1.2 -- structure of skeletal muscle

Question 1

does skeletal muscle have striations?

Answer 1

yes

Question 2

are skeletal muscles voluntary?

Answer 2

yes

Question 3

origin

Answer 3

attachment of a muscle that remains relatively fixed during muscular contraction

Question 4

insertion

Answer 4

the attachment of a muscle tendon to a moveable bone or the end opposite the origin

Question 5

action

Answer 5

the movement that the skeletal muscle is doing

Question 6

body

Answer 6

the thick/main part of a skeletal muscle

Question 7

bone

Answer 7

dense, hard connective tissue composing the skeleton

Question 8

tendon

Answer 8

connects muscle to bone

Question 9

skeletal muscle

Answer 9

a muscle that is connected to the skeleton to form part of the mechanical system that moves the limbs & other parts of the body

Question 10

fascicle

Answer 10

bundle of muscle cells

Question 11

epimysium

Answer 11

a sheath of fibrous elastic tissue surrounding a muscle

Question 12

perimysium

Answer 12

the connective tissue that surrounds fascicles

Question 13

endomysium

Answer 13

connective tissue surrounding a muscle fiber

Question 14

muscle fiber

Answer 14

long, slender skeletal muscle cells

Question 15

sarcolemma

Answer 15

muscle cell membrane

Question 16

myofibril

Answer 16

tightly packed filament bundles found within skeletal muscle fibers

Question 17

sarcomere

Answer 17

contractile (doing the contractions) unit of a muscle fiber

Question 18

z line

Answer 18

the line formed by the attachment of actin filaments between two sarcomeres of muscle fiber in striated muscle cells

Question 19

m line

Answer 19

located in the center of the sarcomere