A. Narrowing of the pyloric sphincter.
B. Involuntary contraction of the pyloric sphincter.
C. No opening of the esophagus (into the stomach).
Topics:Regulation of Urine Formation Human Circulatory System Plasmid Principle of Health Science Trichology Molecular Basis of Inheritance Human Organs SCI CH2-1 Careers in Health Care Epithelial Tissue Cell Theory Bacteria and Viruses Stress Respiratory and Urinary Year 7 Nutrition
Other quiz: Respiratory and Urinary
How is the female urethra different from the male urethra?
A. It is longer
B. It is wider
C. It is shorter
D. It is more narrow