Muscular Tissue Flashcards
muscle tissue types
skeletal
cardiac (heart)
smooth
characteristics of skeletal muscle tissue
-striated
-elongated cells
-multinucleated cells
-voluntary
characteristics of cardiac (heart) muscle tissue
-striated
-branched cells
-1-3 central nuclei
-involuntary
characteristics of smooth muscle tissue
-nonstriated
-single central nucleus
-involuntary
are quiet complex and as well find out, they are a marvel of both biology and physics.
muscles
the ability to receive and respond to a stimulus
excitability
the ability to shorten forcibly when adequately stimulated. this is defining property of muscle tissue.
contractility
the ability to be stretched
extensibility
the ability to recoil and resume original length after being stretched
elasticity
are dominated by muscle tissue but also contain nervous, vascular and assorted connective tissue.
skeletal muscle organ
it is known as sarcolemma
Muscle fiber PM
muscle fiber cytoplasm is known as?
sarcoplasm
muscle fiber PH is known as?
sarcolemma
has invaginations that penetrate through the cell called transverse tubules or T tubules
sarcolemma
it has lot of mitochondria, lot of glycogen granules as well as myofibrils and sarcoplasmic reticuli.
sarcoplasm
are made the protein myosin
thick myofilaments
what are the 3 different types of protein of each thin filaments?
actin, tropomyosin, and troponin
each myofibril is made up 1000’s of repeating individual units known as?
sarcomeres
functions to hold the thick filaments to one another
M line
the sarcomere is flanked by two proteins structures known as?
Z discs
the portion of the sarcomere which contains the thick filaments known as
A band
4 steps in whole process of muscle contraction
excitation, excitation-contraction coupling, contraction, relaxation
the site of interaction between a neuron and any other cell is known as?
synapse
the synapse between a neuron and a muscle is known as?
neuromuscular junction
