Hrm/531 Week 3

1.
The abdomen is divided into four quadrants: clockwise, the Left Upper Quadrant (LUQ), the Right Upper Quadrant (RUQ), the Right Lower Quadrant (RUQ), and the Left Lower Quadrant (LLQ) (Marieb, 2010, p. 17).

2.
The transverse plane divides a structure into superior (upper) and inferior (lower) portions. The frontal or coronal plane divides a structure into anterior (front) and posterior (back) portions (Marieb, 2010, p. 15).

3.
Liver – RUQ and LUQ
Gallbladder – RUQ
Stomach – LUQ
Ascending colon – RLQ
Transverse colon – LUQ and RUQ
(Marieb, 2010, p. 20)

4.
Liver – right hypochondriac, epigastric, left hypochondriac, right lumbar
Gallbladder – right hypochondriac, right lumbar
Stomach –epigastric
Ascending colon – right hypochondriac,

118).

11.
Constant regeneration of epithelia would increase the margin for error in DNA replication and in the cell cycle. “Epithelium has a high regenerative capacity … if and when their apical-basal polarity and lateral contacts are destroyed, epithelial cells begin to reproduce themselves rapidly” (Marieb, 2010, p. 116).

12.
Adenoma is a benign tumor that may affect multiple organs, while adenocarcinoma is a malignant tumor that may affect multiple organs. One is benign and one is cancerous ("Definition of adenoma in English").

13.
Sarcoma is a cancer that arises from mesenchyme-originated cells (i.e., bone or muscle) and can be either bone or soft tissue. Carcinoma is a cancer that arises from epithelial cells ("What is a soft tissue sarcoma?").

14.
The walls of the intestine may contain a mucous membrane (epithelia, lamina propria, and muscularis mucosa), submucosa (muscularis externa, inner circular fibers, outer longitudinal fibers), and serosa (mesothelium, connective tissue) ("Epithelial Cells").

15.
From medial to lateral to the lumen, there is the mucosa, then the submucosa, and finally the serosa ("SIU SOM Histology