In This Diagram of the Heart,which of the Following Choices

question 82

Multiple Choice

In this diagram of the heart,which of the following choices correctly identifies A and B?

• A) A is the AV node; B is the cardiac pacemaker.
• B) A is the SA node; B is the septum.
• C) A is the AV node; B is the SA node.
• D) A is the SA node; B is the AV node.
• E) A is the septum; B is the cardiac pacemaker.

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Definitions:

Haploid Stage

A phase in the life cycle of an organism where its cells contain only one set of chromosomes, typical of gametes.

Gamete

A mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.

Spermatogenesis

The process by which male spermatozoa are produced, involving meiosis and subsequent maturation.

Oogenesis

Production of eggs in females by the process of meiosis and maturation.