A)
The primary function of the _________________ is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
(1 point)
digestive system
cardiac system
respiratory system
endocrine system
The ___________ is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest
cavity decreases and the air is pushed out.
A) (1 point)
A)
Which of the following statements best describes how oxygen enters the lungs?
(1 point)
Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
Oxygen enters the lungs through the diaphragm, which branches into two tubes called the trachea.
Oxygen enters the lungs through bronchi, which branches into two tubes called the bronchioles.
Oxygen enters the lungs through the trachea, which branches into the alveoli.
A)
External respiration takes place in the ____________________.
(1 point)
bronchi
trachea
alveoli
diaphragm
Question 5
Question 6
Question 7
Question 8
Oxygen is carried by the ______________, which is part of the red blood cell.
A) (1 point)
A) The primary function of the respiratory system is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
The diaphragm is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.
The statement that best describes how oxygen enters the lungs is: Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
External respiration takes place in the alveoli.
Oxygen is carried by the hemoglobin, which is part of the red blood cell.
A) The primary function of the respiratory system is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
The diaphragm is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.
A) Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
External respiration takes place in the alveoli.
Oxygen is carried by the hemoglobin, which is part of the red blood cell.
A) The primary function of the respiratory system is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
To answer the first question, the correct option is the respiratory system.
The strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs is called the diaphragm.
To answer the second question, the correct option is "Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs."
External respiration takes place in the alveoli.
To answer the fourth question, the correct option is the alveoli.
Oxygen is carried by the hemoglobin, which is part of the red blood cell.