True or False: Muscle can transform chemical energy (ATP) into directed mechanical energy.
What is True?
100
This type of muscle does not have striations.
What is Smooth Muscle?
100
This is the only type of muscle that is voluntary.
What is the Skeletal Muscle?
100
These are produced by alternating dark (A) and light (I) bands, which are composed of different proteins.
What are striations?
200
This term means: attachment to movable bone.
What is insertion?
200
This term means attachment to immoveable/ less movable bone.
What is origin?
200
These are the two main proteins of muscle contraction.
What are Actin and Myosin (filaments)?
200
Skeletal muscles are stimulated by these.
What are somatic motor neurons?
200
This is the activation of cross bridges between actin and myosin to generate force.
What is a muscle contraction?
300
This chemical causes muscles to contract, and this other chemical causes muscles to relax.
What are calcium and ATP?
300
This metabolic event causes rigor mortis.
What is : ATP is no longer synthesized and calcium levels cause muscles to contract?
300
These four things must occur for skeletal muscles to contract.
What are nerve stimulation, action potential/electrical current generation in sarcolemma, electrical current propagated along sarcolemma, stored calcium released into sarcoplasm?
300
True or False: A single motor neuron can innervate several hundred muscle fibers.
What is True?
300
True or False: One of the distinguishing features of myasthenia gravis is that it follows a steady and predictable course.
What is False?
400
These are the 4 main characteristics that all muscle tissues share.
What is Excitability, Contractility, Extensibility, and Elasticity?
400
These are the four main functions of muscle.
What are: Produce Movement, Maintain Posture, Stabilize Joints, and Generate Heat?
400
This disease is rare, 97% of sufferers are male, presents as deficiency of abdominal muscles. Symptoms include constipation, scoliosis, urinary problems.
What is Prune Belly/ Eagle-Barret syndrome?
400
True or False: One of the major consequences of Rhabdomyolysis is muscle hypertrophy due to inflammation.
What is False?
400
True or False: MG is caused by antibodies to the muscle protein myoglobin.
What is False? (Antibodies against acetylcholine receptor)
500
This disease in uncommon, genetically inherited; symptoms include muscle weakness, atrophy, poor/absent reflexes, and scoliosis. There is no cure.
What is Rod Body/ Nemaline Myopathy?
500
This disease is characterized by muscle aches, headache, fatigue, sleep disturbance, and has a co-morbidity with Rheumatic diseases. Diagnosed in older men and younger women, and is thought to possibly be estrogen linked.
What is fibromyalgia?
500
This disease is caused by crush injuries, venom, drugs, overexertion of muscles, severe dehydration, and is characterized by dark urine and muscle weakness.
What is Rhabdo/ Rhabdomylysis?
500
This disease is a virus that attacks and kills spinal cord motor neurons, is highly infectious (fecal to oral spreading), can now be cured by injectable vaccine.
What is Poliovirus?
500
This is an autoimmune disease. Symptoms include droopy eye, double vision, muscle weakness, fatigue, and the symptoms vary in course.