Question

1/21 & 1/23 assignment
activity c: comprehending anatomy and physiology terminology - pp.205--212
instructions: answer the following questions.

1. list the three main functions of the respiratory system.

answer:

1. why do healthcare professionals usually measure a patients respiratory rate after they measure the patients pulse rate?

answer:

1. when a person suffers from an upper respiratory tract infection, which organs and structures may be affected?

answer:

1. which structures in the vestibular region of the nasal cavities act as a first line of defense against infection?

answer:
defining terms
instructions: define the following anatomical terms, and then use these terms to label the diagram that follows.

1. nasopharynx:

answer:

1. oropharynx:

answer:

1. laryngopharynx:

answer:

Explanation:

Comprehending Anatomy and Physiology Terminology

1. The three core functions of the respiratory system focus on gas exchange, protection, and vocalization/olfaction support.
2. Measuring respiratory rate after pulse rate avoids altering the patient's natural breathing pattern, as awareness of being observed can change respiratory rate.
3. Upper respiratory tract infections target structures above the larynx, including nasal and oral passage-related organs.
4. The vestibular region of the nasal cavities has physical barriers that trap pathogens before they enter deeper respiratory structures.

Defining Terms

1. The nasopharynx is a specific segment of the pharynx located behind the nasal cavity, with a clear anatomical position and function.
2. The oropharynx is the middle part of the pharynx, positioned behind the oral cavity, serving as a shared passage for food and air.
3. The laryngopharynx is the lowest segment of the pharynx, connecting to the larynx and esophagus, directing air and food to their respective pathways.

Answer:

Comprehending Anatomy and Physiology Terminology

1. 1. Gas exchange: $\text{O}_2$ uptake and $\text{CO}_2$ removal
2. Protection: Filtering, warming, humidifying air; trapping pathogens
3. Sound production: Assisting vocal cord vibration (phonation)
4. Patients may alter their breathing if they know it is being measured, so measuring respiratory rate after pulse rate ensures the reading reflects their natural, unaltered respiratory pattern.
5. Nasal cavities, paranasal sinuses, pharynx (nasopharynx, oropharynx), larynx, and trachea (upper portion) may be affected.
6. Nasal hairs (vibrissae) and the moist, mucus-coated epithelial lining of the vestibular region act as the first line of defense.

Defining Terms

1. nasopharynx: The uppermost part of the pharynx, located posterior to the nasal cavity and superior to the soft palate; it serves as a passage for air and connects to the eustachian tubes.
2. oropharynx: The middle portion of the pharynx, located posterior to the oral cavity, extending from the soft palate to the hyoid bone; it is a shared passage for both air and food.
3. laryngopharynx: The lowermost segment of the pharynx, located inferior to the hyoid bone and posterior to the larynx; it directs air to the larynx and food to the esophagus.