After entering the right atrium, the furthest a red blood cell can travel is the ________.

A. superior vena cava
B. pulmonary trunk
C. left atrium
D. right ventricle
E. ascending aorta


Answer: A

Anatomy & Physiology

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Compared to skeletal muscle, cardiac muscle ________.

cells are larger than skeletal muscle cells lacks striations has more nuclei per cell has gap junctions that allow it to act as a functional syncytium

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A) male climacteric, or andropause B) menarche C) puberty D) female climacteric, or menopause

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Cells that help regulate the immune response are ________ cells

A) B B) plasma C) helper T D) cytotoxic T E) NK

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