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Chapter 8: The Muscular System
N/A
31
Anatomy
11th Grade
11/16/2011

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Term
An organ
Definition
How would you describe a muscle?
Term
Aponeroses
Definition
What are broad fibrous sheets of connective tissue around some muscles?
Term
Neuromuscular Junction
Definition
_________ is where a nerve cell meets a muscle?
Term
Motor Unit
Definition
What is the one motor end plate and all the muscle fibers it controls?
Term
Contraction
Definition
What is the one characteristic that only applies to muscles?
Term
ATPase
Definition
What is an enzyme that catalyzes the conversion of ATP to ADP?
Term
(a) motor neuron releases Ach
(b)Ach deffuses across gap at nm junction
(c)Muscle fiber membrane is stimulated
(d)Ca tt defuse into sacroplasm
(e) Bending sites on actin are exposed
(f)Mysosri crosses bridge, pull actri inward
(g)Contraction
Definition
What happens after Ach is released? (7)
Term
Ach
Definition
What neurotransmitter is released to start a contraction?
Term
Calcium
Definition
What is need for muscle contraction?
Term
Extending
Definition
What are you doing when you do a hitch hiker thumb?
Term
1. striated or not
2. contract
3. voluntary or involuntary
Definition
Name 3 characteristics of muscles
Term
ATP
Definition
What supplies the energy that comes for a contraction?
Term
Oxygen Debt
Definition
What is the amount of oxygen needed to convert built up lactic acid to glucose and to restore supplies of ATP and CP
Term
Lactic Acid build up and cannot contract
Definition
What is muscle fatigue?
Term
Sustained contractions
Definition
What is a mixture of inflammation and recruitment?
Term
Muscles shrink
Definition
What is muscle atrophy?
Term
Visceral smooth muscle, fibers stimulating each other
Definition
What causes peristalsis?
Term
Smooth muscle and cardiac muscle
Definition
What muscles have rhythmic characteristics?
Term
Insertion
Definition
What is the movable attached end of a muscle?
Term
Mandible
Definition
Where do the chewing muscles insert?
Term
Mastoid
Definition
What is the insertion of the sterno?
Term
Tenses abdominal wall and compresses abdominal contents
Definition
What is the function of the Rectus Abdominis?
Term
Femur
Definition
What muscles of the thigh is insertion?
Term
Sterno, Splenius, and Emisphinalis
Definition
What 3 muscles help flex, move head, and rotate?
Term
Teres Major and Deltoid
Definition
2 Muscles that extend arm??
Term
Tense wall and compress content
Definition
What is the main thing that muscles in the abdomin do?
Term
Gastro
Definition
What muscle tenses when you are on your tiptoe?
Term
Mitochondria
Definition
Skeletal Cells contain a lot of what?
Term
Extends leg at knee
Definition
What do your Quadriceps do?
Term
Gastro
Definition
What muscle is connected to the calcanel tendon by the Iss. Tendon?
Term
Humerus
Definition
Where is the origin of muscles that move hand?
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