Which statement below best describes the term cardiac preload?
A. The pressure the ventricles stretch at the end of systole.
B. The amount the ventricles stretch at the end of diastole.
C. The pressure the ventricles must work against to pump blood out of the heart.
D. The strength of the myocardial cells to shorten with each beat.
Answer: B. The amount the ventricles stretch at the end of diastole.
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Which is correct regarding chromosome numbers during oogenesis?
A. Both primary oocytes and secondary oocytes are haploid. B. Both primary oocytes and secondary oocytes are diploid. C. Primary oocytes are haploid, secondary oocytes may be haploid or diploid depending on their meiotic stage. D. Primary oocytes are haploid, secondary oocytes are diploid. E. Primary oocytes are diploid, secondary oocytes are haploid.
The five vertebral regions are the cervical, thoracic, lumbar, sacral, and
A) medial. B) proximal. C) distal. D) coccygeal. E) os coxal.
The epidermal dendritic cells are able to play an important immune response role by their phagocytic activity
Indicate whether this statement is true or false.
Substances that provoke an immune response are called ________.
A. antibodies B. interferons C. antigens D. immunogens