Question

1. a pacemaker can be external or internal and usually generates electrical stimuli to the heart muscle with: fixed impulses only fixed and/or alternate impulses alternate impulses only none of the above 53) the term “bronchoscope” literally means: instrument to view the eye instrument to view the lungs instrument to view the ear instrument to view trachea - like structures

Explanation:

For question 52, pacemakers can generate fixed and/or alternate impulses to regulate the heartbeat. For question 53, "broncho -" refers to the bronchi in the lungs and "-scope" means an instrument for viewing, so a bronchoscope is an instrument to view the lungs.

Answer:

1. B. fixed and/or alternate impulses
2. B. instrument to view the lungs