Spinal cord

1. The Jendrassik maneuver played a major role on the patellar reflex. One of the prevailing hypotheses has to deal with the alpha-gamma co-activation theory. It states that the alpha motor neurons activates the motor tone, which leads to the spindles providing feedback to the brain. This process is done by the gamma motor neurons, who are in charge of controlling the stimulation of the cerebellum. Also, both the alpha and gamma motor neurons meet at the same effector muscles. Furthermore, when…

Walking is assisted by the brain, spinal cord, muscles, reflexes and receptors. The act of walking begins from brain and spinal cord which is the planning on how to walk. More precisely, it starts from the cerebral cortex. Cerebral cortex is the region of decision-making and it initiates voluntary response, in this case, the act of walking. Basal ganglia are also responsible for voluntary locomotion. It requires the knowledge of the body’s position in space (where am I walking to) and what…

casualty experiencing head/ spinal injuries would be best to: Identify head and spinal injury/possibilities • Unconsciousness - This occurs if the casualty is not responding to Aid being performed • Disorientation - Is caused when the casualty is unaware or unable to understand or respond clearly • Loss of feeling - This may occur if the spinal cord has been damaged. This may result in short or long term damage to the casualty • Loss of control of limbs - Due to brain or spinal damage the…

slurred speech or trouble projecting her voice, loss of motor skills in hands and arms, tripping and falling, dropping objects, and impaired use of limbs. Lou Gehrig’s Disease is characterized by the continuous progression of the breakdown of the spinal cord and the motor nerve cells in the brain. When the body’s motor neurons all discontinue sending pulses to the muscles, atrophy occurs (which is when your muscles are wasting away because of no use). This all causes major muscle weakness.…

studying this illness for years now and have come to the conclusion that it is indeed head trauma that causes the symptomatic results of ALS. Through the use of the Tau Protein that is found after repeated blows to the head, and when leaked to the spinal cord will cause Amyotrophic Lateral Sclerosis along with Chronic Traumatic Encephalopathy (CTE). The CTE is similar to ALS in the ways…

the past, Walking or locomotion has been thought to be controlled by only the brain, and the spinal cord was merely a connector between the brain and the motor structure. The brain does control the voluntary muscle movement, but it works in conjunction with the spinal cord. It is now accepted that the motor patterns and rhythms governing locomotion in mammals are controlled by an area of the spinal cord known as the Central Pattern Generator (CPG) (Kiehn, 2006). The neural circuits in the CPG…

more commonly referred to as Lou Gehrig’s disease after Lou Gehrig, a great American baseball player whose career unfortunately ended abruptly due to this incurable degenerative disease. ALS is the deterioration of motor neurons in the brain and spinal cord that leads to muscle weakness. This significant decrease in muscle strength eventually becomes paralysis, and the majority of those with this awful disease die from respiratory failure. This is the most common neuromuscular disease and…

One of the major channels of the spinal cord is the spinothalamic tract; a sensory pathway. It conveys nerve impulses for sensing pain, warmth, coolness, itching, tickling, deep pressure, and crude touch. (Tortora, 2014-01-22, p. 461). Based on that description and as the name implies, information will travel from the region of stimulation on the skin to the CNS, ultimately landing at its destination at the thalamus; thus, making it an ascending pathway. This pathway is further divided into…

control. Motor neurons are responsible for movement and to cause movement need to receive electrochemical messages from the brain and spinal cord(the central nervous system). When the brain sends a message to the rest of your body telling it how to move, the message first starts in the brain. These neurons in the brain, called upper neurons, then send the message to the spinal cord’s lower neurons to be sent out to the motor neurons in the rest of the body. In patients with ALS, both of the…

5 Spinal Bifida 1. Definition: • A birth defect that affects the neural tube. • The neural tube is the embryonic structure that ends up developing into the brain, spinal cord, and the tissue that surrounds and encloses them. In babies diagnosed with spinal bifida, the neural tube does not form correctly and is left open, causing defects. 2. What are the causes/risk factors: • Experts have not figured out what the exact cause of this disorder. Most think that the link is genetic or…