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Muscular System
Chapter 8 Muscular System
26
Anatomy
Undergraduate 1
02/09/2017

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Term
Fascia
Definition
Fibrous connective tissue that separates an individual skeletal muscle and holds it in place
Term
Tendon
Definition
fascia that projects beond the muscle to form a cord-like attachment to the bone
Term
Aponeuroses
Definition
Broad fibrous sheet that attach muscles to each other (abdomen and skull)
Term
Ligament
Definition
connective tissue that holds joints together
Term
Myosin
Definition
Thick filaments
Term
Actin
Definition
Thin filaments
Term
Myofibrils can what 2 kind of protein filaments
Definition
myosin and actin
Term
Motor neuron
Definition
neuron that transmits impulses from the central nervous system to an effector
Term
Neuromuscular junction
Definition
place where cells connect (WS)
synapse between a motor neuron and skeletal muscle fiber
Term
Neurotransmitters
Definition
cross the junction to stimulate the muscle fiber to contract
Term
Epicranius
Definition
2 parts
1. frontalis
2. occipitalis - raises the eyebrows
Term
Obicularis oculi
Definition
closes eye
Term
Orbicularis oris
Definition
closes mouth, puses lips
Term
Bussinator
Definition
compresses cheeks inward
Term
Masseter
Definition
closes jaw
Term
Trapezius muscle
Definition
In the back - Trianglar muscle in pectoral girdle
Term
myogram
Definition
A test that can record the contraction of a muscle responding to a stimulus
Term
Twitch
Definition
A single contraction that lasts a fraction of a second
Term
Anaerobic respiration
Definition
Energy releasing reactions that occur in the absence of molecular oxygen
Term
Synergist
Definition
muscles that assist in the movement
Term
Antagonists
Definition
muscles that oppose the movement and can cause the opposite movement
Term
Tetanic Contraction
Definition
continuous, forceful muscular contraction without relaxation
Term
ATP
Definition
Adenosine triphosphate
Term
Linea Alba
Definition
A band of tough connective tissue that extends from the xiphoid process of the sternum to the pubic symphysis. It is an attachment to some of the abdominal wall muscles
Term
Hamstring group
Definition
Biceps femoris
semitendinosus
semimembranosus
Term
Quadriceps group
Definition
Rectus femoris
Vastus lateralis
Vastus medialis
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