A&p 1 Muscular System

Front 1

Whats the 4 characteristic of muscle Tissue?

Back 1

Irritability

contracility

Extensibility

Elasticity

Front 2

Whats Irritability ?

Back 2

Responds to stimulus

Front 3

Whats contracility?

Back 3

Once a muscle cell is stimulated it contract it shorten

Front 4

Whats extensibility?

Back 4

ability to be stretched

Front 5

Whats Elasticity?

Back 5

Retract to original length

Front 6

Whats the 4 functions of the skeletal muscle?

Back 6

Movement

Support

Protection

Heat Production

Front 7

What is Thick myofilament composed of?

Back 7

Myosin

Front 8

What is thin myofilament composed of?

Back 8

Actin

Tropomyosin

Troponin

Front 9

What is a skeletal muscle cell called?

Back 9

Muscle Fiber

Front 10

Muscle fibers are _______ and ______

Back 10

Long

Cylindrical

Front 11

What is the Sacolema?

Back 11

Cell membrane

Front 12

What is the sacoplasm?

Back 12

Cytoplasm

Front 13

Are Muscle fibers multinucleated cells? Yes or No

Back 13

Yes

Front 14

Does muscle fibers have striations? Yes or No

Back 14

Yes

Front 15

What is myofibils ?

Back 15

The parts of the muscle fibiers that contain the contractile proteins they are long & cylindical

Front 16

What do the ability of the hedged head of the thick myofilament have the ability to do?

Back 16

Move back & forth pivot

Front 17

What is the area called on the actin? What is the actin site?

Back 17

Actin site

Act as a magnet for the myosin head any time the myosin head is near the actin site it attaches to it

Front 18

What do Tropomysin do?

Back 18

is a long thread that Covers the active site on a actin

Front 19

is there to 2 Tropomysins? Where Yes and No

Back 19

Yes

Both covering on the 2 strands of actin

Front 20

Whats the 3 pieces to the protein troponin?

Back 20

one piece attaches to tropomysin

second piece attach to actin

binding site for calcium

Front 21

On each actin is there an actin site ? Yes or no Whats covering them? Whats periodically spaced?

Back 21

Yes

Tropomysin

Troponin

Front 22

The thick & thin myofilaments are going to be arranged into what are called?

Back 22

Sacromere

Front 23

Whats a sacromere?

Back 23

basic contractile unit of a muscle fiber

so when the muscle fiber is stimulated to contract absolute smallest piece that is physically going to shorten

Front 24

An order to hold the thick myofilment in place what would you use and what do they do?

Back 24

Run a band of stabilizing proteins down the center of them

They hold the thick myofilment in place so they wont move around keep them spaced apart

Front 25

Take some thin myofilaments over lap the thick ones on each side they made up as actin, troponin, tropomysin ..........

Back 25

............

Front 26

What would you use to hold the thin myofilaments in place?

Back 26

Another line of stabilizing proteins

Front 27

Whats is the stabilizing protein band called?

Back 27

The M(middle) Line get repeated over and over again

Front 28

Whats is the band of stabilizing protein at the end of the sacromere is called?

Back 28

Z line

Front 29

If you go from the beginning of the thick myafilment in one sacromere to the end of the thick myafilments in the same sacromere what is it called

Back 29

An A Band

Front 30

Whats the 2 different parts of the A band

Back 30

A part where thick & thin myafilments over lap each other (Zone of overlap)

A part in the center where you only have only thick myafilments

Front 31

What band is the zone of over lap at where you have the thick & thin myafilments over lap each other ?

Back 31

A band

Front 32

Whats the H zone?

Back 32

Thick myafilments center

Front 33

2 zones of overlap & an H zone make up an entire ______ band?

Back 33

A

Front 34

Why is the H zone is not gonna stain as darkly as the zone of over lap?

