Chapter 6 Flashcards
Why are these tissue needed in muscle
Gives muscle support
What general properties
Irritability contract ability extensibility elasticity
List connective tissue define
Fascia holds muscle I place attach skin. Epimysium holds all cell in given muscle Perimysium holds group Cells in muscle Endomysium on surface of one muscle cell Tendon extends beyond muscle attach bone
What molecule of thick myofilaments what does look like
Myosin
Golf club on its side
What the name thin myofilaments draw what looks like
Made up actin
What color a band what molecules
Dark
Myosin actin exist
H zone center
What color of I band what molecules
Light band
Actin alone
Z line at center
When muscles change in size do molecules change in size
No stay same length
Why do muscle change in size
Molecules slide past each other
Charestics muscle at rest
Polarized +-
Ca++ on endoplasmic reticulum
Actin myosin seperate
ATP exist Energy locked
Muscle contract
Depolarized +/+
Ca++ released from endoplasmic reticulum
Actin myosin attach
Adp exist. Energy avaliable
What 2 consequences
Troopomyosin
Phosphorous from ATP
How does nervous system
Motor neuron
Form chemicial called cell acetylcholine
Why do we get goose bumps with muscle terms
Last attempt warm body
Sacromer
Distance from one z line to next
