Rectangle | Photography

Rectangles and Rectanguloid

Ashley Davidoff MD

Introduction

Rectangles in Black and White

Rectangles in Color

Windows Mason Rice Elementary School Newton Massachusetts

Boston Skyline from the Kennedy Library

Boston Kennedy library skyline Davidoff photo Courtesy Ashley Davidoff MD interesting accessory Boston Kennedy library skyline apartments columnar cells columnar epithelium shape rectangle

Rectangles Down the Stairway and Skylights

86066.800 Emory Atlanata Davidoff photography

The Pool and the Windows

Cobblestone Street Sorrento Italy

Firetruck in the Playground

Ropes in the Playground Mason Rice Elementary School Newton Massachusetts

Rectangles in the Spider Web

Rectangles in the Dragonfly’s Wings

Courtesy Betsy Barry 2012 110306p.8

Rectanguloids on a Leaf

Cracks in Dead Bark

Rectanguloid in Shape

bark of tree dead cracks shape rectangaloid rectangle reticular pattern orthogonal angles basic shapes biology Massachusetts Cortesy Ashley Davidoff Davidoff photography 110370p.8s

Rectangular Shape of the Thorax and Abdomen Istanbul Turkey

Wrestler Upside Down Newton Massachusetts

A Single Columnar Cell

Apartment Complex of Cells

An impression of the microscopic view of the ciliated columnar epithelium, with cilia that are sweeping dust particles to their freedom in the atmosphere.

Columnar Epithelium in Manhattan Skyrise

Columnar Epithelium of the Gallbladder

This is a medium power photomicrograph showing how delicate the mucosal fronds are. Each frond consists of a single layer of columnar epithelium covering a core of capillaries and a few fibroblasts. The empty part of the picture would be the gallbladder lumen, and on the opposite side parts of two muscle bundles can be seen.

Courtesy Barbara Banner MD 11906.8s

Ciliated Columnar Epithelium

The diagram typifies the histological appearance of the endometrium which follows the basic 3 component pattern of tubular systems in the body; mucosa – ciliated columnar cells, basement membrane (blue) and submucosa (orange) muscularis – (pink) and serosa (cream).

Simple Tubular Gland Lined by a Ciliated Columnar Epithelium

The higher power diagram reveals the cytological appearance of the simple tubular gland of the endometrial lining of the uterus showing the ciliated columnar cells resting on the basement membrane (deep blue) which in turn are embedded in a stroma (pink)

Tubuloalveolar Glands lined by a SingleLlayer of Cuboidal or Columnar Cells

Prostate

The diagram reflects the histological makeup of the prostate characterised by tubuloalveolar glands reflecting their shape combining a tubular shape with a rounded shape to result in a tear drop shape. The epithelium of the glands or acini has irregular contours, and the gland is lined by a single layer of cuboidal or columnar cells. Characteristic also is the accumulation of concretions in the lumen called corpora amylacea which become calcified as the patient ages. These are shown as pink homogeneous concretions organized in layers (lamellated) in the lumen of the gland.

Thyroid Gland

The histological section at 40X magnification using H&E stain shows follicles lined by tall columnar cells with scalloping of the colloid at the edges of the follicle and lymphoid infiltrate in the stroma

Image Courtesy Ashraf Khan MD. Department of Pathology, University of Massachusetts Medical School. 99400.8

Time to Live and Time to Die

Time Apoptosis and a Single Normal Cell

The image represents the life of a single set of columnar cells showing a progressioon of generations as the cell lives dies and is regenerated. The orange secretions of the cell are seen in the background of the pink cytoplasm and the purple nucleus. The nucleus of the newesest generation and cell is seen as a clock that has become distorted and time has become disordered. This process is abnormal and is a forerunner of a malignant process.

The Malignant Cell Lost Sense of Time

Malignant Cell – Not Knowing Time to Die

Columnar Cells in the Wrong Place – Adenocarcinoma

This specimen is from a biopsy of the liver. The medium power view of malignant adenocarcinoma shows groups of columnar cells arranged in rosettes in a bed aof malignant stromal tissue and surrounded by normal liver. Although the nuclii in this case are not particulalrly enlarged the cytoplasm is basophilic, and the appearance is of a “squatter” in the liver, ie tissue that does not belong, is consistent with metastatic adenocarcinoma malignant cancer liver hepatic adenocarcinoma histopathology

Quantification in Science and Biology

The equation of 1+1 =2 relates to accurate quantification and assigning a number with units to a structural unit or a particular function. The diagram represents some of the measurements we may make with lines, triangles, circles, angles, numbers, and rectangles. It depicts mathematical principles which may be applied to instrumentation that enable accurate measurement of biological structures. We define the elements of biology and medicine by consistent adjectives relating to size, shape, position, and character of the structure or its parts. How structures change with time is another dimension that enables the characterization of structure. The instruments of science and biology in essence either assist us to see structure better or measure these elements.