Back 34

Because its only thick myafilments but in the zone of overlap it have thick & thin myafilaments twice as much stuff in there its gonna stain more darkly

Front 35

To one A band end to the next A band begins

To the end of thick myafilments in one scaromere to the beginning of thick myafilments in the next sacromere what is band is that called?

Back 35

I band

Front 36

Why is the I band not be as dark as the A band?

Back 36

All they contain is thin myafilment

Front 37

What band is the dark line A or I band?

Back 37

A band

Front 38

What band is the light line A or I band?

Back 38

I band

Front 39

What is the line going down the center of the I band?

Back 39

Z line

Front 40

From one ____ line to the next is the entire length of the_______?

Back 40

Z

Sacromere

Front 41

Within the sacromeres the thick myafilments are found in the center those would form?

Back 41

A bands

Front 42

Within the muscle fiber you find _________ why would you find that?

Back 42

mitochondria?

Making atp to keep up with the muscle fiber

Front 43

What is a T-tubuleas?

Back 43

Projection of sacrolema that go into the muscle fiber

Front 44

What is a sacroplasmic reticulum?

Back 44

is smooth endoplasmic reticulum stores ca++

Front 45

The ends of the sacroplasmic reticulum is enlarged compared to the rest of it those enlarged ends have a name what is it called

Back 45

Terminal sternum

Front 46

Most of the Calcium is stored in the ______ of the ends of the sacroplasmic reticulum

Back 46

Terminal Sternum

Front 47

Whats is a triad?

Back 47

Is a T tubule & 2 terminal sternum

specific to skeletal muscle fibers no other muscle tissue have it

Front 48

What stimulate skeletal muscle tissue ?

Back 48

Nerve input

Front 49

Skeletal muscle is _________muscle? What tells it to contract?

Back 49

Voluntary

Nerve input

Front 50

What is a motor neuron?

Back 50

A cell that is found in your central nerves system

Front 51

Your Central nerves Sytem is your _____ & ______?

Back 51

Brain

Spinal Cord

Front 52

Coming off the motor neuron is something called______ is like the electrical wire in your body. Electricity travel down and ends at the _______?

Back 52

Axon

Axon terminal

Front 53

Does the Axon Terminal make contact with the sacrolema? No or Yes

Back 53

NO

Front 54

Where the axon terminal & sacrolema come close to each other this is going to form a __________?

Back 54

Neuromuscular Junction

Front 55

What is the gap between the sacroleme & the axon terminal that prevent them from touching?

Back 55

Synaptic Cleft

Front 56

Electricity is going to be coming down the _____ to get to the_______ but the electricity does not have the ability to jump across the__________ something inside the axon terminal that is going to be used as a massager to let the muscle know that the nerves system wants it to do something located in the axon terminal is going to be called these little packages each what are called a __________ contains a chemical called _______ its going to be released into the synaptic cleft. On the other side of the synaptic cleft have a part of the sacrolema that have a specific name to it what is it called ________. The motor end plate is the area of the sacrolemma that has something in it that you dont find any where else on the sacrolemma what is it __________

Back 56

Axon

Axon Terminal

synaptic cleft

synaptic vesicle

Acetyocholine (ACH)

motor end plate

ACH receptors

Front 57

What part of the sarcolemma contains acetylcholine receptors?

Back 57

motor end plate

Front 58

Motor neuron generates electricity

Back 58

..

Front 59

Whats fast twitch?

Back 59

is Atp production with anaerobic (no Oxygen) , Decrease vascular

Short burst of activity

fatigue easily

Front 60

Whats slow twitch?

Back 60

Make Atp production using aerobic(require oxygen) Increase vascular

Front 61

Whats the 2 types of muscle fibers

Back 61

Slow Twitch

Fast Twitch

Front 62

Whats summation?

Back 62

Apply a stimulus repeatedly over a period of time

Front 63

Whats the 3 phases of single muscle twitch? what do they do?

Back 63

Latent- Inital 1st crossbridge pivot increase in tention

Contraction- Myosin recocks

Relaxtion- No cross bridge

application stimulus once