Exam 22: The Respiratory System

The blood transports more CO₂ in the form of ___________ than in any other form.

The vagus and glossopharyngeal nerves carry afferent signals from peripheral chemoreceptors to a chemosensitive area in the ___________.

What is the least common but most dangerous form of lung cancer?

Normally,the systemic arterial blood has a PO₂ of ___________ mm Hg,a PCO₂ of ___________ mm Hg,and a pH of ___________.

The heart indents into the __________ of the left lung.

The nose is divided into right and left halves called the __________.

Metabolically active tissues have which of the following sets of conditions that shift the oxyhemoglobin dissociation curve to the right?

Deep,rapid breathing often seen in terminal diabetes mellitus is known as what?

Each hemoglobin molecule can transport up to __________ oxygen molecules.

Output from higher brain centers can bypass both the DRG and VRG and go directly to __________,which controls the accessory muscles of respiration.

Breathing is controlled solely by the medulla oblongata and pons.

Emotional states are integrated by the __________,which generates an output that creates such respiratory variations as laughing and crying.

Air consists of about 78.6% nitrogen,20.9% oxygen,0.04% carbon dioxide,and 0.5% water.At sea level, (760 mmHg)what is the PCO₂?

What is the basic distinction between an alveolar duct and an alveolar atrium?

Scuba divers breathe a nitrogen-oxygen mixture rather than pure compressed oxygen in order to avoid what condition?

During exercise,which of the following directly increases respiratory rate?

How is alveolar air different than inspired air?

The serratus anterior is active in eupnea.

Nitrogen bubbles can form in the blood and other tissues when a scuba diver ascends too rapidly,producing a syndrome called _________.

Among its other purposes,how is the Valsalva maneuver used?