Let's Break it Down
What is a strain?
an injury where a muscle or tendon is stretched or torn
Which part of a lever system corresponds to the joint in the human body?
Fulcrum
Describe the basic anatomical position.
Standing up, arms at side, palms facing forward
What is the first sign of dehydration?
Thirst
What energy system is dominant in a 100 meter sprint?
ATP - PC system
What does RICE stand for?
Rest, Ice, Compression, Elevation
Describe the 3 laws of motion.
1st - an object in motion stays in motion until acted on (law of inertia)
2nd - The acceleration of an object depends on the mass of the object and the amount of force applied.
3rd - For every action, there is an equal and opposite reaction.
What happens when ATP is depleted in muscle cells?
Muscle fatigue
Blood PH is mainly regulated by detecting changes in what????
Carbon dioxide in the blood
What are the 4 macro nutrients?
Protein
Carbs
Water
Fats (lipids)
What type of joint is the most commonly dislocated?
Ball and socket
Standing on your tiptoes is what type of lever in the body?
2nd class lever
Which plane of motion is primarily involved in a bicep curl exercise?
Sagittal
Provide an example of a negative feedback loop.
Provide an example of a positive feedback loop.
Temperature, blood sugar, etc....
childbirth and oxytocin
What is the main function of iron in the body?
Transport oxygen via hemoglobin
Define the following:
anterior
posterior
superior
inferior
distal
proximal
front
back
top
bottom
farther away from point of attachment
closer to point of attachment
A bicep curl using the elbow joint is what type of lever in the body?
3rd class lever
Provide an example of:
eccentric muscle contraction
concentric muscle contraction
A concentric muscle contraction occurs when a muscle shortens under tension, like lifting a weight during a bicep curl.
An eccentric contraction occurs when a muscle lengthens under tension, like lowering the weight slowly back down during the bicep curl.
What 2 hormones regulate blood glucose levels?
Insulin and glucagon
What electrolyte is most critical for muscle contraction?
Calcium
Stand up and correctly identify 25 bones in the body.
Mrs. Morrow will judge
A baseball accelerates faster when hit with a greater force. What law of motion is demonstrated?
Newton's 2nd law
Which muscle is considered the agonist during elbow flexion?
The agonist is the main muscle responsible for producing a movement.
In this case, the biceps brachii is the primary muscle that contracts to pull the forearm towards the upper arm, resulting in elbow flexion
Which hormone helps regulate water retention in the kidneys?
Antidiuretic hormone (ADH)
Name 2 thermoregulatory responses to cold conditions.
Shivering
vasoconstriction