How many muscles are involved in breathing?
Muscles involved in breathing
Mark the correct pair of muscles involved in normal breathing in humans.
(a) External and internal intercostal muscles
(b) Diaphragm and abdominal muscles
(c) Diaphragm and external intercostal muscles
(d) Diaphragm and intercostal muscles
Mark the correct pair of muscles involved in the normal breathing in humans during expiration.
Does blinking and breathing involve involuntary muscles or voluntary muscles?