The esophagus has several variations from the standard plan of the GI tract. These include
A) epithelium of mucosa is stratified squamous.
B) epithelium of mucosa is simple columnar.
C) muscularis externa has some skeletal muscle.
D) epithelium of mucosa is stratified squamous and simple columnar.
E) epithelium of mucosa is simple columnar and muscularis externa may be striated muscle.
Question 2
Steroid hormones
A) are proteins.
B) cannot diffuse through cell membranes.
C) bind to receptors in the nucleus of their target cells.
D) act on target cells by activating second messenger cascades.
E) are transported in the blood dissolved in the plasma.
Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is
How to choose the right payment plan with changing conditions (Question 2)
Plan and Reconstruction Drawing of the house of the Silver Wedding
What Is a Standard Drink?
Body plan of an aquatic snail and micrograph of a radula
Energy homeostasis is regulated primarily by the brain, gastrointestinal tract, other organ systems,