Question

1. what is the hard white outer layer of the eye?

pupil
choroid
iris
sclera

1. an intravenous injection is:

within a vein
within an artery
between veins
above the vein

Explanation:

Question 41

To determine the hard white outer layer of the eye, we analyze each option:

• Pupil: The opening in the center of the iris that controls light entry, not a white outer layer.
• Choroid: A vascular layer between the retina and sclera, not the hard white outer layer.
• Iris: The colored part of the eye controlling pupil size, not the outer layer.
• Sclera: The tough, white, outer protective layer of the eye.

To define intravenous injection, we analyze the term "intravenous": "Intra-" means within, and "venous" relates to veins. So:

• Within a vein: Matches the definition of intravenous (IV) injection.
• Within an artery: Is an intra-arterial injection, not intravenous.
• Between veins: Not the meaning of intravenous.
• Above the vein: Does not relate to intravenous.

Answer:

D. sclera

Question 42