Which of these disorders is related to loss of elasticity of the lungs?
A) asthma
B) emphysema
C) tuberculosis
D) pneumonia
E) sudden infant death syndrome
B
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The outermost, tough portion of a hair shaft is the
A) cuticle. B) soft keratin. C) medulla. D) external root sheath. E) cortex.
The presence of ____________________ in the stomach is the main stimulus to enhance gastric secretion
Fill in the blank(s) with correct word
Distinguish between the two types of supporting tissues with respect to their characteristic fibers
A) Bone contains only elastic fibers, whereas cartilage can contain collagen, elastic, and reticular fibers. B) Bone contains only collagen fibers, whereas cartilage can contain collagen, elastic, and reticular fibers. C) Bone contains only reticular fibers, whereas cartilage can contain collagen, elastic, and reticular fibers. D) Bone can contain collagen and elastic fibers, whereas cartilage contains only collagen fibers. E) Bone can contain collagen, elastic, and reticular fibers, whereas cartilage contains only elastic fibers.
What is the primary site on a neuron for receiving signals from other neurons?
A) The axon collaterals B) The somas C) The synaptic knobs D) The dendrites E) The axons