Wednesday Feb. 8

1
Wednesday Feb. 8

• Pick up Green Sheet. Work on it right away
• Need on desk Paper for FESS or put in back of
  biology notebook. You will be keeping them this
  semester until you turn them in day of final
  exam.
• What you need for FESS? Name, date, name of
  test, and do all questions except 48-50
• Pick up Circulation/Respiration Packet
• Homework
• Will be explained later

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Goals for Feb. 8

1. FESS reproduction/development test
2. Introduction to circulation/respiration unit
3. What is pulse? What is the best way to take
   pulse?

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Reproduction/Development Test Results

• Average for 4th and 8th period 41/50
• Most missed questions 11, 20, 24, 27, 28, 31,
  37, 40, 45, 47 (missed by 14 or more people)
• Teams that had 85.0 or higher
• 4th period Annelise, Michelle, Loren.
• Kaitlin, Scott, Allison?
• 8th period Jessica, Dan, Corinne
• christine, kevin

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11 Structure adds sugars and fluid to sperm

• E Seminal Vesicle

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20 Location of ectopic pregnancy

• A Oviduct (fallopian tube).
• Zygote implants in the oviduct instead of uterus.

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24 Hormone that initiates the production of
sex hormones at start of puberty?

• A Lutenizing hormone (LH)

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(No Transcript)
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27 Time between fertilization and implantation?

• D 1 week

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28 Which implants into the endometrium?

• B Blastocyst

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31 When is the fetal heartbeat first detected?

• A During the first 3 months

11
37 Why cant fetus red blood cells mix with
mothers red blood cells?

• B blood cells are too large to diffuse through
  the placenta

12
45 Which order is correct?

• D
• --Follicle develops
• --Uterine lining thickens
• -Egg moves into oviduct
• --Tissues of uterine lining pass out of body

13
47 When is woman most likely to conceive
(bedcome pregnant)?

• C Luteal stage

14

• Lets create a heart for our class.
• Each group should answer the questions on the
  back of piece received
• On the other side, write down what you know about
  the heart and what you would like to learn about

15

• Squeeze the tennis ball. You are using about the
  same amount of force your heart uses to pump
  blood throughout the body

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Can this be your pulse?
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Pulse Heart Rate

• Wave of blood through arteries/veins created as
  heart contracts (beats).
• Pulse is surge of blood going through your
  artery, just like at the wave pool the surge of
  water that creates the wave
• Why are arteries deep in the body?
• Measured on neck (carotid) or on wrist (radial)
  at arteries
• Also on back of knee, head, thigh, and upper arm
• Anyone CPR certified? Where do you take pulse on
  an adult? An infant?
• Use your index and middle finger, NOT your thumb

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Different ways to measure pulse

• Count pulse for one minute
• Couint pulse for 30 seconds then multiply by 2
• Count pulse for 15 seconds then multiply by 4
• What unit should you use for heart rate? BPM
  (beats per minute)

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Factors affecting heart rate

• Average heart rate is 70 beats per minute
• Can be changed by
• -- posture
• -- fitness level
• -- age
• -- diet
• -- emotions (stress)

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The heart is a muscle. It gets stronger the
more you use it

• Not your average guy
• Not your average heart
• Not your average heart rate

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(No Transcript)
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Is there something in Lance Armstrongs genetic
makeup that makes him superhuman?

• He has been tested at the Human Performance
  Laboratory at the University of Texas t/o his
  entire 13 year career
• Findings about Armstrong
• His heart rate is 32-34 BPM
• His heart is 30 larger than average
• He has a max heart rate at 201 bpm, which means
  he can pump a large amount of blood and oxygen to
  his legs

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What else about Armstrong?

1. He has a high VO2 max (how much oxygen his lungs
   can take in) of 83.8 mL/kg/min wherease the
   average person is 40-50
2. His body produces less lactic acid than others,
   so he likely feels less physical pain
3. Most racers have 12 uL/Kg to 20 uL/Kg, but
   Armstrong never goes about 6 uL/Kg

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Whats the big deal about Lances heart?It
shows us that the heart is a muscle. The more it
is used, the stronger and more effective it
becomes
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Imagine you were at the store and bought pop.
You are only strong enough to carry one can at a
time. (this is how efficient an average heart is)
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In comparison, Lance Armstrong could carry 24 at
the same time. His heart is stronger and can do
more work quickly.
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Tonights Homework

1. Read/highlight Pulse handout
2. In space provided on handout, write down the
   steps you will use in class to find your heart
   rate
3. Think of the steps as directions you would leave
   someone if you wanted them to copy exactly the
   way you performed it. Why would that kind of
   accuracy be important in science?
4. Read packet pg. 7 and come up with 3 possible
   experimental variables