Respiration

Question 1

Alveolus

Answer 1

A tiny air sack within the lungs, surrounded by capillaries, were gas exchange with the blood occurs

Question 2

Bronchiole

Answer 2

A narrow tube, formed by repeated branching of the bronchi, that surround air into the alveoli

Question 3

Bronchus

Answer 3

A tube that conducts air from the trachea to each lung

Question 4

Bulk flow

Answer 4

The movement of many molecules of a gas or liquid in bulk from an area of higher pressure to an area of lower pressure 

Question 5

Conducting portion

Answer 5

The portion of the respiratory system in lung-breathing vertebrae that carries air to the Alveoli

Question 6

Counter current exchange

Answer 6

A mechanism for the transfer of some property, such as heat or dissolved substance, from one fluid to another, generally without the fluids actually mixing 

Question 7

Diaphragm

Answer 7

In the respiratory system, a dome shaped muscle forming the floor of the chest cavity; when the diaphragm contracts, it flattens, enlarging the chest cavity and causing air to be drawn into the lungs 

Question 8

Epiglottitis

Answer 8

A flap of cartilage in the lower pharynx that covers the opening to the larynx during swallowing

Question 9

Exhalation

Answer 9

The act of releasing air from the lungs, which results from a relaxation of the respiratory muscles

Question 10

Gas exchange portion

Answer 10

The portion of the respiratory system in lung breathing vertebrae were gas is exchanged in the alveoli of the lungs

Question 11

Hemoglobin

Answer 11

The iron containing proteins that gives red blood cells their color; binds to oxygen in the lungs and releases it to the tissue

Question 12

Inhalation

Answer 12

The active drawing air into the lungs by enlarging a chest cavity

Question 13

Larynx

Answer 13

The portion of the air passage between the pharynx and the trachea; containing the vocal cords

Question 14

Lung

Answer 14

In Terrestrial vertebrae, one of the pair of respiratory organs in which gas exchange occurs; consists of inflatable chambers within a chest cavity

Question 15

Pharynx

Answer 15

Invertebrates, a chamber that is located at the back of the mouth, shared by the digestive and respiratory systems; in some invertebrates, the portion of the digestive tube, just posterior to the mouth

Question 16

Respiration

Answer 16

Terrestrial vertebrae, the act of moving air into the lungs and out of the lungs during respiration, oxygen diffuses from the air in the lungs into the circulatory system, and carbon dioxide diffuses from the circulatory system into the air in the lungs

Question 17

Respiratory centre

Answer 17

A cluster of neurons, located in the medulla of the brain, that sends rhythmic births of nerve impulses to the respiratory muscles, resulting in breathing

Question 18

Respiratory membrane

Answer 18

Within the lungs, diffusion of the epithelial cells of the alveoli and the endothelial cells that form the walls of surrounding capillaries

Question 19

Respiratory system

Answer 19

A group of organs that work together to facilitate gas exchange, the intake of oxygen and the removal of carbon dioxide

Question 20

Spiracle

Answer 20

An opening in the body wall of insects through which air enters the trachea

Question 21

Trachea

Answer 21

In terrestrial vertebrae, a flexible tube, supported by rings of cartilage, that conduct air between the larynx and the bronchi

Question 22

Tracheae

Answer 22

The respiratory organ of insects, consisting of a set of airfield tubes, leading from openings, called spiracles and branching extensively through the body

Question 23

Vocal cords

Answer 23

A pair of bands of elastic tissue that extends across the opening of the larynx and produce sound when Air Force between them