chapter 8

Question 1

what are fibrous cells for

Answer 1

designed for contraction

Question 2

what are the 3 types

Answer 2

skeletal
smooth
cardiac

Question 3

what does skeletal muscle do

Answer 3

control by mind
moves bones of the skeleton

Question 4

cardiac muscle

Answer 4

found in heart

Question 5

smooth muscle

Answer 5

carries out unconscious internal movements of the body

Question 6

what are the 3 primary functions

Answer 6

provide motion
maintain posture
generate heat

Question 7

skeletal muscle

Answer 7

straited
rapid contractions
voluntary
need a function nerve supply
most attach to bones

Question 8

what is the muscled fiber

Answer 8

endomysium

Question 9

what is aponeuroses

Answer 9

attach to bones or muscles by broad sheets of fibrous tissue

Question 10

origin

Answer 10

more stable site
does not move much

Question 11

insertion

Answer 11

site that undergoes the most muscle contreacts

Question 12

antagonist

Answer 12

muscle or muscle group that directly opposes the action of prime mover

Question 13

what are myofibrils made of

Answer 13

actin and myosin

Question 14

A bands

Answer 14

thick myosin filaments

Question 15

I bands

Answer 15

thin actin filaments

Question 16

sacromere

Answer 16

basic contracting unit

Question 17

sarcomere

Answer 17

series of protein filaments that make up contractile

Question 18

2 Primary protein filaments responsible for contracftion

Answer 18

thick , dark myosin
thin light actin

Question 19

synaptic vesicles

Answer 19

at the end of nerve fiber contain neurotransmitter