Exam 3 theory

Question 1

A place where the fixed end attaches to a bone, cartilage, or connective tissue (typically stationary, where the muscle begins)

Answer 1

origin

Question 2

site where the movable end attaches to another structure (typically movable, where muscles ends)

Answer 2

insertion

Question 3

skeletal muscles are named by

Answer 3

muscle location
muscle shape
muscle size

Question 4

muscle location

Answer 4

bone or body region

Question 5

muscle shape

Answer 5

deltoid= triangle

Question 6

muscle size

Answer 6

maximus= largest
brevis= short

Question 7

the direction in which muscle fibers run in reference to an imaginary line, usually the midline of the body or the longitudinal axis of limbs.

Answer 7

Direction of Fibers

Question 8

Number of Origins: example,

Answer 8

biceps brachii has two origins

Question 9

when named by attachment sites e.g., points of origins and insertions, origins are always written first; example: sternocleidomastoid

Answer 9

Location of the Attachments

Question 10

named for the movement they produce; example: adductor, flexor, extensor

Answer 10

Muscle Action

Question 11

deals with the structures of the body that are visible to the naked eye

Answer 11

gross anatomy

Question 12

layer of dense irregular connective tissue(does not show specific pattern)

Answer 12

epimysium

Question 13

Each ____ has ___ concentric layers or wrapping of connective tissue.

Answer 13

skeletal muscle, 3

Question 14

divides the muscles into internal compartments

Answer 14

perimysium

Question 15

___surrounds each skeletal muscle

Answer 15

Endomysium

Question 16

what makes up a muscle and attach muscles to bone, cartilage, and skin or another muscle.

Answer 16

epimysium
perimysium
endomysium

Question 17

tendons that form thick, flattened fiber

Answer 17

aponeuroses

Question 18

fibrous connective tissue that attaches muscle to bone

Answer 18

tendons

Question 19

Formation of structure skeletal muscle fiber are

Answer 19

myoblast
muscle cell
skeletal muscle cell
stiated

Question 20

Myoblast

Answer 20

give rise to muscle cell

Question 21

muscle cells are the

Answer 21

longest cell

Question 22

skeletal muscle cells are

Answer 22

multnucliated
stiated

Question 23

External appearance and muscle view

Answer 23

multinucliated
stiated

Question 24

sarcolemma

Answer 24

muscle plasma membrane

Question 25

sarcoplasm

Answer 25

muscle plasma or cytoplasm

Question 26

made up of 2 terminal cisterna (1 T tubule)

Answer 26

Triad

Question 27

a myoblast that remains in adult skeletal muscle tissue

Answer 27

myosatellite

Question 28

growth, prepare and heal muscle

Answer 28

myoblast

Question 29

___ conduct electrical impulses, called _____

Answer 29

T-tuble(Triad) action potential

Question 30

made up of a hundreds to thousand of fine cylindrical fibers

Answer 30

Myofilbrils

Question 31

___ is responsible for skeletal muscle fiber contraction

Answer 31

myofibrils

Question 32

_____ are made of thin/thick protein filament called____

Answer 32

myofibrils myofilaments

Question 33

_____ are thin and thick filament

Answer 33

myofilament

Question 34

what is the level of functional organization and skeletal muscle fibers

Answer 34

skeletal muscle>muscle fascicle>muscle fiber>myofibril>sacromere

Question 35

__where all the the dirty works are done

Answer 35

sacromere (basic contractile)

Question 36

unite of myocyte (muscle fiber)

Answer 36

thin filament Thick filament

Question 37

Thin filament

Answer 37

actin

Question 38

thick filament

Answer 38

myosim

Question 39

how does sacromere work

Answer 39

through cross-bridge

Question 40

interaction between acting and myosim

Answer 40

cross-bridge

Question 41

____ interact with ____ to form ______ where we get _____

Answer 41

actin, myosim cross-bridge contraction

Question 42

to get full power of sacromere contraction they should have an optimum length of _____

Answer 42

actin

Question 43

Surrounding myofibrils is the _______

Answer 43

sarcoplasmic reciculum (SR)

Question 44

main function of the sarcoplasmic reticulum is

Answer 44

muscle contraction

Question 45

calcium is needed in ___

Answer 45

muscle contraction neurotransmitter release blood clotting

Question 46

___ is surrounded by epimysium and contains muscle fascicles

Answer 46

skeletal muscle

Question 47

____ is surrounded by the perimysium and contains muscle fibers

Answer 47

muscle fascicle

Question 48

___ is surrounded by endomysium and contain myofibrils

Answer 48

muscle fibers

Question 49

____ is surrounded by sarcoplasmic reticulum and consists of sarcomeres

Answer 49

myofibrils

Question 50

sacromere

Answer 50

contain thick and thin filament

Question 51

Muscle fibers develop through the fusion of embryonic cells are called ___

Answer 51

myoblast

Question 52

Answer 52

Triad

Question 53

Answer 53

Terminal cistema

Question 54

Answer 54

T-tubules

Question 55

Answer 55

Myofibrils

Question 56

Answer 56

Sarcoplasma

Question 57

Answer 57

Sarcoplasmic reticulum

Question 58

Answer 58

Sarcolemma

Question 59

Answer 59

Myofibrils

Question 60

Answer 60

Nuclei

Question 61

Answer 61

Thin filament

Question 62

Answer 62

Thick filament

Question 63

Answer 63

Myofibrils

Question 64

Answer 64

Thin filament

Question 65

Answer 65

Thick filament