Frog Organs
Organ systems of the toad reviewer
DIGESTIVE. ESOPHAGUS Stratified squamous epithelium Submucosa The muscularis externa Esophageal glands.
The Digestive System: Intestines and Absorption Human Bio 11.
Opening Activity
By: Hira Khan. A sphincter is usually a circular muscle, that normally maintains constriction of a natural body passage and which relaxes as required.
Digestive
Minerals
