The root aden in adenoma means: A) pertaining to. B) gland. ...

[scienceeasy]

The root aden in adenoma means:
 
  A) pertaining to.
  B) gland.
  C) pine cone.
  D) giant.

Question 2

The ________ is called the pacemaker of the heart.
 
  A) sinoatrial node
  B) bundle of His
  C) atrioventricular node
  D) bicuspid

[dellikani2015]

Answer to Question 1

B
Explanation: A) Numerous suffixes mean pertaining to such as -ic and -al.
B) Correct.
C) The root pine in pineal means pine cone.
D) The root gigant in gigantism means giant.

Answer to Question 2

A
Explanation: A) Correct. The heartbeat starts at this node.
B) The bundle of His carries electrical stimuli to the ventricles.
C) The atrioventricular node sends the stimuli to the bundle of His from the SA node.
D) The bicuspid (mitral valve) allows blood to flow to the left ventricle and closes to prevent its return to the left atrium.