Study Guide & Key Concepts”
Proprioception - ---✔✔✔ANSWER----The body's ability to to sense the
relative position of adjacent parts of the body
Ex: when walking our feet give us proprioception about the type of surface we are
on.
Mechanoreceptors - ---✔✔✔ANSWER----specialized structures that
recognize pressure in tissue and transmit signals to sensory nerves.
Muscle Spindles - ---✔✔✔ANSWER----sensory receptors in the muscles
that are parallel to the muscle fibers and are sensitive to change in muscle length.
Spindles stretch with muscle and sends information to CNS.
helps to prevent muscles from stretching too far or too fast
,Golgi Tendon Organs - ---✔✔✔ANSWER----sensory receptors that are
located at the point where the skeletal muscle fibers insert into the tendon.
Sensitive to change in tension at the rate of change
causes the muscle to relax
Epimysium - ---✔✔✔ANSWER----connective tissue UNDER fascia that
acts as an outer layer of the whole muscle
Perimysium - ---✔✔✔ANSWER----connective tissue acts as an outer layer
of fascicles
Endomysium - ---✔✔✔ANSWER----between the individual muscle fibers
Type 1 Muscle Fiber - ---✔✔✔ANSWER----"slow-twitch", smaller in size,
lessforce produced, long-term contractions (stabilization)
Type 2 Muscle Fiber - ---✔✔✔ANSWER----fast twitch, larger, quick to
fatigue, force and power exercises
Agonist - ---✔✔✔ANSWER----PRIME MOVER, main muscles
ex: chest press-> pectoralis major
, Synergist - ---✔✔✔ANSWER----ASSIST PRIME MOVER,
ex: chest press -> ant deltoid, triceps
Stabilizer - ---✔✔✔ANSWER----stabilizes while prime mover and assist
work.
chest press -> rotator cuff
Antagonist - ---✔✔✔ANSWER----Oppose Prime mover,
chest press -> posterior delt
Right Atrium - ---✔✔✔ANSWER----gather DEOXGENATED blood
returning to the heart from ENTIRE BODY
Left Atrium - ---✔✔✔ANSWER----gathers OXYGENATED blood coming
from the LUNGS
Right Ventricle - ---✔✔✔ANSWER----thin walls pumps under low
pressure. Pumps to lungs
Left Ventricle - ---✔✔✔ANSWER----thick walls, pumps under high
pressure to rest of body