Choose the correct option for each part and explain why it is the correct option

Question

Choose the correct option for each part and explain why it is the correct option:

Part 1: Stimulated muscle force assessment is a useful means to determine all, EXCEPT for:

a. The diagnosis of various neuromuscular diseases.

b. Monitoring a given patient changes in muscle force status.

c. Noting the level of pain induced by muscle contractions.

d. Evaluating the relative treatment efficacy.

e. Studying muscle force in a variety of animal models.

Part 2: Which is NOT true concerning the Conduction System within the human heart?

a. It is also known as a specialized electrogenic system: i.e., generating rhythmical impulses to cause rhythmical contractions of the heart.

b. Conduction of these impulses rapidly throughout the heart in a coordinated fashion.

c. When the system is functioning normally, the atria contract about one sixth of a second ahead of the ventricles, which allows for filling.

d. If the sinoatrial node, which provides the primary rhythm of the heart, fails in a patient, they will likely die within seconds.

e. Action potentials of cells from different regions of the heart are not identical but have varying characteristics that are important for the overall process of cardiac excitation.

Part 3: Duchenne muscular dystrophy

a. is a fatal disease of muscle deterioration.

b. is due to mutations in the dystrophin gene.

c. is a X-linked disease.

d. involves both skeletal and cardiac muscle.

e. all of the above

Explanation / Answer

Part-1: option c. nothing the level of pain induced by muscle contraction.

Part-2: option d.

If SA node fails, other pacemakers start beating

Part-3: option c

is a X linked disease

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