Which of the following best describes the function of the lungs?

Which of the following best describes the function of the lungs?

The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood. A reduced lung function means that the ability of lungs to exchange gases is reduced.

What is the function of the lungs?

Lung Health & Diseases Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system’s main job is to move fresh air into your body while removing waste gases.

What is the role of lungs in respiration?

What Are the Lungs and Respiratory System? The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

Which statement best describes the function of the respiratory passageways in the lungs of a human?

Which statement best describes the function of the respiratory passageways of a human? They permit digestive end-products to make contact with body cells. They permit exchange between the external atmosphere and the circulatory system. They transport gaseous cellular wastes from body cells to the lungs for excretion.

Which is the pathway of oxygen from the lungs to tissues of the body?

Gas exchange

What is breathing regulated by?

Breathing occurs due to repeated contractions of a large muscle called the diaphragm. The rate of breathing is regulated by the brain stem. It monitors the level of carbon dioxide in the blood and triggers faster or slower breathing as needed to keep the level within a narrow range.

Which is a function of oxygen in the human body?

Why do we breathe? (We breathe because oxygen is needed to burn the fuel [sugars and fatty acids] in our cells to produce energy.) What happens in the process of respiration? (Oxygen is brought into the lungs via breathing, where it is transported by red blood cells to the entire body to be used to produce energy.

Which part of the human brain controls the breathing movements?

The brain stem, at the bottom of the brain, connects the cerebrum with the spinal cord. It includes the midbrain, the pons, and the medulla. It controls fundamental body functions such as breathing, eye movements, blood pressure, heartbeat, and swallowing.

What is the difference between the brain and the mind?

Mind is associated with the brain. The two terms are often used interchangeably. Brain is considered to be a physical thing, the mind is considered to be mental. The brain is composed of nerve cells and can be touched, whereas, the mind cannot be touched.

What part of the brain takes up the greatest volume?

The preponderance of the cerebral cortex (which, with its supporting structures, makes up approximately 80 percent of the brain’s total volume) is actually a recent development in the course of evolution.

What are the 3 major divisions of the brain?

The brain can be divided into the cerebrum, brainstem, and cerebellum:

• Cerebrum. The cerebrum (front of brain) is composed of the right and left hemispheres, which are joined by the corpus callosum.
• Brainstem. The brainstem (middle of brain) includes the midbrain, the pons, and the medulla.
• Cerebellum.

What are the major divisions of the human brain?

The brain is composed of 3 main structural divisions: the cerebrum, the brainstem, and the cerebellum (see the images below). At the base of the brain is the brainstem, which extends from the upper cervical spinal cord to the diencephalon of the cerebrum. The brainstem is divided into the medulla, pons, and midbrain.

What are the five divisions of the brain and their functions?

Terms in this set (5)

• Myencephalon. hindbrain. Otherwise known as the medulla that contains mostly tracts relaying information between the brain and the rest of the body.
• Metencephalon. Hind brain.
• Mesencephalon. Midbrain.
• Diencephalon. Forebrain.
• Telencephalon. Cerebral Cortex, Limbic System, basal ganglia.

What is the function of the little brain?

The cerebellum (which is Latin for “little brain”) is a major structure of the hindbrain that is located near the brainstem. This part of the brain is responsible for coordinating voluntary movements. It is also responsible for a number of functions including motor skills such as balance, coordination, and posture.