PMuscleSoreness

Open Ended

​4.3 Covers:

• ​Safety Guidelines

• Exercising in the Heat/Cold (reviewed last week)

• Muscle Soreness

• Treatment of Minor Injuries​ (reviewed last week)

Multiple Choice

What type of muscle makes up the muscular system?

• Skeletal

• Cardiac

• Smooth

• Skeletal, Cardiac and Smooth

Multiple Choice

Fast twitch muscle cells:

• Use energy slowly

• Would be heavily present in the muscles of a sprinter

• Have lots of nerve cells

• Help us to stand upright

Multiple Choice

One type of muscle contraction results in a stabilizing force. This:

• Enables us to stand and sit upright

• Means it helps us to lift heavy things

• Makes the muscle very tense

Multiple Choice

What proportion of the body’s weight does the skeletal system make up?

• 30-40%

• 45-55%

• 65-75%

Multiple Choice

Without the muscular system, we wouldn’t be able to make most of the body heat that we require.

• True

• False

Open Ended

What's the difference between fast twitch and slow twitch muscle cells?

Open Ended

What benefits does the muscular system provide, other than just helping you to move?

​4.3 Review

• Examples of good safety advice: wear a helmet when riding a bike, watch for traffic, exercise with a buddy, drink water during and after exercise

• Always wear bright colors if you are exercising outside at night

• If possible, choose to exercise in the morning rather than midday when it's hot outside

• It's important to cover your hands and feet in cold weather because they are the furthest from your heart, they are often the last to receive blood flow, and they can suffer from tissue damage.

• If your muscle is sore, don't continue to work that muscle strenuously

• Muscles are most likely to be stiff the morning after a workout

​4.3 Review

• The longest you should ice an injured area at one time is 10-20 minutes

• RICE can be used to treat minor twists or sprains.

  • Rest

  • Ice

  • Compression

  • Elevation

Multiple Choice

What gives bones their strength?

• minerals

• osteoclasts

• ostebolasts

• cartilage

Multiple Choice

Which cells build/generate new bone tissue?

• Red blood cells

• Ostebolasts

• Osteclasts

Multiple Choice

How do osteoclasts break down the bone?

• Using stress

• Using enzymes and acids

• Using minerals

• Osteoclasts do not break down the bone

Multiple Choice

The reasons astronauts must constantly exercise in orbit is due to _____.

• Excess of nutrients

• Excess of osteoblasts

• Lack of nutrients

• Lack of skeletal strain in free fall

Multiple Choice

In order for bones to be strong enough to carry weight, for instance, they need to experience _____ during their growth process.

• Humidity

• Right temperature

• Real stress

• Nutrients