histology. 2. Name and briefly describe the four basic types of tissue. 3. Name the three subtypes of simple epithelial tissue. 4. List the five main subtypes of connective tissue. 5. Name the three subtypes of muscle tissue. 6. Name the two types of nerve tissue. 68 Section 6 Types of Tissue HISTOLOGY Histology is the microscopic study of cells‚ tissues‚ and organs. Also called microscope anatomy‚ histology has two basic classes: 1) normal histology— the study of normal tissues‚ and 2) pathologic
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sympathetic division has thoracolumbar “outflow”‚ meaning that the neurons begin at the thoracic and lumbar (T1-L2) portions of the spinal cord. The parasympathetic division has craniosacral “outflow”‚ meaning that the neurons begin at the cranial nerves (CN 3‚ CN7‚ CN 9‚ CN10) and sacral (S2-S4) spinal cord. The ANS is unique in that it requires a sequential two-neuron efferent pathway; the preganglionic neuron must first synapse onto a postganglionic neuron before innervating the target organ. The
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wrist and hand. The carpal tunnel houses one nerve‚ the median nerve‚ which becomes compressed and causes carpal tunnel syndrome. The median nerve controls sensation and small muscles in the thumb‚ index finger‚ and middle finger. Carpal tunnel syndrome is a medical condition in which the median nerve is compressed at the wrist. [5] This stress on the nerve leads to pain‚ numbness‚ and muscle weakness in the forearm and all fingers in which the median nerve plays a part. Symptoms start gradually and
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Reticular theory ( the nervous system consisted of a large network of fused nerve cells) * Neuron theory ( the nervous system consisted of distinct elements or cells * Discovery of staining led to the acceptance of neuron theory. Staining is a chemical technique that caused nerve cells to become colored so they stood out from surrounding tissue * A way of electricity is transmitted in groups of neurons‚ such as the optic nerve. Basic Structure of the brain * Cerebral cortex- A 2mm thick layer
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the lateral prolongation of the linea aspera to within 5 cm. of the lateral condyle; and from the lateral intermuscular septum. The fibers of the long head form a fusiform belly‚ which passes obliquely downward and lateralward across the sciatic nerve to end in an aponeurosis which covers the posterior surface of the muscle‚ and receives the fibers of the short head; this aponeurosis becomes gradually contracted into a tendon‚ which is inserted into the lateral side of the head of the fibula‚ and
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where the protagonist tries to fix the neurology nerve system to heal his father’s Alzheimer. #2 Ask Question What causes Alzheimer’s disease neurologically? #3 Create possible explanation I think the core reason of the Alzheimer’s disease lie on the nerve pathway signal transmission. I think the nerve pathway signal transmission system is same as all of the body functional system and as it grows older and older‚ the functioning of the specific nerve pathway signal transmission for memories weakens
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Chapter 14 Vocabulary: The Autonomic Nervous System 1. Autonomic Nervous System - Consists of motor neurons that innervate smooth and cardiac muscle‚ and glands; make adjustments to ensure optimal support for body activities; operate via subconscious control; also called the involuntary nervous system or general visceral motor system. 2. Preganglionic Neuron – First neuron that resides in the brain or spinal cord. 3. Preganglionic Axon – Synapses with the second motor neuron; thin
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A hard knock in the leg to the area behind the knee would certainly be painful. This area is called the popliteal fossa. The nerves most important nerve traveling through this area is the popliteal nerve that travels to the lower leg and foot and allowing both sensation and motor strength. Injury to the popliteal nerve can cause numbness‚ tingling‚ pain‚ and weakness in the lower leg‚ ankle and foot. Vascular injury could cause a bleed from either popliteal artery or vein causing a hematoma or blood
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Pain management comparison in orthopaedics- patient controlled analgesia vs. femoral nerve blocks Picot question In adult patients with total hip or knee replacements‚ how effective is patient controlled analgesia pain management compared to femoral nerve block in controlling post operative pain within the first 24 hours after surgery? Importance to the science of nursing Major knee or total hip surgery is associated with severe postoperative pain
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skin has three layers—the epidermis‚ dermis‚ and fat layer (also called the subcutaneous layer). Each layer performs specific tasks. | | | | Getting Under the Skin | | The skin has three layers. Beneath the surface of the skin are nerves‚ nerve endings‚ glands‚ hair follicles‚ and blood vessels. | | Epidermis: The epidermis is the relatively thin‚ tough‚ outer layer of the skin. Most of the cells in the epidermis are keratinocytes. They originate from cells in the deepest layer of
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