lungs

Question 1

new alveoli develop until

Answer 1

8 years old

Question 2

bronchioles do not have_____

Answer 2

cartilage in their walls

Question 3

conducting vs respiratory alveoli

Answer 3

conducting carry air but have no glands or alveoli

respiratory have alveoli

Question 4

what organ has dual arterial supply and venous drainage

Answer 4

lungs

-pulmonary and bronchial (2 for left, 1 for right)

Question 5

pulmonary embolism usually travels to heart from

Answer 5

deep venous thrombosis (lower extremities)

Question 6

is plurae sensitive?

Answer 6

parietal plura feels pain

Question 7

phrenic nerve arises from

Answer 7

C3-C5

Question 8

phrenic vs vagus positioning

Answer 8

phrenic is anterior to root of lung

vagus is posterior

Question 9

where is thymus

Answer 9

apical and anterior to heart

Question 10

respiratory development

Answer 10

4-5 weeks - pharyngeal gut –>respiratory diverticulum –> trachea and lung buds
right grows faster and straighter, left is more lateral

Question 11

tracheoesophageal fistula

Answer 11

connection between trachea and esophagus

gastric acid can reflux to lungs; failure of primitive foregut

Question 12

lung parenchyma comes from
plurae come from
innervation comes from

Answer 12

endoderm
mesoderm
ectoderm

Question 13

deep chest pain due to

local pain due to

Answer 13

phrenic

intercostal

Question 14

triangle of auscultation

Answer 14

latissimus dorsi, trapezius, lateral scapula

floor = rhomboids

Question 15

visceral plura

Answer 15

cant feel pain but can sense stretch and pressure

Question 16

what innervates visceral plura

Answer 16

pulmonary plexus

Question 17

anthracosis

Answer 17

natural blue/black pigment in lungs

death cells/macrophages that trap carbon pigment (worse in smokers obv)