Which Statement Accurately Describes a Condition of the Heart Chambers

question 100

Multiple Choice

Which statement accurately describes a condition of the heart chambers during the cardiac cycle?

• A) The right atrium and the right ventricle contract simultaneously.
• B) The left atrium contracts before the right atrium.
• C) All four chambers of the heart contract at the same time.
• D) All four chambers of the heart are in diastole at the same time.

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Definitions:

Oocytes

Immature eggs found in the ovaries of females that, upon maturation, can undergo ovulation and potentially fertilization.

Endometrium

The mucous membrane lining the interior of the uterus, which thickens during the menstrual cycle in preparation for possible implantation of an embryo.

Blastocyst

An early stage of embryonic development, a structure formed in the early development of mammals, consisting of a sphere of cells surrounding an inner fluid-filled cavity.

Morula

A early stage in embryonic development consisting of a solid ball of cells.