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Sickle Cell Anemia

By: Administrator, Views: 11384

The clinical manifestations of sickle cell anemia result from pathologic changes to structures and systems throughout the body.

Coronary Heart Disease Animation

By: Administrator, Views: 11676

Arteriosclerotic heart disease occurs when arterial vessels are marked by thickening, hardening, and loss of elasticity in arterial walls. Course of cardiovascular disease accelerates due to: Reduced blood flow Rlevated blood lipids Defective endothelial repair

Shoulder Movement Animation

By: Administrator, Views: 697

Four muscles—the supraspinatus, infraspinatus, teres minor, and subscapularis—make up the rotator cuff. It stabilizes the shoulder and holds the head of the humerus into the glenoid cavity to maintain the principal shoulder joint.

Normal Heart Sounds

By: Administrator, Views: 418

An electrocardiogram (ECG, EKG) is a commonly used procedure in which the electrical events associated with the beating of the heart are evaluated. (A) Skin electrodes are applied to the chest wall, which send electrical signals to a computer that interprets the signals into graph form.

Elbow Flexion Animation

By: Administrator, Views: 584

Normal starting position for elbow flexion is with the subject supine with the shoulder positioned in 0 degrees of flexion, extension and abduction with the arm close to the side of the body

The Nerve Impulse

By: Administrator, Views: 13427

The action potential explained.

Smoking Cessation

By: Administrator, Views: 11237

Smoking cessation (also known as quitting smoking or simply quitting) is the process of discontinuing tobacco smoking. Tobacco smoke contains nicotine, which is addictive and can cause dependence. Nicotine withdrawal makes the process of quitting often difficult. Seventy percent of smokers wou...

The Lac Operon in E. Coli

By: Administrator, Views: 12460

The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria. Although glucose is the preferred carbon source for most bacteria, the lac operon allows for the effective digestion of lactose when glucose is no...

Embryonic development - Week 4

By: HWC, Views: 8590

• The flat trilaminar embryonic disc undergoes embryonic folding to form a three-dimensional cylinder shaped embryo. • Most organ systems continue, or start, to develop (organogenesis): • The nervous system and chorion continue to develop. • The heart and the rest of the cardiovas...