Question 1 function of the ciliary muscles in the eye is to a. Convert light into nerve impulses b. Give the eye its shape c. Regulate the amount of light that enters the eye d. Control the thickness of the lens ​

either two or three

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.