Anatomy Final

Anatomy Final Anatomy Final Exam Qu
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Athletes usually experience muscular fatigue less quickly that nonathletes because they
 
produce less lactic aci
The role of ATP in muscle contraction is to supply energy for
 
myofilament movement
smooth muscle is found in the wall of
 
the stomach and intestine
In a recording of a muscle twitch the delay between the time a stimulus is applied and the time the muscle responds is called the
 
latent period
Tendons and ligament are composed primarily of
 
dense connective tissue
White muscles have an increased capacity to carry on aerobic respiration
 
false
The maintenance of body temperature is realted to the action of skeletal muscles because
 
the more active they are the more heat is released
endomysium separates individual muscle fibers
 
true
The latent period is the time when the muscle is relaxed
 
false
A tendon is characterized by being_____, whereas an aponeurosis is characterized by being_____
 
cordlike and connects muscles to bones; a broad, fibrous sheet of connective tissue that connects muscles to muscles
Which of the following is not true when comparing red and white muscle types
 
red muscles have fewer fitochondria then white
Which of the following major events in mucle contraction are stated properly
 
Actin filaments slide inward along myosin filametns
Motor unit recruitment refers to the fact that some otor neurons can recruti new skeletal muscle fibers with which they connect
 
false
Neurotransmitters are stored in vesicles within
 
motor neuron endings
A skeletal muscle fiber conains many nuclei
 
true
The type of muscle found in blood vessels is
 
smooth
Muscle fatigue is most likely due to an accumulation of lactic acid
 
true
The very brief moment following contraction when a muscle remains unresponsive to additional stimulation is called the
 
refractory period
The outermost laer of connective tissue surrounding a skeletal muscle is called the
 
epimysium
When a muscle undergoes atrophy in response to disuse
 
all of the above
The amount of oxygen needed to support the conversion of lactic acid to glycogen is called the
 
oxygen debt
Cardiac muscle is found in teh wall of the
 
none fo the above
The muscle tissue that can be consciously controlled is
 
skeletal
The striated appearance of skeletal muscle results from the
 
sarcomere arrangment
Liver cells convert lactic acid to ATP
 
false
ATP is related to creatine phosphate by
 
creatine phosphate supplying energy to regenerate ATP from ADP and phosphate
A motor unit is defined as
 
a motor neuron and the muscle fibers connected to it
If a muscle contracts and its fibers shorten the ontractionis isometric
 
false
Creatine phosphate serves to
 
supply energy for the synthesis of ATP
During muscle ontraction calcium ions combine with tropomysoin and this exposes active sites for cross-- bridge formation
 
false
A muscle cramp is most likely dur to a lack of
 
ATP
A neuromuscular junction can be described as
 
all of the above
Activities such as swimming and running ar most liely to stimulate development of
 
slow, red muscle fibers
Myofibrils are composed primarily of
 
acitn and myosin
Compared to skeletal muscle smooth muscle
 
contacts more slowly and relaxes more slowly
muscle contracts but does not change length
 
isometric
attachment moves
 
isotonic
performing curls
 
isotonic
doing a headstand
 
isometric
standing still
 
isometric
anaerobic respiration
 
fast twitch fibers
most myoglobin
 
slow twitch fibers
resistant to fatigue
 
slow twitch fibers
tons of mitochondria
 
slow twitch fibers
extenisve SR
 
fast twitch fibers
rich blood supply
 
slow twitch fiibers
lactic acid build up occurs
 
fast twitch fibers
white fibers
 
fast twitch fibers
long distance runners
 
slow twitch fibers
rapid contractions
 
fast twitch fibers
citric acid cycle and electron transport chain
 
aerobic
occurs in the cytoplasm
 
anaerobic
makes carbon dioxide water and 34 ATP
 
aerobic
oxygen required
 
aerobic
glycolysis
 
anaerobic
amkes pyruvic acid
 
anaerobic
forms 2 ATP
 
anaerobic
fast twitch fibers
 
anaerobic
34 ATP
 
aerobic
by product is lactic acid
 
anaerobic
The meninges consist of
 
all of the above
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