BIOLOGY TOPIC 6 HUMAN PHYSIOLOGY: What happens in inspiration? what muscles and bones are involved? (6)

Question

What happens in inspiration? what muscles and bones are involved? (6)

Sammy Universe · Accepted Answer

diaphragm contracts
volume increases
external intercostal muscles contract
ribs up and out
sternocleidomastoid = elevates sternum
pectoralis minor = pulls rib out

BIOLOGY TOPIC 6 HUMAN PHYSIOLOGY

What happens in inspiration? what muscles and bones are involved? (6)

Diaphragm contracts volume increases external intercostal muscles contract ribs up and out sternocleidomastoid = elevates sternum pectoralis minor = pulls rib out

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