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GNUR 155 Exam 2
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Exam of 3 pages for the course Anatomy Condensed Final Exam Review - GNUR 155 at Anatomy Condensed Final Exam Review - GNUR 155 (GNUR 155 Exam 2)
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GNUR 155 Exam 2Humans rely on the muscular system for - ANS--many physiological processes
-dynamic interactions with the environment
Skeletal muscles consist of - ANS-Elongated cells called fibers (muscle fibers), these
fibers contract along their longitudinal axis
3 types of muscle tissue and describe - ANS-1. Skeletal
-Pulls on skeletal bones
-Voluntary contraction
2. Cardiac
-Pushes blood through arteries and veins
-Rhythmic contraction
3. Smooth muscle
-Pushes fluids and solids (ex. digestive tracts)
-Involuntary contractions
Four basic properties of muscle tissues - ANS-1. Excitability: the ability to respond to
stimuli
2. Contractility: the ability to shorten and exert a pull or tension
3. Extensibility: the ability to contact over a range of resting lengths
4. Elasticity: the ability to rebound toward its original length
Functions of Skeletal Muscles - ANS--Produce skeletal movement (pull on tendons to
move the bones)
-Maintain posture and body position (stabilize the joints to aid in posture)
-Support soft tissue (support the weight of the visceral organs)
-Regulate entering and exiting of material (voluntary control over swallowing,
defecation, and urination... encircles orifices of the digestive and urinary tracts
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