The pigmented portion of the eye that has a rounded opening through which light passes is the _______
a. iris
b. lens
c. cornea
d. sclera
e. retina
a. iris
You might also like to view...
____________________ contractions are responsible for mixing the colonic contents, whereas ____________________ periodically propel the contents long distances
Fill in the blank(s) with correct word
Which is a TRUE statement about smooth muscle?
A. Smooth muscle is striated. B. Smooth muscle does not have thick and thin filaments. C. Smooth muscle does not use troponin-tropomyosin to regulate cross-bridge activity. D. Changes in cytosolic calcium do not regulate cross-bridge activity in smooth muscle. E. The myosin in smooth muscle requires phosphorylation before it can bind to ATP.
In order to keep urea levels in the body safe, an artificial kidney must be used every day.
Answer the following statement true (T) or false (F)
Small areas of the myocardium contracting chaotically is called
A) flutter. B) fibrillation. C) tachycardia. D) bradycardia.