Animal Structure

Question 1

Epiglottis

Answer 1

Flap that the trachea is pressed against when food is in the pharynx; prevents food and other substances from entering trachea and lungs

Question 2

Trachea

Answer 2

Lined with rings of cartilage (vacuum hose), cilia (little hairs) and mucus - Passageway between nose/mouth and lungs - filters and cleans the air

Question 3

Intercostal Muscles

Answer 3

Two types: external and internal - move the rib bones to increase the chest space during inhalation and compress the chest space during exhalation

Question 4

Bronchus

Answer 4

Two, cilia and mucus lined tubes connecting the trachea to the bronchioles - One tube into each lung - Still have cartilage in the walls

Question 5

Lungs

Answer 5

Two sacks containing microscopic air sacs, blood vessels and the bronchioles

Question 6

Nasal Passages

Answer 6

Contains turbinate bones = more surface area
Warms the air and adds moisture - hairs filter out bacteria and other airborne particles

Question 7

Larynx

Answer 7

Voice box which allows for production of sound

Question 8

Pleural Membranes

Answer 8

Cover the lungs and line the thoracic cavity - creates pleural cavity (fluid filled layer) that keeps the lungs and ribs from creating friction when they slide by each other

Question 9

Diaphragm

Answer 9

Large dome shaped sheet of muscle that separates the thoracic cavity from the abdominal cavity

Question 10

Bronchioles

Answer 10

Smaller tubes branching off the bronchi - have the cartilage, mucous, and cilia for trapping particulates, bacteria and fungi

Question 11

Alveoli

Answer 11

Microscopic air sacs surrounded by capillaries - site of gas exchange

Question 12

Pulmonary capillaries

Answer 12

Microscopic blood vessels that wrap around the alveoli and contain the plasma and red blood cells that deliver carbon dioxide from the cells and pick up oxygen from the alveoli

Question 13

Red blood cells do what?

Answer 13

Carry oxygen to all cells in body

Question 14

White blood cells do what?

Answer 14

Help fight infections and aid immune process

Question 15

Platelets

Answer 15

Help with blood clotting helps stop blood/blood loss

Question 16

Plasma

Answer 16

Liquid part of blood

Question 17

Veins

Answer 17

Carries blood back to heart

Question 18

Arteries

Answer 18

Carries blood away from heart

Question 19

Capillaries

Answer 19

Smallest blood vessels connect arteries and veins
Capillaries surround body cells and tissues to deliver and absorb oxygen, nutrients, and other substances.