After food has been masticated in the oral cavity, where does it go next?

A. Colon

B. Liver

C. Pancreas

D. Pharynx

Answer Explanation:

Once the food has been masticated in the oral cavity (mouth), it is then swallowed and travels back into the pharynx down into the esophagus, which leads into the stomach.

Therefore, the Correct Answer is D.

Q #1: What body system is the skeletal system most closely associated with when hematopoiesis happens?

A. Urinary system

B. Digestive system

C. Muscular system

D. Cardiovascular system

Answer Explanation

The cardiovascular system is closely associated with hematopoiesis because it includes the heart and blood vessels, which are responsible for circulating blood throughout the body. Hematopoiesis, the process of blood cell formation, primarily occurs in the bone marrow, which is part of the skeletal system. However, the cardiovascular system plays a crucial role in transporting these blood cells to various parts of the body once they are produced in the bone marrow.

So, while the skeletal system provides the site for hematopoiesis, the cardiovascular system is responsible for distributing the blood cells, making it the most closely associated system in this context.
Q #2: What structure plays a role in air conduction?

A. Alveolus

B. Capillary

C. Lung

D. Trachea
Answer Explanation

The primary function of the respiratory system is to provide oxygen to and remove carbon dioxide from the body. In addition to gas exchange, the respiratory system enables a person to breathe. Breathing, or inhalation, is essential to life. It is the mechanism that provides oxygen to the body. Without oxygen, cells are unable to perform their functions necessary to keep the body alive. The primary muscle of inspiration is the diaphragm. Known as the chest cavity, this dome shaped structure flattens when it contracts. The rib cage moves outward, allowing outside air to be drawn into the lungs. During relaxation, the diaphragm returns to its dome shape and the rib cage moves back to its natural position. This causes the chest cavity to push air out of the lungs.

The respiratory system can be functionally divided into two parts:
- Air-conducting portion: Air is delivered to the lungs. This region consists of the upper and lower respiratory tract—specifically, the larynx, trachea, bronchi, and bronchioles.
- Gas exchange portion: Gas exchange takes place between the air and the blood. This portion includes the lungs, alveoli, and capillaries.
Q #3: A person is diagnosed as having acidosis, a condition in which the blood pH is below 7.45. What does the doctor most likely conclude?

A. Too much carbon dioxide is found in the blood.

B. Highly oxygenated blood circulates through the body

C. A blockage prevents blood from leaving the pulmonary artery

D. The nasal cavity has a difficult time clearing particles from the air.

Answer Explanation

Acidosis is when the body fluids contain too much acid, or low pH. The kidneys and lungs are unable to keep the body’s pH in balance. Acidosis is the result when there is too much loss of bicarbonate from the blood known as metabolic acidosis, or due to a buildup of carbon dioxide in the blood due to poor lung function, known as respiratory acidosis. It is the opposite of alkalosis, which is a condition in which there is too much base in the body fluids.

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After food has been masticated in the oral cavity, where does it go next?

More Questions on TEAS 7 Science

Q #1: What body system is the skeletal system most closely associated with when hematopoiesis happens?

Answer Explanation

Q #2: What structure plays a role in air conduction?

Answer Explanation

Q #3: A person is diagnosed as having acidosis, a condition in which the blood pH is below 7.45. What does the doctor most likely conclude?

Answer Explanation

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