WorksheetsA&P Chapter 9 Muscle Tissue Notes Quiz
Total questions: 23
Worksheet time: 24mins
The effect muscular dystrophy has on muscle tissue is...
most cases are in females
loss of fat and connective tissue decrease muscle size
muscle fibers degenerate and atrophy
it is not inherited for the most part
Which type of muscle cells regenerate the best?
None of them regenerate
cardiac
smooth
skeletal
An elaborate network of membranes in skeletal muscle cells that functions in calcium storage.
intermediate filament network
mitorchondria
myofibrillar network
sarcoplasmic reticulum
Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the _________ period during which the events of excitation-contraction coupling occur.
contraction
latent
relaxation
refractory
What is a sarcomere?
the wavy lines on the cell seen in the microscope
the nonfunctional unit of skeletal muscles
the area between two intercalated discs
the area between two Z lines
The striations of a skeletal muscle cell are produced, for the most part, by...
the arrangement of myofilaments
the T tubules
the sarcoplasmic reticulum
a difference in the thickness of the sarcolema
Which of the following are composed of myosin?
all myofilaments
thick filamentss
Z discs
thin filaments
What does aponeurosis refer to?
a sheetlike indirect attachment to a skeletal element
the bands of myofibrils
the tropomyosin-troponin complex
the rough endoplasmic reticulum
The contractile units of skeletal muscle are known as...
mitochondria
microtubules
T tubules
myofibrils
In an isotonic contraction, the muscle...
rapidly resynthesizes creatine phosphate and ATP
changes in length and moves the "load"
never converts pyruvate to lactate
does not change in length but increases tension
What is muscle tone?
a state of sustained partial contraction
the feeling of euphoria following exercise
the condition of athletes after intensive training
the ability of a muscle to efficiently cause skeletal movements
Which type of muscle tissue has large striated cells and are controlled voluntarily?
cardiac
skeletal
smooth
twitch
Which type of muscle tissue is found only in the heart, has small striated cells and is involuntary?
cardiac
skeletal
smooth
twitch
Which type of muscle tissue is found in the walls of hollow organs, are elongated, not striated, and are involuntary controlled?
cardiac
skeletal
smooth
twitch
In an isometric contraction...
there is muscle tension but no lengthening or shortening of the muscle
rapidly resynthesizes creatine phosphate and ATP
never converts pyruvate to lactate
there is movement at the joint and shortening of the muscles
If a muscle runs out of oxygen, it will function anaerobically through
photosynthesis
the Kreb's cycle
glycolysis
the electron chain transport
True or False: As the number of muscle fibers increases, the force of the contraction decreases.
True
False
The chemical involved in muscle contraction is...
Adenosine Phosphate
Adenosine Diphosphate
Acetylcholine
Acetone
The connective tissue sheath which surrounds each muscle fiber is...
Epimysium
Perimysium
Endomysium
Endosymbiosis
The connective tissue sheath which surrounds each group of muscle fibers is...
Endomysium
Perimysium
Epimysium
Endosymbiosis
The connective tissue sheath surrounding the whole muscle is...
Endomysium
Perimysium
Epimysium
Endosymbiosis
What is a bundle of skeletal muscle fibers surrounded by perimysium?
Fascism
Fascicle
Facet
Faucet
What is surrounded by a plasma membrane called the sarcolemma, which contains sarcoplasm, the cytoplasm of muscle cells?
Endomysium
muscle fiber
fascicle
Perimysium
