What Is the Cause of the Striated Appearance of Skeletal

question 19

Multiple Choice

What is the cause of the striated appearance of skeletal and cardiac muscle?

• A) the nuclei of the muscle cells
• B) the connections of neurons to muscle cells
• C) the arrangement of intercalated discs
• D) the repeating arrangement of the contractile proteins, actin and myosin
• E) the stacking of muscle cells

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Definitions:

Identical Twins

Twins who develop from a single fertilized egg that splits and forms two embryos, sharing 100% of their DNA.

Genetic Component

An element of a physical or behavioral trait that is influenced by genes inherited from one's parents.

Paranoid Schizophrenia

An outdated term for a type of schizophrenia that includes symptoms like delusions of persecution or grandiosity, reflecting a more specific manifestation of the disorder.

Catatonic Schizophrenia

A subtype of schizophrenia characterized by periods of immobility or stupor, bizarre postures, or excessive, purposeless motor activity.