Cells are the structural and functional units of all living organisms; each specialised to perform dedicated duties throughout their life span. All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells. These two groups are the prokaryotes and the eukaryotes. A Prokaryote cell is the first form of cells for many millions of years until the eukaryote cell evolved from the prokaryote cell‚ which created life. Prokaryote cells are organisms made
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Muscles are responsible for all conscious and unconscious movement. It is how we move and react to an environment. There are three types of muscles in the body include the skeletal muscle‚ smooth muscle‚ and the cardiac muscle. Whether you are running‚ walking‚ breathing‚ eating‚ sleeping‚ or typing it all involves some sort of muscle action. Muscle cells that shape‚ form‚ and outline the whole human skeleton is called a muscle fibers. There are two types of muscle fibers: Type I (slow-twitching
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also cause the adrenal gland to _________ epinephrine and norepinephrine. 3. Neurons can excite or inhibit another neuron. Exciting another neuron will increase the chances of a/an ___________________ in the second neuron. Inhibiting another neuron will make the chances of a/an __________________ less likely. 4. Axons from one neuron can synapse with the dendrites or soma of another axon. These synapses are called ______________________ (on dendrites) and _________________________
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emotional impact this illness. One out of every two families in the United States has a loved one who suffers with AD. Alzheimer’s disease begins an average age of 30 years before the first symptoms. The accumulation of beta amyloid plaques in between nerve cells; Amyloid are protein fragments that our body produce normally and Beta amyloid are protein fragment
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Report 2 -Karthik raj Konnaiyan Patellar reflex: Patellar reflex is contributed by 3rd and 4th Lumbar segment nerves‚ in some cases 2nd lumbar segment is also involved. So an individual will be left with patellar reflex if these lumbar vertebrae are left intact. Patellar reflex is also called knee-jerk reflex as the names implies‚ it is involved with tapping of knee at certain point will cause a jerk movement. In medical terms when an individual is tapped on patellar tendon (area below the knee
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neurons when considering changes in membrane potential? (3 points) 2. What is the resting membrane potential? (3 points) 3. What does it mean that the voltage just inside the membrane is negative? (4 points) Neurophysiology of Nerve Impulses Activity 2: Receptor Potential (20 points total) Notes: • After reading the Overview and Introduction‚ Click on Experiment. • Follow the directions on the left side of the menu to complete the lab. Use the data chart to answer the following
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BP increases. If a stimulus causes BP (controlled condition) to rise‚ the following sequence of events occurs (Figure 1-3). The higher pressure is detected by baroreceptors‚ pressure-sensitive nerve cells located in the walls of certain blood vessels (the receptors). The baroreceptors send nerve impulses (input) to the brain (control center)‚
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CNS. Its main job is to get the information from the body and send out instructions. The peripheral nervous system is made up of all of the nerves and the wiring. This system sends the messages from the brain to the rest of the body. -The peripheral nervous system consists of the nerves that lie outside the brain and the spinal cord. These nerves carry impulses like sensations and information from the body to the spinal cord and from the spinal cord to the body. Thus‚ the peripheral nervous system
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called conductive.Conductive hearing loss may be temporary or permanent. It can be caused by something as simple as a buildup of earwax or an ear infection. Sensorineural Problems ahead of this point lead to sensorineural hearing loss‚ also known as nerve deafness. Normally‚ the vibrations from the middle ear create waves in the fluid inside the cochlea. The waves in turn stimulate thousands of delicate hair cells that line the
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contains the peripheral nerve fibers that deliver sensory information to the CNS and motor nerve fibers that go to the skeletal muscle. The central nervous system sends messages from the brain to the rest of the body. (Divisions of The‚ 2015) The nervous system relays messages back and forth from the brain to different parts of the body. Information travels from the brain to lower extremities though the spinal cord. Signals from your brain are sent down the different nerves in
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