chapter 10

Question 1

skeletal muscles are referred to as

Answer 1

muscle fibers

Question 2

Fascicles

Answer 2

bundles of muscle
fibers

Question 3

three layers of connective tissue occur within

Answer 3

endomysium, perimysium and epimysium

Question 4

endomysium

Answer 4

innermost
delicate
areolar surrounds and electrically insulates each muscle fiber

Question 5

perimysium

Answer 5

sounds the fascicles
dense irregular connective tissue
blood vessels nad nerves

Question 6

Epimysium

Answer 6

dense irregular
surrounds the whole skeletal muscle

Question 7

deep facia

Answer 7

dense irregular tissue
separates individual muscles
binds together muslces
forms sheath
fills space between muslces

Question 8

flat sheet formed from a tendon

Answer 8

aponeurosis

Question 9

less mobile attachment

Answer 9

origin

Question 10

more mobile attachted

Answer 10

insertion

Question 11

2 main structures are unique to muscle fibers

Answer 11

t- tubules and sarcoplasmic retticulum

Question 12

cytoplasm of muscle fiber

Answer 12

sarcoplasm

Question 13

satelite cells fuse with damaged muscle fiber and assist in repair and regeneration

Answer 13

skeltal muslce injured

Question 14

80& of volume of a muscle fiber is composed of long cylindrical structures

Answer 14

myofibrils

Question 15

sacromere

Answer 15

functional contractile of a skeletal muscle fiber

Question 16

tropomyosin and troponin are what

Answer 16

thin flagments

Question 17

each spherical moleclue

Answer 17

g actin

Question 18

fligament composed of a strand of g actin molecule is called

Answer 18

f actin

Question 19

sacromere

Answer 19

composed of thick and thin
distance between two adjacents z disc

Question 20

I bands

Answer 20

Extend from both directions of a z disc
light band containing thin f
only connection proteins

Question 21

m line

Answer 21

thin
dark protein dics
center of H zone here thick f attach

Question 22

H zone

Answer 22

lighter region
middle of a band
think f only

Question 23

A band

Answer 23

Dark band middle of sarcomere
entire thick f

Question 24

cardiac

Answer 24

uninucleate cells
branching , striated

Question 25

smooth

Answer 25

spindle shaped central nuclei no striations involuntary

Question 26

skeletal

Answer 26

-Elonated cells -multiple peripheral nuclei -visible striations - voluntary

Question 27

cardiac

Answer 27

branching cell single central nervous nucleus visible striations involuntary

Question 28

smooth muscle

Answer 28

spindle - shaped cells single central nucleus lack visible striations involuntary

Question 29

myofibril

Answer 29

cylindrical bundle of myofilaments gives skeletal muscle its stripes

Question 30

myofilament

Answer 30

ultramicroscopic threadlike structure made up of various protein molecules

Question 31

thin m

Answer 31

main protein is actin held together by z lines t&t

Question 32

thick m

Answer 32

main protein myosin held together at middle by m line

Question 33

tendon, muscle, fascicle, epimysium

Answer 33

muscle structure covered by epimysium

Question 34

perimysium,part of a fascicle

Answer 34

Fascicle surrounded by perimysium

Question 35

surround by endomysium

Answer 35

muscle fiber

Question 36

vary in size, speed of contraction, amount of force , endurance

Answer 36

fiber types

Question 37

dark red good aerobic metabolism low force

Answer 37

slow oxidative

Question 38

big fast contracting pale white high force

Answer 38

Fast glycolytic

Question 39

fast contracting somewhat fatigue medium force between intermediate

Answer 39

fast oxidative