The respiratory system contains a total of five __________.

A. segmental bronchi
B. choanae
C. laryngeal cartilages
D. lobes
E. tracheal cartilages


D. lobes

Anatomy & Physiology

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An atom of oxygen has an atomic number of 8 and a mass number of 18. How many of each type of subatomic particle does it contain?

What will be an ideal response?

Anatomy & Physiology

To compensate for significant blood loss, the autonomic nervous system triggers

A.  vasoconstriction and an increase in heart rate. B.  vasoconstriction and a decrease in heart rate. C.  vasodilation and an increase in heart rate. D.  vasodilation and a decrease in heart rate.

Anatomy & Physiology

The optic canal is part of the sphenoid bone.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Which of the following can flex the vertebral column?

A) iliocostalis cervicis B) longissimus thoracis C) iliocostalis lumborum D) multifidus E) longus colli

Anatomy & Physiology