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Autor: Sinaoife Andrews

Spermatic Cords

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In the male reproductive system, the testes are suspended by the spermatic cord. Within each spermatic cord are several structures. These include the testicular artery, testicular veins, lymphatics, the deferent duct and testicular nerves.  The testicular arteries arise from the abdominal aorta and descend into the testes. They supply the ureters, testes, and epididymis.   The […]Beitrag lesen

Spermatogenesis 

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Spermatogenesis is the process whereby spermatozoa are formed. Spermatogenesis has two stages: spermatocytogenesis and spermiogenesis.  Spermatocytogenesis is the first stage of spermatogenesis, whereby spermatogonia develop into spermatocytes and eventually spermatids. Spermatogonia are the germ cells of spermatozoa. Type A dark (Ad) spermatogonia undergo mitotic division at irregular intervals giving rise to either a pair of […]Beitrag lesen

Deep Dive into the Smooth Muscle Tissue 

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Smooth muscle is one of the three types of muscle found in the body; cardiac and skeletal muscle being the other two. Smooth muscle is an involuntary muscle, meaning it is not under conscious control. It is found almost everywhere in the body. For example, it can be found in the gastrointestinal tract, respiratory tract […]Beitrag lesen

Deep Dive into the Small Intestine

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The small intestine is a key part of the digestive system. Spanning 6-7m within the abdominal cavity, the small intestine has roles in digestion and absorption.   The small intestine is divided into three parts: the duodenum, the jejunum and the ileum. The first part, the duodenum, is the shortest section. It is about 25-30cm long. […]Beitrag lesen

How the Urinary System Functions

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The urinary system is important in maintaining homeostasis of the body. For example, the urinary system regulates levels of fluids and electrolytes within the body.  The urinary system consists of the kidneys, ureters, bladder and urethra. The kidney is composed of three layers: the capsule, the renal cortex and the renal medulla. The renal medulla […]Beitrag lesen

World Malaria Day

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The 25th of April marks World Malaria Day. Malaria is a disease contracted from mosquito bites. Specifically, from mosquitoes that are infected with a parasite from the genus plasmodium.   (1) When an infected mosquito bites your skin, it can transfer the parasite to you. (2) These parasites travel to the liver where they mature. The […]Beitrag lesen

Skeletal Muscle Microanatomy

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Skeletal muscle is one of the three main types of muscle found in the body; cardiac and smooth muscle being the other two. Skeletal muscles are under voluntary control and are responsible for moving our bodies. Let’s explore the anatomy of skeletal muscle starting with one of the smallest units, the myofibril. Myofibrils are contractile […]Beitrag lesen

Brain Injury Awareness Month

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March marks Brain Injury Awareness Month. Let’s explore one of the more common types of brain injury, a concussion. A concussion is classified as a mild traumatic brain injury. A concussion may be caused by a large impact or trauma to the head. Concussions can also be caused by rapid acceleration and deceleration of the […]Beitrag lesen

Glaucoma Awareness Month

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January marks Glaucoma Awareness Month. Glaucoma is a condition that affects the eyes. It can be caused by a number of factors. The most common cause is the build-up of fluid in the anterior chamber of the eye due to the fluid not being able to properly drain. This in turn can lead to increased […]Beitrag lesen

‘Tis the season…for rhinitis

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At this time of year, there are different seasonal worries. In the southern hemisphere, where it is summer, rhinitis can be more prevalent. While in the northern hemisphere, where it is winter, the flu is more widespread.  Rhinitis is inflammation and swelling of the nasal passageway. This is caused by a trigger or allergen that […]Beitrag lesen