ch. 9

Question 1

four special characteristics of muscles

Answer 1

excitability
contractility
extensibility
elasticity

Question 2

function of muscle tissue

Answer 2

move, position/posture, support, control, heat generation

Question 3

muscle tissue types

Answer 3

skeletal
cardiac
smooth

Question 4

skeletal muscle is found

Answer 4

attached to skeleton help us move

Question 5

skeletal muscle is like

Answer 5

long muscle fibers

Question 6

muscle fibers are long

Answer 6

multinucleated cells, striated

Question 7

skeletal muscle is v/i

Answer 7

voluntary control

Question 8

cardiac muscle is located

Answer 8

heart

Question 9

cardiac muscle is

Answer 9

can have multi nuclei but usually only one

Question 10

cardiac muscle fibers are connected together with

Answer 10

intercalated discs

Question 11

intercalated discs are

Answer 11

gap junctions and desosomes

Question 12

cardiac muscle straited?

Answer 12

appear that way

Question 13

desosomes allow

Answer 13

cytoskeletal structures inside the cell

Question 14

cardiac muscle v/i

Answer 14

involuntary

Question 15

smooth muscle nuclei is

Answer 15

uninucleate

Question 16

striations of smooth muscle?

Answer 16

none

Question 17

where is smooth muscle found

Answer 17

walls of hollow organs

Question 18

smooth muscle i/v

Answer 18

I

Question 19

skeletal needs 2 places to attach aka

Answer 19

origin or insertion

Question 20

orgin moves

Answer 20

less during action

Question 21

insertion moves

Answer 21

during contraction/action

Question 22

skeletal muscle attach 2 ways

Answer 22

direct
indirect

Question 23

direct attachment

Answer 23

fusion of bone around tissue

Question 24

indirect attachment

Answer 24

tendon/ muscle to bone

Question 25

aponeurosis is

Answer 25

white color, tendon stretched into a sheet

Question 26

epimysium

Answer 26

covers surface of skeletal muscle

Question 27

muscle fascicles have

Answer 27

perimysium surrounding them

Question 28

muscle of fascicles are actually

Answer 28

muscle fibers

Question 29

muscle fibers covered by

Answer 29

endomysium

Question 30

muscle fibers is actually

Answer 30

myofibrils

Question 31

skeletal muscle mebrane

Answer 31

sarcolemma

Question 32

sarcoplasm means

Answer 32

plasma surrounding fleshy muscle

Question 33

t tubules

Answer 33

skeletal muscle connected to satcolemma

Question 34

t tubules allow

Answer 34

electrical signals to pass to go deep
-vital for contraction

Question 35

sarcoplasmic retriculum is

Answer 35

specialized to store calcium ions to cause contraction

Question 36

myofibrils are made up of

Answer 36

sarcomeres

Question 37

sarcomeres are the

Answer 37

smallest contractile unit

Question 38

how do sarcomeres shorten

Answer 38

bc within they have protein myofilaments

Question 39

skeletal muscle filaments

Answer 39

thick myosin
thin actin
elastic titin

Question 40

thick filaments

Answer 40

flexible tail with hing between two heads
so we can wrap around

Question 41

thick filament cross bridge

Answer 41

contraction allow heads to bind to thin filaments

Question 42

when muscle is rest

Answer 42

actin covered up by tropomyosin and then troponin

Question 43

troponin decides

Answer 43

if tropomyosin binds or un binds

Question 44

sliding filament theory states

Answer 44

thick and thin filaments must slide past eachother due to formation of cross

Question 45

every muscle fiber in the body has a

Answer 45

motor nueron

Question 46

neuromuscular junction

Question 47

little bit of force then only stimulate

Answer 47

a couple motor units

Question 48

motor neurons stimulate

Answer 48

muscle fibers

Question 49

average motor unit is

Answer 49

1 neuron to 100 muscle fibers