Bio 161 PSU Exam 4 QUESTIONS AND ANSWERS A+
GRADED
Excitability
ability to respond to stimuli
Contractability
ability to shorten
Conductivity
Ability to allow electricity to flow
Extensibility
ability to be stretched
skeletal muscle
A muscle that is attached to the bones of the skeleton and provides the force that
moves the bones. Striated and Voluntary
smooth muscle
involuntary muscle found in internal organs
Cardic muscle
heart muscle, involuntary
Striations
alternate dark and light bands found on skeletal and cardiac muscle
Multinucleate
many nuclei
Mononucleate
one nucleus
Fascicle
bundle of muscle fibers
Epimysium, perimysium, endomysium
3 layers of connective tissue
Myofibril
tightly packed filament bundles found within skeletal muscle fibers
Tendon
Attaches muscle to bone
Aponeurosis
A broad, flat tendon
Sarcolemma
muscle cell membrane
Sarcoplasm
cytoplasm of a muscle cell
sarcoplasmic reticulum
Organelle of the muscle fiber that stores calcium.
Myoglobin
stores oxygen in muscle cells
Transverse tubules
GRADED
Excitability
ability to respond to stimuli
Contractability
ability to shorten
Conductivity
Ability to allow electricity to flow
Extensibility
ability to be stretched
skeletal muscle
A muscle that is attached to the bones of the skeleton and provides the force that
moves the bones. Striated and Voluntary
smooth muscle
involuntary muscle found in internal organs
Cardic muscle
heart muscle, involuntary
Striations
alternate dark and light bands found on skeletal and cardiac muscle
Multinucleate
many nuclei
Mononucleate
one nucleus
Fascicle
bundle of muscle fibers
Epimysium, perimysium, endomysium
3 layers of connective tissue
Myofibril
tightly packed filament bundles found within skeletal muscle fibers
Tendon
Attaches muscle to bone
Aponeurosis
A broad, flat tendon
Sarcolemma
muscle cell membrane
Sarcoplasm
cytoplasm of a muscle cell
sarcoplasmic reticulum
Organelle of the muscle fiber that stores calcium.
Myoglobin
stores oxygen in muscle cells
Transverse tubules
