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Muscular System 2014
JEOPARDY!! 
Intro to the Muscular System
Skeletal Muscle Features
Muscle Performance
Muscle Types and Skeletal
Muscle Components
Potpourri
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10 Intro to the Muscular
System
Sphincters in the body fulfill what
function of the muscular system?
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Intro to the Muscular
System
Guarding entrances and exits
20 Intro to the Muscular
System
When contraction occurs, energy is
used and converted to heat. What
function of the muscular system is
this associated with?
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Intro to the Muscular System
*Maintain body temperature
(homeostasis)
30 Intro to the Muscular
System
The layer of connective tissue that
covers the entire muscle is…
30 Intro to the Muscular
System
*Epimysium
30 Community 1
40 Intro to the Muscular
System
The layer of connective tissue that
divides the muscle into bundles
called fascicles?
40 Intro to the Muscular System
*permisium
50 Intro to the Muscular
System
Layer of connective tissue that
covers each muscle fiber (cell)?
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*Endomysium
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Skeletal Muscle
Features
Bundles that make up skeletal
muscle are called?
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Skeletal Muscle
Features
*Fascicles
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Skeletal Muscle Features
What is the sarcolemma?
20 Skeletal Muscle Features
The muscle fiber plasma
membrane
30 Skeletal Muscle Features
Tubes that form from the
sarcolemma that allow for electrical
stimuli to reach deep into each fiber
are called?
30 Skeletal Muscle Features
*Transverse tubules (T tubules)
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Skeletal Muscle Features
A long, filamentous organelle found
within muscle cells that has a
banded appearance is called a
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*Myofibril
Skeletal Muscle
Features
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Skeletal Muscle
Features
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Skeletal Muscle Features
A. T tubules
C. Sarcoplasmic reticulum
E.Sarcolemma
F. Mitochondria
G. Thick filament
H. Thin filament
I. Myofilaments
J. Myofibril
© 2013 Pearson Education, Inc.
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Muscle
Performance
*What are the two keys to
muscle performance?
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Muscle
Performance
1. Types of fibers in muscle
2. Physical conditioning or training
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Muscle
Performance
*Majority of muscle fibers in
the body
*Large in diameter
*Large glycogen reserves
*Few mitochondria
*Rely on glycolysis
*Rapidly fatigued
.
These characteristics
describe…
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Muscle
Performance
Fast fibers
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Muscle
Performance
*About ½ the diameter of, and 3X slower than, fast fibers
*Fatigue resistant because:
-oxygen supply is greater due to more perfusion
-myoglobin stores oxygen in the fibers
-oxygen use is efficient due to large numbers of mitochondria
These characteristics describe…
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Slow fibers
Muscle
Performance
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Muscle
Performance
What would be an example of an
anaerobic physical conditioning?
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Muscle
Performance
*50 yard dash or swim
*weight lifting
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Muscle
Performance
What would be an example of
an aerobic physical
conditioning?
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Muscle
Performance
3, 1, 5, 4, 2
Jogging, long distance running or swimming
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Muscle Types and Skeletal
Muscle Components
Skeletal muscle fibers differ
from "typical cells" in that
these muscle fibers are?
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Muscle Types and Skeletal
Muscle Components
multinucleated
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Muscle Types and Skeletal
Muscle Components
*Nonstriated, involuntary
muscle
*Found in the walls of most
organs
*Have a single-nucleus
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*Smooth Muscle
Muscle Types and Skeletal
Muscle Components
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Muscle Types and Skeletal
Muscle Components
*Muscle that is striated and
branched
*Consists of intercalated
discs.
*Has one nucleus
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Cardiac muscle
Muscle Types and Skeletal
Muscle Components
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Figure 7-11a An Overview of the Major Skeletal Muscles.
Frontalis
Muscle Types
and Skeletal
Temporalis
Muscle Components
Masseter
Latissimus dorsi
External oblique
Rectus abdominis
Extensor carpi radialis
Gluteus
medius
Adductor longus
Gracilis
Sartorius
Vastus medialis
Fibularis
Gastrocnemius
Soles
Anterior view
© 2013 Pearson Education, Inc.
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1.Temporalis
2.Orbicularis oculi
3.Zygomaticus
4.Orbicular oris
5.Pectoralis major
6.Deltoid
7.Biceps brachii
8.Rectus abdominis
9.Transverse abdominis
10.Adductor group
11.Gracilis
12.Sartorius
13.Tibialis anterior
14.Frontalis
15.Masseter
16.Sternocleidomastoid
17.External oblique
18.Rectus femoris
19.Vastus lateralis
20.Vastus medialis
21.Fibularis longus
Muscle Types and Skeletal
Muscle Components
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Muscle Types and Skeletal
Muscle Components
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1.Gluteus maximus
2.Adductor muscle
3.Biceps femoris
4.Semitendinosus
5.Gastrocnemius
6.Trapezius
7.Deltoid
8.Triceps brachii
9.Latissimus dorsi
10.External oblique
11.Gluteus medius
12.Soleus
© 2013 Pearson Education, Inc.
Figure 6-8 The Skeleton.
Skull
Muscle Types and Skeletal
Muscle Components
10 Cells
My name is Bond, Ionic Bond;
Taken, not shared!
10 Population Growth
From: Mariano Cecowski
<MCecowski#NoSpam.sif.com.ar>
Q: if both a bear in Yosemite and one in
Alaska fall into the water
which one disolves faster?
A: The one in Alaska because it is
HIJKLMNO
10 Population Growth
Alimentary: What Sherlock Holmes said to Dr. Watson.
Urinate: What a nurse would say if a patient asked her what room
he's in.
Urine - The opposite of "You're out!"
Benign: What we want when we are eight.
Intestine - Currently taking an exam
CARDIOLOGY: advanced study of poker playing
TERMINAL ILLNESS: getting sick at the airport
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Potpourri
What is the other term for a muscle cell?
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Muscle fiber
Potpourri
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Population Growth
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Potpourri
The skeletal muscles store calcium
ions in the terminal cisternae of the
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Potpourri
*Sarcoplasmic Reticulum
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Potpourri
The two contractile proteins that make
up myofilaments are…
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*actin and myosin
Potpourri
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Population Growth
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The cytoplasm of the
muscle cell is called…
Potpourri
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*sarcoplasm
Potpourri
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Potpourri
The contractile unit of muscle is called a ?
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*sarcomere
Potpourri