Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation.

Download scientific diagram | Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation. Illustration based on magnetic resonance imaging (MRI) of natural chest movement [13]. from publication: Breathing Rate Estimation from Head-Worn Photoplethysmography Sensor Data Using Machine Learning | Breathing rate is considered one of the fundamental vital signs and a highly informative indicator of physiological state. Given that the monitoring of heart activity is less complex than the monitoring of breathing, a variety of algorithms have been developed to estimate | Photoplethysmography, Machine Learning and Motion | ResearchGate, the professional network for scientists.

11.3 Circulatory and Respiratory Systems – Concepts of Biology – 1st Canadian Edition

Anatomy of breathing: Process and muscles of respiration

Inspiration vs. Expiration Breathing, Cycles & Muscles

Lower Respiratory System

Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation.

Heart, lungs, and diaphragm during: (a) inhalation; (b) exhalation.

Breathing CK-12 Foundation

Anatomy In Motion - What Happens When You Breathe? By The National Heart, Lung, and Blood Institute (NHLBI) Breathing In (Inhalation) When you breathe in, or inhale, your diaphragm contracts (tightens) and