When Comparing Cardiac Muscle Cells and Skeletal Muscle Cells

question 56

Multiple Choice

When comparing cardiac muscle cells and skeletal muscle cells,

• A) the rate of action potential propagation is faster in cardiac muscle.
• B) both possess intercalated discs.
• C) only skeletal muscle has a plateau phase in its contraction cycle.
• D) action potentials are conducted from cell to cell only in cardiac muscle.
• E) both are voluntary.

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Definitions:

Preimplantation Diagnosis

The technique used to detect genetic or chromosomal disorders in embryos created through in vitro fertilization before pregnancy is established.

Genetic Abnormalities

Deviations from the normal genetic sequence, which can lead to diseases, disorders, or variations in physical or mental attributes.

In Vitro Fertilization

A medical procedure where an egg is fertilized by sperm outside the body, in a laboratory.

Mental Retardation

An outdated and now considered offensive term for intellectual disability, characterized by significant limitations in intellectual functioning and adaptive behavior.