Chapter 12: Respiratory System: Lungs and Breathing Flashcards Preview

Biology 1102 > Chapter 12: Respiratory System: Lungs and Breathing > Flashcards

Flashcards in Chapter 12: Respiratory System: Lungs and Breathing Deck (28):
1

Animal gas exchange organs of breathing.

Lungs

2

Lung-enclosing serous membranes that serve to reduce friction between lungs and associated body cavity walls.

Pleura

3

Volume within animals containing the lungs.

Pleural cavity

4

Exchange by animals of gasses with those in the air as mediated by active flow of air over specialized body tissues.

Breathing

5

Uptake of oxygen from and release of carbon dioxide to the environment by an organism.

External respiration

6

Uptake of oxygen and release of carbon dioxide within the body.

Internal respiration

7

Somewhat external air handling anatomy including the external nose, the associated nasal cavity, and the pharynx.

Upper respiratory tract

8

Anatomy associated with the warming, filtering, and moistening of air in the course of inhalation.

Nose

9

The internal volume found behind the external nose.

Nasal cavity

10

Volumes that are found within aspects of bodies, particularly air-filled spaces within bones.

Sinuses

11

The back of the mouth and nose, also known as the throat

Pharynx

12

Larynx, trachea, bronchi, bronchioles, and alveoles.

Lower respiratory tract

13

Post-pharynx cartilaginous connector to the trachea that includes the epiglottis, glottis, and vocal cords.

Larynx

14

Flap responsible for sealing the larynx during swallowing so that passage of food or water into the trachea may be avoided.

Epiglottis

15

Connective tissue associated with the larynx that serves to impart vibrations on air especially during exhalation.

Vocal cords

16

Cartilage reinforced, collapse-resistant passageway from larynx to lungs.

Trachea

17

Large tubes through which air passes within lungs.

Bronchi

18

Smaller tubes through which air passes within the lungs.

Bronchioles

19

Microscopic pouches within lungs where majority of gas exchange occurs.

Alveoli

20

Collections of microscopic pouches responsible for majority of gas exchange within lungs.

Alveolar sacs

21

Molecule that can simultaneously dissolve in both water and lipids, potentially resulting in suspension of the latter in the former.

Surfactant

22

Blood vessels that supply unoxygenated blood to the lungs.

Pulmonary arteries

23

Blood vessels that supply oxygenated blood to the heart.

Pulmonary veins

24

Means by which the rib cage is moved upward to effect inhalation.

Intercostal muscles

25

Means by which the thoracic cavity expands towards the abdominal cavity to effect inhalation.

Diaphragm

26

Amount of air entering the lungs per each inhalation or exiting the lungs per each exhalation under normal unforced conditions.

Tidal volume

27

Volume of air that is the difference between fully inflated lungs via inhalation and fully deflated lungs via exhalation.

Vital capacity

28

Cells found within the medulla oblongata of the brain stem that control the pace of breathing.

Respiratory center