Which muscle bends the lower arm toward the upper arm? A) ...

[Mr. Wonderful]

Which muscle bends the lower arm toward the upper arm?
 
  A) triceps brachii
  B) thenar
  C) biceps brachii
  D) rectus abdominis

Question 2

An instrument used to record an electrical wave visually on a fluorescent screen is a/n:
 
  A) radioscopy.
  B) microscope.
  C) oscilloscope.
  D) endoscope.

[chinwesucks]

Answer to Question 1

C
Explanation: A) This muscle extends the lower arm. It does not bend it.
B) This muscle is in the thumb.
C) Correct
D) This muscle is in the abdomen, not the lower arm.

Answer to Question 2

C
Explanation:
A) Radioscopy is viewing internal body structures using x-rays.
B) A microscope is used to view very small things.
C) Correct.
D) An endoscope is used to view internal structures.