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Kit Ng, Ph.D.

Anatomy & Physiology Professor

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Month: August 2016

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Osteon Model

August 31, 2016September 16, 2016 Kit Ng

Models used to demonstrate the osteon/Haversian system in bone tissue.  Annotated version here. Continue reading Osteon Model

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Long bone, l.s.

August 29, 2016September 16, 2016 Kit Ng

Longitudinal section of long bone (femur) showing the compact bone and spongy (cancellous) bone.  Notice the trabeculae of spongy bone aligning along stress lines.  Annotated version here. Another specimen of long bone, l.s. showing the same compact bone and spongy … Continue reading Long bone, l.s.

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Bed Desk as Portable Lectern

August 29, 2016 Kit Ng

When I was using mostly my laptop to teach, I didn’t realize this as much.  Now that I am using a tablet to teach, I realize that the lectern is often missing from classrooms.  I have used everything from a … Continue reading Bed Desk as Portable Lectern

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Hyaline Cartilage

August 23, 2016 Kit Ng

Hyaline means “glass-like” or “transparent” because of how it looks under the microscope.  It is the most common cartilage and can be found in locations such as trachea, articular surfaces of bones, larynx and nasal septum.  Even though it’s called … Continue reading Hyaline Cartilage

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Gastro-esophageal junction

August 21, 2016September 16, 2016 Kit Ng

The connection between the lower esophagus and the stomach cardia is known as the gastro-esophageal junction or esophagogastric junction.  Histologically this is the transition between the stratified squamous epithelium from the esophagus to the simple columnar epithelium of the stomach. Continue reading Gastro-esophageal junction

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Arrector pili

August 21, 2016September 16, 2016 Kit Ng

Arrector pili is a small, involuntary muscle composed of smooth muscle cell.  It attaches to the hair bulb of the hair follicle and act to pull the hair up during cold or emotional distress, forming the “goose bump” on skin … Continue reading Arrector pili

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Fibrocartilage

August 21, 2016August 29, 2016 Kit Ng

Fibrocartilage is similar to hyaline cartilage but with the addition of thick and dense collagen fibers that are deposited in the extracellular matrix.  It can be found in locations where shock absorption is needed such as intervertebral discs and symphyses … Continue reading Fibrocartilage

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Elastic Cartilage

August 21, 2016 Kit Ng

Elastic cartilage is similar to cartilage but with the additional elasticity due to the elastic fibers that are deposited in the extracellular matrix.  It can be found in the external ear, external auditory canal, epiglottis and part of the laryngeal … Continue reading Elastic Cartilage

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Bone

August 20, 2016October 1, 2018 Kit Ng

Bone tissues support and allow body movements.  It provides mineral storage of calcium and phosphate, and bone marrow assists in the production of blood cells.  It is a tissue composed of cells and the ground substance is mineralized extracellular matrix … Continue reading Bone

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Current Microscope Setup

August 20, 2016September 10, 2016 Kit Ng

(Last updated: 9/09/2016) One of my joys is to tinker with my microscope and to take pictures with it.  My current microscope has slowly been upgraded since I combined it from two scopes I bought from UC Davis Bargain Barn … Continue reading Current Microscope Setup

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