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57 terms

BIOL 210 Lecture Exam 3- Anatomy of skeletal muscle

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A-bands
M-line
T-tubules
actin
troponin
tropomyosin
A-band
I-band
I-band
M-line
Mitochondria
Myofibrils
Sarcolemma
Transverse Tubule
Z disc/line
Z disc/line
Sarcoplasmic reticulum
Blood Vessel
Endomysium
Epimysium
Fasicle
Fasicle
Muscle Fiber
Perimysium
Tendon
Smooth
What type of muscle cell is pictured?
Skeletal
What type of muscle cell is pictured?
Cardiac
What type of muscle cell is pictured?
Epimysium
What part does the arrow indicate?
Tendon
What part does the arrow indicate?
Perimysium
What part does the arrow indicate?
Fascicle
What part does the bracket indicate?
Epimysium
What type of connective tissue surrounds the skeletal muscle?
Perimysium
What type of connective tissue surrounds the fascicle or group of muscle cells?
Fascicle
What term is used to refer to a bundle of skeletal muscle cells?
Endomysium
What connective tissue separates and electrically insulates muscle cells from one another?
Sarcolemma
T-tubule
Nucleus
Sarcoplasmic reticulum
Myofibril
Mitochondria
Sites of ATP synthesis
Sarcolemma
Plasma membrane of the muscle cell
Fibers
Skeletal muscle cells
Sarcoplasmic reticulum
Interconnecting tubules of endoplasmic reticulum that surround each myofibril
T tubules
tunnels that form a passageway through the muscle fiber
Myofibril
long thin collections/fibers of protein inside a muscle cell
Actin
Protein that makes up most of the thin filaments
Myosin
Protein that makes up most of the thick filaments
I band
Letter A:
A band
Letter B:
Z line
Letter C:
Sarcomere
Letter D:
Sarcomere
Repeating units within a myofilament, bundles of which make up a myofibril.
A band
The dark areas of a myofibril that corresponds to the areas where thick filaments are present
I band
The light areas of a myofibril that contain only thin filaments
Z line
A protein disk within the I band that anchors the thin filaments and connects adjacent myofibrils