Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

10 Cards in this Set

  • Front
  • Back

four steps of contractile cycle

1. hydrolize ATP
2. bind to actin --> cross bridges
3. cross bridges rotate toward sacromere
4. cross bridges detach

rigor mortis

cross bridges cannot detach from actin

neuromuscular junction

synapse btwn somatic motor neuron & skeletal muscle fiber

motor end plate

region of sacrolemma opposite the synaptic bulbs

3 ways to produce ATP

1.create phosphate
2.breakdown of glycogen & production of pyuric acid
3. pyruvic, fatty and amino acids

1st source of energy for muscle contractions

creatine phosphate

latent period

delay btwn stimulus and contraction

contraction period

cross bridges form

relaxation period

calcium goes back, myosin covered with tropomyosin, heads detach

refractory period

period of lost excitability