Muscle Injuries and Skeletal Muscle Movement

What happens when you twist or pull a muscle or tendon?

• Strain

• Sprain

• Fracture

• Dislocation

Which of the following is a sign of a sprain?

• Bruising

• Itching

• Numbness

• Rash

Tendonitis occurs when the tendon gets ______ or irritated.

• swollen

• bruised

• fractured

• torn

What is the treatment for bursitis?

• Rest, medicine, protect the joint.

• Exercise regularly, ignore the pain.

• Increase physical activity, avoid rest.

• Consume high-calorie diet, avoid medication.

A bruise happens from a hard hit but the skin doesn’t break.

• True

• False

Muscles move because of two main things: a message from a nerve and ______.

• Muscle parts squeeze together

• Muscle parts relax

• Muscle parts expand

• Muscle parts contract

What chemical builds up in muscles causing fatigue?

• Lactic acid

• Carbon dioxide

• Glucose

• Oxygen

Tags

NGSS.HS-LS2-3

During hard exercise, what can't carry enough oxygen to the muscles?

• Blood

• Lungs

• Heart

• Brain

What is the role of glucose in muscle movement?

• Glucose provides energy to help muscles move.

• Glucose acts as a structural component in muscles.

• Glucose is used to store genetic information in muscles.

• Glucose serves as a neurotransmitter in muscle cells.

Tags

NGSS.MS-LS1-7

What starts with an electric signal called an action potential?

• Skeletal muscles need nerve signals to work.

• The heart beats independently of nerve signals.

• Digestive enzymes are released automatically.

• Bones grow without any signals.