Select from the statements below the correct one. Points are lost when you fail to select a correct response. Points are also deducted when you select a wrong option. Each correct statement rewards you with two points.

The intercostal nerves from the respiratory center stimulate inhalation.
The vagus nerve carries impulses from the stretch receptors to stimulate inhalation/inspiration.
The alveoli are surrounded by capillaries which also facilitate the process of gas exchange.
The intercostal nerves inhibit inspiration or inhalation process.
The vagus nerves inhibits inhalation is connected to the accelerator center - which increases the heart rate.
The diaphragm moves upwards during the inhalation process.
The majority of the carbon dioxide is removed from the body through the exhalation process.
During exhalation the volume of the thoracic (chest) volume increases.
During exhalation the pressure inside the lungs decreases.
The phrenic nerve sends impulses to stimulate contraction of the diaphragm.
During exhalation the pressure in the lungs increases.
Most of the carbon dioxide in the blood is carried as a bicarbonate ( 85%)
Hemoglobin is found in the red blood cells.
Hemoglobin is a protein in charge of transporting oxygen in the red blood cells.
Diffusion is the movement of substances or particles from an area of high concentration to an area of low concentration.
The alveolar membranes are very thin and are ideal for gas exchange.
The alveoli increase the surface area of the lungs - and are very thin - which make them idea for gas exchange.
deoxygenated blood arrive at the lungs through the pulmonary artery.
Pulmonary arteries will become smaller and will be called arteriole.
An arteriole becomes even smaller and is now called a capillary.
When the pulmonary arteriole becomes capillaries there is a higher concentration of carbon dioxide in them. Carbon dioxide will move by diffusion to the alveoli.
The alveoli contains a higher concentration of oxygen as a result of the inhaled air. Oxygen will diffuse into the red blood cells.
The concentration of carbon dioxide is higher in the pulmonary capillaries than in the alveoli.
Gases will always move through diffusion - that is - from an area where it is in high concentration to an area where there is low concentration.
The vagus nerve works in connection with the inhibitory center of the heart.
Hemoglobin and myoglobin work together to make sure that all cells of the body receive enough oxygen.
The lung capillaries surround the alveoli very closely, allowing for diffusion of gases back and forth.
The shape of the alveoli make them ideal for gas exchange.
Hemoglobin is composed up of 4 different chains - two beta and two alpha chains.
The capillaries are the thinnest blood vessels and surround the alveoli in the lungs. This is ideal for gas exchange.
The Bainbridge reflex and the intercostal nerve along with the phrenic nerve work together to decrease the concentration of carbon dioxide
During inhalation the pressure inside the lungs decrease.
During exhalation the pressure inside the lungs increase.
The thoracic ( chest) volume decreases in exhalation. This causes the pressure to increase.
Hemoglobin can also combine chemically with carbon dioxide.
The system that controls the heart rhythm works in connection with the respiratory control center
The red blood cells containing oxygen in its hemoglobin will be transported to the whole body to allow for cellular respiration to take place.
The SAN is the natural pacemaker of the heart
The AVN is located in the Superior Vena Cava
The AVN is responsible for starting the atrial contractions.
The QRS complex represents atrial contractions.