7th week: The lungs. Protective mechanisms of the airways. The pleura. Respiratory movements.

New channel Anatomia Pecs: title sample judged 'whole' (Official university anatomy department channel with weekly full lectures and histology/embryology teaching sessions in H); passed a second screen for sellers/exam-prep/re-uploads; 2 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.