Muscle Tissue

Question 1

Name the 3 main types (categories) of muscle.

Answer 1

skeletal muscle, cardiac muscle and smooth muscle.

Question 2

On function of skeletal muscle is to produce ______ ________.

Answer 2

skeletal movement

Question 3

What does skeletal muscle maintain?

Answer 3

It maintains posture and body position.

Question 4

Skeletal muscle supports ____ tissue.

Answer 4

soft

Question 5

What does skeletal muscle guard?

Answer 5

entrances and exits

Question 6

What can skeletal muscle maintain?

Answer 6

it can maintain body temperature

Question 7

Skeletal muscle stores ____ reserves.

Answer 7

nutrient

Question 8

What are the 4 main components of muscle?

Answer 8

There is muscle tissue (muscle cells or fibres), connective tissue, nerves and blood vessels.

Question 9

Name an example of a connective tissue

Answer 9

fascia

Question 10

Fascia cover _____ ______ and _______ them from each other.

Answer 10

body structures, separate

Question 11

How many layers of connective tissue do muscles have?

Answer 11

3

Question 12

Name the 3 connective tissues that muscles have.

Answer 12

Epimysium, Perimysium and endomysium

Question 13

The outer connective tissue is _______.

Answer 13

Epimysium

Question 14

The middle connective tissue is _______.

Answer 14

Perimysium

Question 15

What is the inner connective tissue called?

Answer 15

Endomysium

Question 16

Generally, what are the functions of the muscle connective tissues?

Answer 16

To support, bind, insulate, transport and provide storage

Question 17

Epimysium is the _____ _____ layer.

Answer 17

exterior collagen

Question 18

What is Epimysium connected to?

Answer 18

deep fascia

Question 19

What does epimysium separate muscle from?

Answer 19

epimysium separates muscle from surrounding tissue

Question 20

What Perimysium surround?

Answer 20

It surrounds muscle fascicles (muscle fibre bundles).

Question 21

What does perimysium tissue contain?

Answer 21

It contains blood vessels and nerve supply to the fascicles.

Question 22

Endomysium surrounds individual muscle ___ ( ____ ______).

Answer 22

cells, muscle fibres

Question 23

Endomysium tissue contains _____ and ____ ______ contacting muscle cells.

Answer 23

capillaries, nerve fibres

Question 24

What is the function of Endomysium (in separation) ?

Answer 24

To separate and electrically insulate muscle cells from each other.

Question 25

Where do endomysium, perimysium and epimysium come together?

Answer 25

at the ends of muscles

Question 26

connective tissues come together at the ends of muscles to form what?

Answer 26

To form connective tissue attachment to the bone matrix.

Question 27

A tendon is a _____ of connective tissues.

Answer 27

bundle

Question 28

Aponeurosis is a ___ of connective tissue.

Answer 28

sheet

Question 29

Muscles have extensive _____ systems.

Answer 29

vascular

Question 30

Name 3 things that the vascular system of muscles does.

Answer 30

Supplies large amounts of oxygen, supplies nutrients and carries away wastes.

Question 31

Skeletal muscles are _____ muscles.

Answer 31

voluntary

Question 32

What are voluntary muscles controlled by?

Answer 32

Nerves of the central nervous system. (brain and spinal cord).

Question 33

The skeletal muscle is made up from _____ that are made up of ______ _______ or ______, these consist of _______ which are made up of ________.

Answer 33

Fascicles Muscle cells/fibers myofibrils myofilaments

Question 34

Myofilaments are arranged in a _______.

Answer 34

myofibril

Question 35

You can get ____ and _____ myofilaments.

Answer 35

thick, thin

Question 36

The thin filaments are known as _______.

Answer 36

Actin

Question 37

The thick filaments are known as _______.

Answer 37

Myosin

Question 38

The I band on the myofibril is _____ in colour.

Answer 38

light

Question 39

The A band on the myofibril is _____ in colour.

Answer 39

dark

Question 40

Myofibrils are composed of repeating sections of what?

Answer 40

Sarcomeres :)

Question 41

Name the line you would find at the beginning and end of each sarcomere.

Answer 41

The z line

Question 42

The ___ line is in the centre of the sarcomere.

Answer 42

M

Question 43

what is the zone in the middle of the sarcomere where there are no filaments called?

Answer 43

H Zone

Question 44

Titin is attached to _____.

Answer 44

Myosin

Question 45

What is a sarcomere?

Answer 45

A sarcomere is the basic unit of a muscle.

Question 46

What do sarcomeres contain?

Answer 46

fibrous proteins known as myofilaments

Question 47

Name the 2 types of myofilaments.

Answer 47

Actin and myosin

Question 48

Is actin thick or thin?

Answer 48

Actin is a thin filament

Question 49

Is myosin thick or thin?

Answer 49

Myosin is a thick filament

Question 50

What is the darkest strip in the dark A band called?

Answer 50

The M line

Question 51

What is the dark strip in the light I band called?

Answer 51

The Z line

Question 52

What zone is within the A band?

Answer 52

the H zone

Question 53

The H zone is where the _____ filaments are.

Answer 53

myosin

Question 54

The I bands is where the _____ filaments are.

Answer 54

actin

Question 55

What theory is used for the contraction of muscles?

Answer 55

The sliding filament theory

Question 56

Thin Filaments (_____) of sarcomere slide toward the _____ line, alongside thick filaments (_____).

Answer 56

actin, M , myosin

Question 57

When the actin slides towards the M line ____ bands get smaller.

Answer 57

I

Question 58

when actin slides toward the M line, what gets bigger?

Answer 58

The zone of overlap (H Zone)

Question 59

___ lines move closer together upon contraction.

Answer 59

Z

Question 60

Name the 3 parts to the structure of a myosin molecule.

Answer 60

myosin tail, hinge and myosin head.

Question 61

_____ molecules make up thick filaments.

Answer 61

Myosin

Question 62

Myosin is a complex _____.

Answer 62

protein.

Question 63

Myosin heads have _____ binding sites and have the enzyme ______.

Answer 63

ATP, ATPase

Question 64

Myosin proteins make up the thick filaments in the ______.

Answer 64

sarcomere

Question 65

How do myosin molecules bind to each other?

Answer 65

By binding to another molecule by the tail

Question 66

What is actin?

Answer 66

Strands of globulin protein molecules.

Question 67

Each actin myofilament consists of ____ strands wound together to make a thin filament.

Answer 67

2

Question 68

Each actin molecule has a _____ binding site.

Answer 68

myosin

Question 69

What protein is wrapped around the actin filaments?

Answer 69

Tropomyosin

Question 70

What type of protein is tropomyosin?

Answer 70

Tropomyosin is a regulatory protein.

Question 71

How is tropomyosin activated?

Answer 71

It's activated by Ca binding to Ca binding site.

Question 72

The Calcium-binding protein bound to tropomyosin is called ______.

Answer 72

troponin

Question 73

Troponin is bound to _____ strands.

Answer 73

tropomyosin