During which event are the primary germ layers formed?
A. Implantation
B. Cleavage
C. Conception
D. Organogenesis
E. Gastrulation
E. Gastrulation
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The spinous process has a bifid tip in most __________ vertebrae.
A. cervical B. thoracic C. lumbar D. sacral E. coccygeal
Which is an alternate term for compact bone?
A. Trabecular bone B. Spongy bone C. Diploe D. Cancellous bone E. Cortical bone
Which of the following pancreatic enzymes acts on glycogen and starches?
a) Chymotrypsin b) Amylase c) Trypsin d) Phosphatase e) Nucleosidase
Which structure in the fetus enables blood to bypass the lungs and pass directly from the right atrium to the left atrium?
A. Truncus arteriosus B. Ductus arteriosus C. Bulbus cordis D. Sinus venosus E. Foramen ovale