DN 5.1 muscles

Muscle fatigue sets in due to the nonavailability of 

• calcium
• ATP
• actin binding sites
• sodium

Tags

NGSS.HS-LS2-3

What does the latin term for cardi mean?

• skeleton

• heart

• brain

• smooth muscle

What happens to a muscle when it contracts?

• It crosses a neuron

• It stretches

• It gets longer

• It shortens

What must happen for a muscle to contract?

• The muscle be able to stretch

• It must be elastic

• cells must be stimulated

• It must have contractibility

What is extensibility?

• the capacity to lengthen and stretch

• The capacity to shorten and contract

• The capacity to transmit a nerve signal

• The ability to contract

What is the ability for a muscle to return to it's resting length?

• elasticity

• excitability

• extensibility

• contractibility

What is it when you have control over a muscle?

• excitability control

• elasticity

• voluntary control

• involuntary control

Which is an example of involuntary control?

• digestive system

• jumping jacks

• running

• sleeping

Tags

NGSS.HS-LS1-3

How does the sarcomere shorten (contract) ?

• The myosin filaments contract

• The myosin is pulled by the actin

• The actin filaments contract

• The actin is pulled by the myosin

What two chemicals are necessary for muscle contraction to occur?

• Niacin and Potassium

• Sodium and Potassium

• Calcium and ATP

• Acetylcholine and Potassium