Exam 2 Muscle Flashcards
What are the four functions of muscle.
Produce movement
Maintains posture
Stabilizes joints
Generates heat
Myo-, mys- and sacro refer to…
Muscle
What are the characteristics of muscle name four.
Excitability or irritability, contractility, extensibility, elasticity
Each muscle is surrounded by a…
Connective tissue fascia
The fascia may extend past the muscle to form….
A tendon
Sometimes the fascia forms broad sheets called _________ which are attached to the fascia of surrounding muscles.
Aponeuroses
Define tendinitis
Inflammation of tendon
Connective tissue around each muscle fiber
Endomysium
Connective tissue around fascicles
Perimysium
Connected tissue around whole muscle
Epimysium
The space occupied by a certain group of muscles blood vessels and nerves that are enclosed by fascia forms a compartment. Sometimes fluid will accumulate in the compartments and cause pressure to rise. This may decrease blood flow and compressed nerves. Can be very painful. Treatment slit fascia to relieve pressure.
Compartment syndrome
Plasma membrane of muscle fiber
Sacrolemma
Sacro - muscle/flesh
-lemma. Membrane
_______ are made of two kinds of protein filaments (myofilaments). Myosin, actin
Myofibrils
Myosin-thick A band
Actin-thin I band
The ends of actin filaments are attached to
Z lines
The area between the lines is called a
Sacromere
