Describe the role of the lens in vision. Name and explain the disease caused by the hardening of the lens
What will be an ideal response?
1. The lens is the only structure in the eye that can change shape to refract light. The lens becomes more or less convex in order to properly focus light on the retina.
2. Cataracts are caused when the lens becomes increasingly hard and opaque. Vision becomes hazy and distorted, and blindness can occur in the affected eye.
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The foramen magnum is associated with which cranial bone?
A. Frontal B. Parietal C. Occipital D. Ethmoid E. Sphenoid
Which region is the epigastric region?
a) (A) b) (B) c) (C) d) (D) e) (E)
Briefly describe the events leading to the implantation of the blastocyst in the uterus, including how it is nourished
What will be an ideal response
Vaccination stimulates:
A) natural active immunity. B) artificial active immunity. C) natural passive immunity. D) artificial passive immunity. E) artificial specific immunity.