ANATOMY AND PHYSIOLOGY CHAPTER 6 TEST: MUSCLE PHYSIOLOGY

ANATOMY AND PHYSIOLOGY CHAPTER 6 TEST:
MUSCLE PHYSIOLOGY
Endomysium
the thin connective tissue surrounding each muscle cell
Epimysium
connective tissue ensheathing the entire muscle
Perimysium
the connective tissue surrounding a fascicle
Fascicle
a bundle of nerve or muscle fibers bound together by connective tissue
Fascia
layers of fibrous tissue covering and separating muscles
Tendon
cord of dense fibrous tissue attaching a muscle to a bone
Myofibril
a long, filamentous organelle found within muscle cells that has a banded appearance
Myofilament
filaments composing the myofibrils. Of two types: actin and myosin
Myo
(prefix) refers to muscle
Sarco
(prefix) refers to flesh
Actin
a contractile protein of muscle
Myosin
one of the principal contractile proteins found in muscle
Muscle Fiber
muscle cells
Sarcolemma
specialized plasma membrane (cell membrane)
Sarcomere
the smallest contractile unit of muscle; extends from one Z disc to the next
Sarcoplasm
plasma membrane of the muscle cell
Sarcoplasmic Reticulum
specialized smooth endoplasmic reticulum
Neuromuscular Junction
the region where a motor neuron comes into close contact with a skeletal muscle cell
Synaptic Cleft
the fluid-filled space at a synapse between neurons
Synaptic Vesicle