Test 3 Respiratory & Digestion A&P Flashcards
(71 cards)
What organs are part of the upper respiratory tract
- Nose
- Nasopharynx
- Laryngopharynx
- Larynx
What organs are part of the lower respiratory tract
- Trachea
- Bronchial Tree
- Lungs
Functions of the nose
- Passageway for air going to and from the lungs
- nasal mucosa filters and warms air
- Smell receptors (Olfactory epithelium)
- resonated sound for speech
Paranasal sinuses
- Frontal
- Maxillary
- Ethmoid
- Sphenoid
Scientific name for the throat
*Pharynx
Scientific name for the voice box
*Larynx
Scientific name for the wind pipe
*Trachea
Three parts of the pharynx
- Nasopharynx
- Oropharynx
- Laryngopharynx
Seven openings to the pharynx
- Right & Left auditory (Eustachian) tubes
- 2 posterior nares
- Fauces
- Into the larynx (air passage)
- Into the esophagus (food & water passage)
Names and functions of the cartilages found in the larynx
*Epiglottis - covers air passage when swallowing
*Thyroid - holds air passage open
*Cricoid - connects larynx to trachea
*arytenoid
*Cuneiform
Corniculate
Parts of the Bronchial Tree and how many branches
- 2 Primary Bronchi (Right & Left lung)
- 5 Secondary Bronchi (3 right & 2 Left
- 20 Tertiary Bronchi (10 segments on either side)
What cell makes surfactant? Function of Surfactant?
*Type II Cell -
What is the diaphragm and its function?
Muscle used in breathing and separates the thorax cavity from the abdominopelvic cavity
Structure & location of the pleural membranes
- Parietal Pleura - lines the thoracic cavity; it partitions off the mediastinum
- Visceral Pleura - lies against the parietal pleura; contains pleural fluid for lubrication, avoiding friction and respirations are painless.
Examples of upper tract infections
- Rhinitis - inflammation of nose
- Pharyngitis - inflammation of throat
- Laryngitis - inflammation of vocal cords
Examples of lower tract infections
- TB - caused by bacteria (mycobacterium tuberculosis)
* Pneumonia (bacterial, viral, fungal)
Types of cells found in the alveolus
- Type I cell - endothelium cell
- Type II cell - makes surfactant
- Alveolar macrophages
What is 1 Standard Atmospheric Pressure?
760 mmHg
What is Boyle’s Law & formula
Volume of gas varies inversely with the pressure at constant temperature
P1V1=P2V2
What is occurring during inspiration to the volume of the lungs and the pressure changes occurring
- During inspiration, pressure in lungs is lower than outside
- diaphragm contracts and descends and volume increases
What muscles are working during inspiration?
- External intercostals
* diaphragm
What muscles are working during expiration?
- Internal intercostals
* diaphragm
Differences between forceful inspiration and normal inspiration
- Inspiration - diaphragm & external intercostals
* Forceful expiration - sternocleidomastoidf, pectoralis minor, & serratus anterior
What is Tidal Volume?
Volume inspired or expired per breath
Males 600mL
Females 500mL