thoracic cavity - boundaries & divisions

Question 1

thoracic inlet

Answer 1

the intersection of neck and thoracic cavity

Question 2

what does the thoracic inlet consist of

Answer 2

upper end of sternum, first thoracic vertebra, first ribs and associated costal cartilages

Question 3

thoracic outlet

Answer 3

irregular opening at inferior part of thorax

Question 4

what is thoracic outlet bounded by

Answer 4

by twelfth thoracic vertebra , twelfth ribs and lower edge of costal cartilages

Question 5

Thoracic cavity diagram

Answer 5

Question 6

How many Thoracic vertebrae

Answer 6

12 in total

Question 7

What are the 3 parts of the sternum

Answer 7

• manubrium
• body
• xiphoid process - no ribs attached

Question 8

Upper resp tract

Answer 8

• nasal/ oral cavity
• pharynx

Question 9

lower resp tract

Answer 9

• larynx
• trachea
• lungs

Question 10

alimentary canal

Answer 10

mucous membrane lined tube of digestive system starts at oral cavity and continues to the anus

Question 11

what does the lymphatic system consist of

Answer 11

capillaries and vessels

Question 12

what is the main function of a lymph

Answer 12

maintain fluid balance in tissue, absorb fat from digestive system and assist bodys defence system

Question 13

where does the thoracic lymphatic duct drain into

Answer 13

left subclavian vein

Question 14

where does the right lymphatic duct drain into

Answer 14

right subclavian vein

Question 15

main structures found within the thoracic cage

Answer 15

• heart
• lungs
• aorta
• trachea
• oesphagus
• ribs