A&P: Test 2 Chapter 22 Review Questions

Which of the following occurs during the chloride shift

Chloride is exchanged for bicarbonate.

Which of the following anatomical structures is not part of the conducting zone

alveoli

A section of the lung that receives its own tertiary bronchus is called the

bronchopulmonary segment

A full complement of mature alveoli are present by

early childhood, around 8 years of age

Gas exchange that occurs at the level of the tissues is called

internal respiration

The faucets connects which of the following structures to the oropharynx

oral cavity

Which of the following prevents the alveoli from collapsing

residual volume

Which of the following are structural features of the trachea C-shaped cartilage smooth muscle fibers cilia all of the above

C-shaped cartilage

If a baby is born prematurely before type II cells produce sufficient pulmonary surfactant, which of the following might you suspect

Difficulty inflating the lungs

A low partial presssure of oxygen promotes hemoglobin binding to carbon dioxide. This is an example of the

Haldane effect

Gas moves from an area of ____ partial pressure to an area of____ partial pressure

High; low

A decrease in volume leads to an ____pressure

Increase in

The partial pressure of carbon dioxide is 45mm Hg in thr blood and 40mm Hg in the alveoli. What happens to the carbon dioxide

It diffuses into the alveoli

What happens to the fluid that remains in the lungs after birth

It is absorbed shortly after birth.

Gas flow decreases as____ increases

Resistance

The____ circulation picks up oxygen for cellular use and drops off carbon dioxide for removal from the body

Respiratory

Contraction of the external intercoastal muscles causes which of the following to occur

The ribs and sternum move upward

Which of the following factors play a role in the oxygen hemoglobin saturation/dissociation curve Temperature PH BPG All of the above

all of the above

When do fetal breathing movements begin

around week 20

When ventilation is not sufficient, which of the following occurs

capillaries constrict

The olfactory pits form from which of the following

ectoderm

Which of the following stimulates the production of erythrocytes

erythropoietin

Which of the following structures separates the lung into lobes

fissure

Oxyhemoglobin forms by a chemical reaction between

hemoglobin and oxygen

Increased ventilation that results in an increase in blood pH is called ________.

hyperventilation

What is the function of the conchae in the nasal cavity

increase surface area

Which of the following processes does atmospheric pressure play a role in

pulmonary ventilation

Exercise can trigger symptoms of AMS due to which of the following

small venous reserve of oxygen

Which of the following structures is not part of the bronchial tree

terminal bronchioles

What is the role of alveolar macrophages

to remove pathogens and debris

The pressure difference between the intra-alveolar and intrapleural pressures is called

transpulmonary pressure

The pleura that surrounds the lungs consist of two layers, the

visceral and parietal pleurae.