Thorax and Respiratory Tract

Question 1

Answer 1

External intercostal muscles

Question 2

Answer 2

Internal intercostal muscles

Question 3

what is this muscle and what is its function

Answer 3

Levator costarum-elevate the ribs

Question 4

what cavity can the lungs be found

Answer 4

left and right pleural cavity

Question 5

what structure contains thoracic organs excluding the lungs

Answer 5

mediastinum

Question 6

what is the region where the trachea splits into two, what is its name

Answer 6

trachea bifurcation, divides into the left and right principle bronchi

Question 7

approximately at what vertebrae where does bifurcation of the trachea occur

Answer 7

4th or 5th thoracic

Question 8

what makes the hard lumpy effect on the trachea

Answer 8

tracheal cartilages

Question 9

Answer 9

Carina of trachea

Question 10

Why is the right principal bronchus shorter and wider than the left?

Answer 10

The right lung sits higher in thje thorax because of the positioning of the liver, therefore the bronchi doed not need to travel as far, the right lung has a greatert capacity, hence the greater principle bronchi width

Question 11

what is this structure and what is its role?

Answer 11

Hilum, allows key structures to enter and exit the lungs

Question 12

What is the most superior part of the lung called

Answer 12

Apex of the lung

Question 13

what is the most inferior part of the lung called

Answer 13

Base of the lung

Question 14

what are the margins of the lungs called

Answer 14

Anterior and inferior margins

Question 15

What are the surfaces of the lung?

Answer 15

Costal , Medial and Diaphragmatic

Question 16

What are the lobes and fissures of the right lung?

Answer 16

superior lobe (horizontal fissure) middle lobe (oblique fissure) inferior

Question 17

What are the lobes and fissures of the left lung?

Answer 17

superior (oblique fissure) inferior

Question 18

identify and name the three nasal conchae. name the depression structures beneath each conchae

Answer 18

superrior, middle and inferior conchae, superior, middle and inferior meatus

Question 19

opening that connects to the sphenoid sinus, top right of nasal cavity

Answer 19

sphenoethmoid recess

Question 20

locate the nares

Answer 20

nostrils

Question 21

what is the epiglottis and what is its role?

Answer 21

cartilage found between the tongue and the pharynx and stops food and liquids from entering the trachea

Question 22

name and role

Answer 22

Hyoid bone, acts as an anchor for muscles involved in speaking, swallowing and breathing

Question 23

what membrane fills the gap between the hyoid and thyroid

Answer 23

thyrohyoid membrane