Question

left descriptions: the practitioner slides a sheath over the needle, locking it into place; needles with a blunt tip that slides forward through the needle past the sharp point; needles have a sheath over the barrel of the needle; the needle retracts inside barrel of the syringe after its activated. right terms: re-sheathing needles; self-blunting needle; retractable needles; self-sheathing needles

Explanation:

To solve this matching problem, we analyze each type of needle and its corresponding description:

1. Re - sheathing needles

The description "The practitioner slides a sheath over the needle, locking it into place" matches Re - sheathing needles. Because in re - sheathing, the practitioner manually slides a sheath over the needle to cover it.

2. Self - blunting needle

The description "Needles with a blunt tip that slides forward through the needle past the sharp point" matches Self - blunting needle. The key here is the blunt tip that moves to cover the sharp part, which is characteristic of self - blunting needles.

3. Retractable needles

The description "The needle retracts inside barrel of the syringe after its activated" matches Retractable needles. Retractable needles are designed to retract into the syringe barrel after use.

4. Self - sheathing needles

The description "Needles have a sheath over the barrel of the needle" matches Self - sheathing needles. These needles come with a sheath over the barrel, and the sheath can be used to cover the needle.

So the matches are:

• Re - sheathing needles: The practitioner slides a sheath over the needle, locking it into place
• Self - blunting needle: Needles with a blunt tip that slides forward through the needle past the sharp point
• Retractable needles: The needle retracts inside barrel of the syringe after its activated
• Self - sheathing needles: Needles have a sheath over the barrel of the needle

Answer:

To solve this matching problem, we analyze each type of needle and its corresponding description:

1. Re - sheathing needles

The description "The practitioner slides a sheath over the needle, locking it into place" matches Re - sheathing needles. Because in re - sheathing, the practitioner manually slides a sheath over the needle to cover it.

2. Self - blunting needle

The description "Needles with a blunt tip that slides forward through the needle past the sharp point" matches Self - blunting needle. The key here is the blunt tip that moves to cover the sharp part, which is characteristic of self - blunting needles.

3. Retractable needles

The description "The needle retracts inside barrel of the syringe after its activated" matches Retractable needles. Retractable needles are designed to retract into the syringe barrel after use.

4. Self - sheathing needles

The description "Needles have a sheath over the barrel of the needle" matches Self - sheathing needles. These needles come with a sheath over the barrel, and the sheath can be used to cover the needle.

So the matches are:

• Re - sheathing needles: The practitioner slides a sheath over the needle, locking it into place
• Self - blunting needle: Needles with a blunt tip that slides forward through the needle past the sharp point
• Retractable needles: The needle retracts inside barrel of the syringe after its activated
• Self - sheathing needles: Needles have a sheath over the barrel of the needle