Prep At School (45/x/x) Referrals/reference 5 Copies 10
Objectives / agenda 5 Class record 5 Mastery / attendance 10 Binder
/ supplies 5 Flashback 5 At Home (30) Slide 2 SMART board Miss
Andrews Desk 6 Jamal 5 Shamena 4 Dorothy 3 Shantiera 2 Martell 1
Jimmy 12 Marcie 11 Deshandre 10 Stephanie 9 Tatiana 8 Christian 7
Lisa 18 Devon 17 Auziana 16 Patricia 15 Ashley 14 Erick 13 Osmar 24
Salma 23 Rasheed 22 Queenashe 21 Jorge 20 Fabian 19 Samuel 28
Briana 27 Kiara 26 Samantha 25 Oscar 32 Richard 31 Diquan 3029
Seats: period 1 Slide 3 SMART board Miss Andrews Desk 6 Abdi 5 Noel
4 Kiala 3 Kaila 2 Dominique 1 Melodie 12 Mary 11 Brittany 10
Nakerie 9 Maria 8 Daniel 7 Felix 18 Troy 17 Edwin 16 Noemi 15
Justine 14 Rosana 13 Minerva 24 Andre 23 Jakar 22 Tyrone 21 Luis 20
Juan 19 Vonnisha 28 Louis 27 Breanna 26 Melody 25 Renee 32313029
Seats: period 5 Slide 4 Catalyst 4 minutes ! 1. What happens when a
beetle gets turned onto its back? How does the structure of its
exoskeleton contribute to the problem? 2. List the names of at
least 3 muscles you use in gym class. 3. Which athlete is stronger,
A or B? Why do you think this? 4. Which athlete would have a better
marathon time? 5. Which athlete would be more likely to be able to
lift 700 lbs? A B Slide 5 Passport Tracker Education is our
passport to the future, for tomorrow belongs to the people who
prepare for it today. 4 minutes ! Slide 6 ET Shout Out! BIG goal =
80% 1 80 % Slide 7 80 % party! Slide 8 ET Shout Out! BIG goal = 80%
5 64 % Slide 9 Unit 5: Rock Your Body ! Flip Flop due YESTERDAY!
Slide 10 Objectives We are learning about the muskuloskeletal
system We will be successful when we can explain how the
musculoskeletal system works with other systems to support the body
& allow for movement broken ulnar bone Agenda Catalyst 8 Flash
back! 5 Muscle Intro 15 Link it! 5 Fiber Types 15 Announcements 2
Slide 11 Muscular System The muscular system is made up of all of
the muscles in a persons body. The main functions of the muscular
system are: 1. Provide movement 2. Maintain body temperature 3.
Maintain posture The muscular system connects to the skeletal
system via tendons (NOT ligaments!) Slide 12 FuNcTiOn 1: Movement
Muscles allow our skeletal system to move through contraction &
relaxation. Slide 13 Our muscles shiver to increase our body
temperature when we are cold. FuNcTiOn 2: Body Temperature Slide 14
FuNcTiOn 3: Posture Our muscles help us to stand tall. Slide 15
Types of Muscle There are 3 types of muscle fibers: skeletal muscle
cardiac muscle smooth muscle Skeletal muscles work in pairs one
muscle contracts while the other one relaxes to move bones of the
skeletal system Contract means to tighten or get shorter Relax
means to loosen or get longer 1 Biceps & triceps! Striated =
striped Slide 16 Cardiac Muscle Cardiac muscle is found in the
heart & helps pump blood We canNOT consciously control itthis
is called involuntary control opposite = voluntary control Quick
Check! Do skeletal muscles move via involuntary or voluntary
control? 2 Shorter than skeletal muscle cells Have branches that
join end to end Areas where branches join = gap junctions Gap
junctions coordinate contraction so when one cell contracts, others
quickly follow Slide 17 Smooth Muscle Smooth muscle is found in
digestive system & blood vessels It helps break down food and
changes the size of blood vessels to help us regulate body
temperature We canNOT consciously control it
http://my.hrw.com/hssc_2012/hmd_na_bio/nsmedia/videoclips/videoplayer.html?bio_ch33_s2_v02.flv
3 involuntary Whats another way? Slide 18 Linked Systems All of the
human body systems work together! Choose 1 other system that the
muscular system interacts with and explain in detail how they are
linked. Digestive system Circulatory system Skeletal system
Respiratory system 2 minutes ! Slide 19 How do genetics affect
athletics? Scientists want to know if race, gender, or ethnicity
play a role in the genetics that account for the success of an
athlete in a particular sport Health & exercise are very
lucrative industries! Slide 20 3 Types of Muscle Fibers Slow Twitch
Type I Fast Twitch Type IIa Type IIb On average, humans have about
50% slow twitch and 50% fast twitch fibers Our fiber type may
influence the sports where we are stronger Slide 21 Type I Slow
muscle contractions High resistance to fatigue it takes a long time
to get tired! Uses aerobic respiration Endurance performers have a
higher percentage of slow twitch fibers In the Olympics, marathon
runners have had as much as 80% of their muscle composition as slow
twitch fibers Slide 22 Type IIa Fast muscle contractions between
slow & really fast twitch fibers! Generates less force than
Type IIb Uses some anaerobic & some aerobic respiration Type
IIa fibers are utilized most during moderate exercise such as
swimming, mile races, & long durations of weight lifting Slide
23 Type IIb Fastest muscle contractions Produce the most force and
fatigue quickly it does not take long to get tired! Use anaerobic
respiration Sprinters, shot putters, and 1 repetition maximum
weight lifters have an abundance of these fibers Olympic sprinters
have as much as 80% fast twitch muscle composition Slide 24
Relative percentages of fast and slow twitch fibers in a range of
sporting activities Slide 25 While more research is being
conducted, at this time, scientists do not believe that you can
just change your fiber type from slow to fast twitch. However, it
is believed Type IIa fibers can become faster or slower depending
on your training schedule. Current research suggests you are born
with a specific amount of each fiber type and thats how youll stay.
How do genetics affect athletics? Slide 26 Turn it in 1.Catalyst
(big basket) 2.Musculoskeletal: Muscles #12 (binder) Wednesday,
February 19 th homework due YESTERDAY !
