomere

Answer 8

Contractile units

Zline-zline

Question 9

Sarcoplasm reticulum

Answer 9

Smooth er in muscle cell

Question 10

Transverse tubule

Answer 10

Penetrate into fiber so they lie alongside and contact sarcoplasmic reticulum

Question 11

Neuromuscular junction

Answer 11

Connection between axon of motor neuron and sarcolemma of muscle fiber

Question 12

Synaptic cleft

Answer 12

Space between axon and sarcolemma

Question 13

Ach acetylcholine

Answer 13

Vesicles with neurotransmitter

Question 14

Oxygen debt

Answer 14

Amount of oxygen required to metabolize lactic acid

Deep breathing occurs until debt is paid

Question 15

Endurance training

Answer 15

Increases efficiency of aerobic cellular resp by increasing number of mitochondria,efficiency of getting oxygen from blood,concentration of myoglobin

Question 16

Muscle tone

Answer 16

Partial contraction in relaxed muscle

Keeps muscle ready

Question 17

Atrophy

Answer 17

Loss of muscle tone

Question 18

Hypertrophy

Answer 18

Strength training

Increase in myofibril number in muscle fibers

Question 19

Cardio endurance training

Answer 19

Improves efficiency of muscle action

Lower heart rate