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PYRAMID OF BIOMEDICAL KNOWLEDGE!!

  • Understand what happens in the human body during each stage of racing a mile.
  • Relate experiences to actions in the various body systems.
  • Create a timeline that displays how systems work together to power the body and to restore homeostasis after exercise.
  • We read Mary's story, in which she ran a race.
  • Then we investigated how the body systems worked together to allow her to cross the finish line.
  • Next we answered questions on the Student Resource Sheet
  • Then we analyzed how Mary's body was responding to exercise at key points by creating a timeline.
  • Last, we answered conclusion questions.
  • The peripheral nervous system is divided into two parts: the autonomic nervous system and the somatic nervous system.
  • Autonomic controls involuntary reactions while somatic controls voluntary actions.
  • The sympathetic division of the autonomic nervous is active in stressful situations and engages the fight-or-flight response.
  • Nervous system: releases hormones, constrict muscles, and increase heart rate & breathing.
  • Blood sugar levels are higher after consuming carbs and sugar.
  • Sprinting puts demands on the body: increased amount of power, strength, and energy needed.
  • Muscles feel burning sensation: muscles are depleted of all energy so they produce lactic acid and burn that instead.
  • Respiratory system's rate increases to provide muscles with more oxygen (needed to create more energy).
  • Heart rate increases.
  • Energy from muscle contraction is released as heat, increasing body temperature.
  • Hypothalamus is triggered because of high body temperature.
  • Sweat glands are stimulated; sweat is produced to cool off the body. Sweat depleates hydration and sodium levels.
  • Urinary doesn't absorb as much water and sodium from the blood to control the body's hydration levels.
  • Simple sugars are already burnt off and the body has already gotten through the first gap. Carbohydrates are being burned instead.
  • Dizziness occurs because of lack of energy, water, and sodium.
  • Heart rate is still high because body is catching up to the amount of energy expended.
  • Weight loss; from burning fat as an energy source. Also appropriately 3 pounds of water.
  • Soreness from lactic acid still present in muscles.
  • Hypothalamus tells pituitary gland to secrete ADH to restore hydration levels.

Project 4.4.1: The Body's

Response to Exercise

Lambert, Lathi, Makela, and Nix

OBJECTIVES:

PROCEDURE:

Content:

Halfway through the race:

At the start (Background knowledge):

At the finish:

10 minutes after the race:

1 Minute into the race:

Hyponatremia

  • Drinking too much water causes cramps, or hyponatremia.
  • -Because of low sodium concentration in the body from sweating. Replenishing water levels without replenishing sodium

Symptoms:

Nausea, muscle cramps, disorientation, slurred speech, and confusion.

At the most extreme an athlete may experience seizures, coma, or death.

Numero Tres

Numero Dos

Numero Cuatro

Numero Uno

Numero Cinco

Numero Seis

Which muscle energy system(s) is (are) used for each of the following activites ? Make sure to explain your reasoning.

List and describe at least three things a runner can do before a race to prepare the body for the demands it is about to endure.

Explain how the respiratory and the cardiovascular system work together to meet the demands of the working muscle .

Provide at least two examples of the opposite effects of the sympathetic nervous system and para sympathetic divisions of the nervous system.

phosphagen system, 10-15 seconds, power surges

When you set out to jog five miles, your body first uses ATP that is floating around in your system. Describe the systems that your body relies on for ATP after this point.

Our body sweats to stay cool during exercise. How does this seem to counteract the action of the urinary system?

aerobic system, unlimited time, prolonged athletic activities

-The 50 meter dash

-A game of basketball

-A single football play

-Weight lifting

-Running a marathon

glycogen- lactic acid system, 30-40 seconds, intermediate athletic activity

Sweat excretes waste through skin but the major part of this task is performed by the urinary system.

phosphagen system, 10-15 seconds, power surges

  • Warm up (don't jump right into activity): Gets blood flowing quickly through muscles
  • Stretch: prevents tearing or injury of muscle tissue
  • Drink water: Hydrates the body

Body uses fat to burn after ATP is burned. Then muscle tissue is burned after fat is used.

  • Para: decreases blood pressure/ increases heart rate
  • Sympathetic: increases blood pressure/ decreases heart rate

The respiratory system provides oxygen through lungs and the cardiovascular system carries oxygen to muscle cells. This oxygen is needed to produce ATP which provides energy to the muscles.

aerobic system, unlimited time, prolonged athletic activities

**Note: phosphagen system uses phosphates to recycle ADP back into ATP to provide fuel. QUICK ENERGY.

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