Herry tells her physician that she has been restless and irritable lately. Sherry has a hard time sleeping and complains of diarrhoea and shortness of breath. During the examination, her physician noticed a higher-than-normal heart rate and decreased circulating levels of cholesterol.
A kidney specimen is presented at medium power and intentionally presented in grey scale without colour to test your skill in critical observation of structure. Identify the tissue that lines the spaces (lumen of kidney tubules) that are indicated by blue triangles. They are all lined with the same type of fissue.
Intercalated discs desmosomes contract gap junctions. Cardiocytes are connected by structures called Intercalated discs. They include fascia adherents, actin and myosin filaments attached to plasma membranes, and weld-like structures called the cytoplasms between adjacent cells, which are connected and permit ions to pass from one cell to the next. The movement of ions between adjacent cells is exceptionally important as it allows all cardiocytes in a chamber wall to depolarize and subsequently simultaneously.
A 24 year old man is brought to the physician because of a 3 day hsitory of progressive numbness of both feet that now has ascended to the level of his thighs. In the last 24 hours, he has developed numbness and tingling of his hands. Physical examination shows an ataxic gait. Deep tendon reflexes are diminished in the upper extremities and absent at the knees and ankles. Sensation to vibration and joint position is abent in the fingertips and feet bilaterally. There is mild weakness of the distal upper extremities and moderate weakness of the lower extremities. A process involving which of the following structures is the most likley explanation for these sensory findings? 1. Dorsal spinocerebellar tract 2. Faciculus cuneatus 3. Faciculus gracilis 4. Myelinated primary afferents 5. Unmyelinated primary afferents 6. Ventral spinocerebellar tract
Janet is a department secretary at a university. She has noticed difficulty hearing faculty and students in her left ear over the last few months. She compensates by turning her right ear to people when they speak to her. In addition to this left ear hearing loss, Janet has begun to experience a ringing in her left ear and some dizziness. Janet was referred to an audiologist by her primary care physician, who diagnosed her with high-frequency sensorineural hearing loss. The audiologist referred Janet to a neurologist who ordered an MRI. The MRI revealed a brain tumor on the eighth cranial nerve.
Discuss the basic clotting mechanism. Differentiate between intrinsic and extrinsic mechanisms. Discuss how the factors generally work, you do not need to list all factors and the order in which they participate in clotting. Begin with how Prothrombinase is formed and then continue. You should list all 3 stages.
A 20-year-old female college student with a sore throat is seen in the student health service. A throat swab is cultured and reported positive for group A \ beta-hemolytic streptococci. She is treated with an intramuscular injection of penicillin. Two weeks later, she wakes up in the morning and finds that she has decreased urine volume, and her urine is dark red. She also has a fever and swelling in her feet. She returns to the student health service, where urine is collected for urinalysis. The following urinalysis results were obtained:
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