Unit 24: Vocabulary

To pass this unit, please study the 18 vocabulary words below.
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OD (oculus dexter)
the right eye
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The results of the eye test showed that the problem was with the oculus dexter.
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OS (oculus sinister)
the left eye
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The oculus sinister is usually the dominant eye in left-handed people.
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optic nerve
the nerve carrying visual information from the eye to the brain
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The patient was blinded after his optic nerve was severed in a car accident.
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organs
a self-contained part of the body responsible for a unique function
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There are five vital organs in the human body: the brain, heart, kidneys, liver and lungs.
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ovaries
female reproductive organs
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A woman's ovaries shrink over time, leading to decreased fertility.
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patella
the kneecap
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A splint was placed over the patella to immobilize it while it healed.
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pharynx
the cavity behind the nose and the mouth
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Getting food stuck in the pharynx can cause tissue irritation.
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platelet
a cell fragment found in blood that helps with clotting
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A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.
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pons
the area of the brain through which the two sides communicate
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The pons serves as a message station between several areas of the brain.
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posterior
related or connected to the back of the body
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The posterior of his legs were covered in an itchy rash.
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prostate gland
the gland which produces the fluid part of semen
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Men over the age of 45 should have their prostate gland checked for signs of cancer.
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RBC (red blood cells)
cells in the blood which carry oxygen
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Red blood cells, also called erythrocytes, are cells that circulate in the blood carrying oxygen around the body.
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saliva
watery liquid secreted by the mouth
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One of the effects of the medicine is a reduction in saliva production.
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spinal cord
the bundle of nerve fibre enclosed in the spine
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Damage to the spinal cord can lead to paralysis.
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sternum
breastbone
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Fractures of the sternum are usually a result of blunt force trauma.
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subcostal
below the ribs
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The subcostal arteries are the lowest pair of branches coming from from the thoracic aorta.
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subdural
below the external layer of the meninges
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A subdural hematoma is typically caused by severe head injury.
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submandibular
below the lower jaw
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Submandibular intubation is an effective means to avoid tracheostomy.
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