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Bio 340-Ashley > Respiratory > Flashcards

Flashcards in Respiratory Deck (27):
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Branch of a respiratory bronchiole around which alveolar sacs are emptied

Alveolar ducts

1

Highly phagocytic cell found in the alveolar walls of the lungs. Also called a dust cell

Alveolar macrophages

2

A cluster of alveoli that share a common opening.

Alveolar sac

3

A small hollow or cavity; an air sac in the lungs; milk-secreting portions of a mammary gland.

Alveolus

4

Neuron capable of responding to changes in blood, air or fluid pressure

Baroreceptors

5

The trachea, bronchi, and their branching structures up to and including the terminal bronchioles

Bronchial tree

6

Branch of a tertiary bronchus further dividing into terminal bronchioles( distributed to lobules of the lung), which divide into respiratory bronchioles (distributed to alveolar sacs)

Bronchioles

7

Sensory receptor that detects the presence of a specific chemical

Chemoreceptors

8

A large, leaf-shaped piece of cartilage lying on top of the larynx, attached to the thyroid cartilage; it's attached portion is free to move up and down to cover the glottis (vocal folds and rima glottidis) during swallowing

Epiglottis

9

Breathing out; expelling air from the lungs into the atmosphere

Exhalation

10

The exchange of respiratory gases between the lungs and blood

External respiration

11

Lack of oxygen at the tissue level

Hypoxia

12

The act of drawing air into the lungs. Also called inspiration

Inhalation

13

The inferior portion of the pharynx, extending downward from the level of the hyoid bone that divides posteriorly into the esophagus and anteriorly into the larynx. Also hypopharynx

Laryngopharynx

14

The exchange of respiratory gases between blood and body cells. Also called tissue respiration or systemic gas exchange.

Internal respiration

15

The voice box, a short passage that connects the pharynx with the trachea.

Larynx

16

The neurons of the respiratory center in the medulla oblongata that consist of dorsal respiratory group that is active during normal quiet breathing and the ventral respiratory group that is active during forceful
breathing

Medullary respiratory center

17

The superior portion of the pharynx, lying posterior to the nose and extending inferiorly to the soft palate.

Nasopharynx

18

The intermediate portion of the pharynx, lying posterior to the mouth and extending from the soft palate to the hyoid bone.

Oropharynx

19

Hemoglobin combined with oxygen

Oxyhemoglobin

20

The throat: a tube that starts at the internal nares and runs partway down the neck, where it opens into the esophagus posteriorly and the larynx anteriorly.

Pharynx

21

Small potential space between the visceral and parietal pleurae

Pleural cavity

22

The inflow (inhalation) and outflow (exhalation) of air between the atmosphere and the lungs. Also called breathing

Pulmonary ventilation

23

Complex mixture of phospholipids and lipoproteins, produced by type II alveolar (septal) cells in the lungs, that decreases surface tension

Surfactant

24

Tubular air passageway extending from the larynx to the fifth thoracic vertebra. Also called windpipe

Trachea

25

Pair of mucous membrane folds below the ventricular folds that function in voice production

Vocal folds

26

A part of the respiratory center in the pons that continually send inhibitory nerve impulses to the dorsal respiratory group, limiting inhalation and facilitating exhalation.

Pneumotaxic area/ pontine respiratory group