Respiratory System Flashcards

1
Q

Is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.

A

Respiratory System

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Gas exchange in the lungs occurs in millions of small air sacs called _______ in mammals and reptiles, but atria in birds.

A

Alveoli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Gas exchange in the lungs occurs in millions of small air sacs called alveoli in mammals and reptiles, but _____ in birds.

A

Atria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the _______, which branches in the middle of the chest into the two main bronchi.

A

Trachea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main _______.

A

Bronchi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the ___________.

A

Bronchioles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In birds, the bronchioles are termed ___________.

A

Parabronchi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Air has to be pumped from the environment into the alveoli or atria by the process of _________ which involves the muscles of respiration.

A

Breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In most fish, and a number of other aquatic animals the respiratory system consists of _____, which are either partially or completely external organs, bathed in the watery environment.

A

Gills

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Filamentous respiratory organs that increase surface area for gas exchange in water.

A

Gills

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Saclike respiratory organs with branching tubes that deliver air to a respiratory surface.

A

Lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

They have the most efficient vertebrate lungs.

A

Birds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Supplemental airway when breathing is labored.

A

Oral Cavity (Mouth)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Double-layer membrane with a fluid-filled space between layers; keeps lungs airtight and helps them stick to chest wall during breathing.

A

Pleural Membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

At rib cage, skeletal muscles with roles in breathing. There are two sets of intercostal muscles (external and internal).

A

Intercostal Muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Muscle sheet between the chest cavity and abdominal cavity with roles in breathing.

A

Diaphragm

17
Q

Chamber in which air is moistened, warmed, and filtered, and in which sounds resonate.

A

Nasal Cavity

18
Q

Airway connecting nasal cavity and mouth with larynx; enhances sounds; also connects with esophagus.

A

Pharynx (Throat)

19
Q

Closes off larynx during swallowing.

A

Epiglottis

20
Q

Airway where sound is produced; closed off during swallowing.

A

Larynx (Voice Box)

21
Q

Airway connecting larynx with two bronchi that lead into the lungs.

A

Trachea (Windpipe)

22
Q

Lobed, elastic organ of breathing; enhances gas exchange between internal environment and outside air.

A

Lung (One of a Pair)

23
Q

Increasingly branched airways starting with two bronchi and ending at air sacs (alveoli) of lung tissue.

A

Bronchial Tree