What do atrial septal defects and ventricular septal defects have in common?
A) They cause all congenital heart diseases.
B) Both involve abnormal wall openings that separate the heart's right and left sides.
C) Blood flows from right atrium to left atrium.
D) Blood flows from right ventricle to left ventricle.
B
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The glial cell that myelinates and insulates axons in the peripheral nervous system is the
A. astrocyte. B. ependymal cell. C. neurolemmocyte. D. microglial cell. E. oligodendrocyte.
Where is the greatest volume of blood found in the body?
A. Pulmonary circuit B. Heart C. Arteries D. Veins E. Capillaries
In the temporomandibular joint, a pad of fibrocartilage called the ________ divides the synovial cavity into two separate chambers.
A. mandibular partition B. sphenomandibular ligament C. meniscus D. articular disc E. coronoid capsule
The condition known as "flat feet" is due to a lower-than-normal longitudinal arch in the foot. A problem with which of the following would most likely contribute to this condition?
A) a loose Achilles tendon B) weak tarsometatarsal joints C) weakness in the ligaments that attach the calcaneus to the distal ends of the metatarsals D) weakness in the ligaments that attach the talus to the tibia E) poor alignment of the phalanges with the metatarsals