During the growth of a long bone, how is the epiphysis forced farther from the shaft?
The chondrocytes of the epiphyseal cartilage enlarge and divide, increasing the thickness of the cartilage. On the shaft, the chondrocytes become ossified, "chasing" the expanding epiphyseal cartilage away from the shaft.
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The hormones that are important for coordinating the immune response are
A) thymosins. B) corticosteroids. C) aldosterones. D) thyroxines. E) somatotropins.
The type of resistance that is acquired as a result of developing a disease is
A) artificially acquired passive immunity. B) naturally acquired passive immunity. C) artificially acquired active immunity. D) naturally acquired active immunity.
The thoracic cage forms a semirigid chamber that can increase and decrease in volume during respiration.
Indicate whether the statement is true or false.
What labeled structure in the figure is the ligamentum arteriosum?
a) A b) B c) C d) D