释义 |
carotid body noun[ C ] anatomy specializeduk /kəˌrɒt.ɪd ˈbɒd.i/ us /kəˌrɑː.t̬ɪd ˈbɑː.di/ one of two small organs in the carotid arteries(= tubes in the neck that take blood to the brain) that check oxygen levels in the blood and help control breathing: These alarm signals are generated in the brain and in special receptors called carotid bodies in the large arteries in the neck. He had no family history of carotid body tumours. Cells of the carotid body are sensitive to changes in pH and temperature of the blood. Carotid body hyperplasia can occur in people living in high altitudes who are exposed to chronic hypoxia. The study found that the lack of blood oxygenation detected in numerous COVID-19 patients was possibly due to carotid bodies being infected by the SARS-CoV-2 coronavirus. SMART Vocabulary: related words and phrases The circulatory system & blood ABO accessory pathway adventitia adventitial ANA auricle bicuspid valve gamma globulin glomus granulocyte haematogenous haemic haemodialysis phagocyte precava pulmonary artery pulmonary vein pulmonic Purkinje fibre tricuspid valve |