Skeletal, Muscular, Respiratory And Neuromuscular Responses To Exercise

Question 1

What’s the job of osteoclasts and osteoblasts?

Answer 1

Osteoblasts- build bone

Osteoclasts- clear away old bone

Question 2

What’s synovial fluid?

Answer 2

Keeps joints viscous and helps smooth moment

Question 3

What is cardiac output?

Answer 3

Amount of blood pumped per minute

Question 4

What’s vasodilation and vasoconstriction?

Answer 4

Vasoconstriction- closing of blood vessels

Vasodilation- blood vessels open

Question 5

What are micro tears?

Answer 5

Small tears caused during exercise, increases strength and size of muscles

Question 6

Why do we get hot during exercise?

Answer 6

More intense exercise means more heat produced and more blood is pumped to working muscles

Question 7

What is tidal volume?

Answer 7

Air breathed in and out in one breath

Question 8

What is minute ventilation?

Answer 8

Tidal volume x breathing rate

Question 9

What does the oxygen dissociation curve measure?

Answer 9

The partial pressure and oxygen saturation

Question 10

What is stroke volume?

Answer 10

Amount of blood pumped by left ventricle per beat

Question 11

What is cardiac output?

Answer 11

Amount of blood pumped per minute

Question 12

What controls the heart rate?

Answer 12

Sinoarterial node

Question 13

What is starlings law?

Answer 13

When stroke volume increases due to more blood filling the heart

Question 14

What is a-vo2 diff?

Answer 14

The difference between arterial and venous blood, when exercising more o2 is needed from arterial blood

Question 15

What’s isometric, Isokinetic and isotonic contraction?

Answer 15

Isometric- muscle tenses but no change
Isokinetic- muscle contracts to its maximum
Isotonic- muscle shortens

Question 16

What’s sensory and motor neurone?

Answer 16

Sensory- carry signals from skin to the brain

Motor- carry’s signals from nervous system to muscles

Question 17

What’s a muscle spindle?

Answer 17

Proprietor that contracts muscles to prevent over-stretching

Question 18

What’s a golgi tendon?

Answer 18

Work with muscle spindle to make smooth movements, also send signals to stop muscle stretch

Question 19

What’s a chemoreceptors, thermoreceptor and baroreceptor?

Answer 19

Chemoreceptors- detect changes in ph
Thermoreceptor-detect changes In body temp
Baroreceptor- detect changes in blood pressure