Shared Flashcard Set

Details

Screening and Testing
Online Drill
20
Fitness
Professional
02/29/2012

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Cards

Term
What are the 2 divisions of the Nervous System?
Definition
Central and Peripheral Nervous System
Term
Involuntary motor response to a stimulus, knee jerk, and withdrawl are all termed this.
Definition
Reflex
Term
Muscle Spindles and Golgi Tendon Organs are both classified as this.
Definition
Mechanoreceptors
Term
Actin, Myosin, Troponin, and Tropomyosin are all part of what?
Definition
Muscle Tissue
Term
What is the thin filament of muscle tissue?
Definition
Actin
Term
What is the thick filament of muscle tissue?
Definition
Myosin
Term
What muscle filament is the crossbridge (head) attached to?
Definition
Myosin
Term
During the sliding filament theory, what substance causes conformational change in shape of troponin/tropomyosin?
Definition
Calcium
Term
Which branch of the nervous system controls the gradation of muscular force?
Definition
Central Nervous System
Term
Which principle states that increasingly forceful contrations are achieved by the recruitment of progressively larger motor units?
Definition
Size Principle
Term
Muscle force is modulated through which 2 mechanisms?
Definition
Motor Unit Recruitment and Rate Coding
Term
Concentric, Isometric, and Eccentric are all types of what?
Definition
Muscle Action
Term
This muscle action involves the production of force without movement at the joint.
Definition
Isometric
Term
This muscle action produces force and shortens the muscle.
Definition
Concentric
Term
This muscle action still produces force while the muscle lengthens.
Definition
Eccentric
Term
Definition of Hypertrophy
Definition
Increase of the cross-sectional area (size) of exisiting muscle fiber.
Term
Definition of Hyperplasia
Definition
An increase in the number of muscle fibers.
Term
Definition of Bilateral Deficit
Definition
Force measured with both limbs concurrently is typically less than the sum of the force developed by each limb independently.
Term
True or False: Muscle fibers can transform from Type I to Type II and vise versa.
Definition
False: Muscle fibers can only transform within their own specific fiber type. (ie- Type IIa to Type IIb, and vice versa)
Term
Early strength gains are mostly due to _______ adaptations.
Definition
Neural
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