The mammalian trachea and esophagus both connect to the
- A. large intestine.
- B. stomach.
- C. pharynx.
- D. rectum.
Introduction:
The human respiratory system consists of several parts starting from the nose to the lungs. All organs have different functions; for example, nostrils are involved in the inhalation and exhalation of air. The pharynx passes air to the lungs. In this way, all organs have different functions in the body.
Answer to Problem 1TYU
Correct answer:
The structure that is connected to the mammalian trachea and the esophagus is pharynx. Therefore, option (C) is correct.
Explanation of Solution
Reason for the correct statement:
The trachea is also known as the windpipe. It is a cartilaginous structure. The pharynx is located behind the nasal cavity and the mouth, and above the esophagus. It is divided into three sections, namely nasopharynx, oropharynx, and laryngopharynx. It is connected to the trachea and the esophagus.
Option (C) is given as “pharynx”.
“In mammals, both trachea and esophagus are connected to the pharynx. The pharynx is found in both vertebrates and the invertebrates, but its anatomy varies from one organism to another. Thus, it is the right answer.
Hence, option (C) is correct.
Reason for the incorrect statements:
Option (A) is given as “large intestine”.
The large intestine is not connected to the trachea and the esophagus. Therefore, it is a wrong answer.
Option (B) is given as “stomach”.
The function of the stomach is food digestion, and it is not connected to the esophagus and the trachea. Therefore, it is a wrong answer.
Option (D) is given as “rectum”.
It is the last part of the human digestive tract and the function of the rectum is to excrete waste from the body. It is not connected to the esophagus and the trachea. Therefore, it is a wrong answer.
Hence, options (A), (B) and (D) are incorrect.
The pharynx is connected to the trachea and the esophagus. In mammals, it is an important part of the respiratory system.
Want to see more full solutions like this?
Chapter 33 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Additional Science Textbook Solutions
Seeley's Anatomy & Physiology
Microbiology: An Introduction
Loose Leaf For Integrated Principles Of Zoology
Evolutionary Analysis (5th Edition)
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Becker's World of the Cell (9th Edition)
- When the oxygen capacity of the blood is reduced,a. the liver produces more bile.b. the kidneys release erythropoietin.c. the thymus produces more red blood cells.d. sickle-cell disease occurs.e. All of these are correct.arrow_forwardThe interior of the respiratory tract is lined with a. a serosa. b. mesothelium. d.endothelium c. a mucosa. . e. peritoneum.arrow_forwardAt which point in the mammalian circulatory system does the partial pressure of oxygen in the blood experience its greatest increase? A. in the arteries of the heart B. in the pulmonary veins C. in the pulmonary capillaries D. in the pulmonary arteries E. in the aortaarrow_forward
- Very young infants who suffer from sleep apnea may be more at risk for SIDS, or sudden infant death syndrome. Why might these infants have difficulty breathing? a. Many of these infants are obese and therefore their airways are obstructed. b. The brain stem is not yet fully mature. c. The tissue lining in the nasal passageway may be obstructing their airflow. d. No medical explanation has been determined.arrow_forwardWhat happens during swallowing?a. Pharyngeal muscles push the bolus down so that it enters the esophagus.b. The bolus passes from the mouth to the oropharynx, to the laryngopharynx, and to the esophagus.c. The larynx moves up, and the glottis closes off the epiglottis.d. The uvula directs the bolus downward.e. Four cranial nerves send messages for deglutition.arrow_forwardBy what means are the lungs are attached to the walls of the thorax ? a. Panetal pleural membrane b. Visceral pleural membrane c. Diaphragm d. Mesenteryarrow_forward
- This structure is the passage for food, air and water. a. Larynx. b. Nostrils. c. Trachea. d. Esophagus. e. Pharynx. Clear my choicearrow_forwardThe two openings in the nostrils at the base of the nose are known as A. Wings B. Arch of the wing C. Columna nasi D. Anterior naresarrow_forwardWhat is part of the airways? A. Hyoid bone B. Thyrohyoid C. Thyroid cartilage of the larynx D. Thyroid glandE. None of the choicesarrow_forward
- Given the following organ and cavity combinations:(1) heart and pericardial cavity(2) lungs and pleural cavity(3) stomach and peritoneal cavity(4) kidney and peritoneal cavityWhich of the organs is correctly paired with a space that surroundsthat organ?a. 1,2 b. 1,2,3 c. 1,2,4 d. 2,3,4 e. 1,2,3,4arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. The trachea contains O-shaped rings of hyaline cartilage. b. Goblet cells secrete serous fluid into the respiratory tract. c. The framework of the larynx is formed by nine pieces of cartilage, the largest of which is the thyroid cartilage. d. The pseudostratified ciliated columnar epithelium of the respiratory tract warms, filters, and humidifies the inspired air. e. The epithelium of the oropharynx changes from stratified columnar epithelium to simple squamous epithelium to enable it to resist abrasion from food.arrow_forwardContraction of the external intercostal muscles causeswhich of the following to occur?a. The diaphragm moves downward.b. The rib cage is compressed.c. The thoracic cavity volume decreases.d. The ribs and sternum move upward.arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education