Neurophysiology

A mild Chiari I malformation is typically congenital (present at birth) and caused by structural defects in the base of the skull and cerebellum. It is not usually caused by injury.

The vital body processes are regulated by the autonomic nervous system, which controls involuntary functions such as heart rate, digestion, and breathing. Hormones produced by various glands like the pituitary, thyroid, and adrenal glands also play a critical role in regulating these processes. Additionally, the body's internal feedback mechanisms help maintain homeostasis by constantly adjusting these processes to ensure stability.

Synapses play a critical role in determining reaction time by transmitting electrical or chemical signals between neurons. The efficiency of synaptic transmission can impact the speed at which signals travel through the nervous system, affecting overall reaction time. Stronger or more efficient synapses can lead to faster response times, while weak or impaired synapses may result in slower reaction times.

The main term is acute vestibular neuritis.

The two types of structures that carry out transmission functions are nerve fibers, which transmit electrical impulses in the nervous system, and axons, which are extensions of nerve cells that conduct electrical signals away from the cell body.

No, a synapse is a specialized junction between two neurons where communication occurs through the release of neurotransmitters. Each synapse allows for communication between one presynaptic neuron and one postsynaptic neuron.

No, technically the striatum is composed of the caudate, putamen, and nucleus accumbens. The lentiform nucleus is composed of putamen, globus pallidus

Currently, there are no reliable tests available to measure neurotransmitter levels in the brain. This is because neurotransmitters are typically found in too low of concentrations to be accurately detected through blood or urine tests. Additionally, diagnosing and treating bipolar disorder is typically based on a combination of symptoms reported by the patient, a thorough medical history, and observation by mental health professionals. Medications are prescribed based on the individual's specific symptoms and responses to previous treatments.

The lower extremities are most easily and readily affected. The foot drop from cerebral palsy and Parkinson's Disease, and the neuropathies from diabetes and alcoholism all affect the lower extremities before any other part of the body.

This finding indicates a small area in the right medulla that appears bright on T2-weighted imaging, but does not enhance with contrast. The significance of this finding is unclear and may not be clinically relevant without further evaluation or context. Additional imaging or clinical information may be needed to determine its potential importance.

Well smoking crack will make you do that and certain medical conditions will make your ams and legs twitch like that such as jackass syndrome, retardalitus. Hope you get the treatment soon it can become permanent.

An action potential is caused by an influx of sodium ions into the cell through voltage-gated sodium channels. This influx of sodium ions results in depolarization of the cell membrane, leading to the generation of an action potential.

True. The majority of the volume of living cells is composed of organic compounds such as proteins, lipids, carbohydrates, and nucleic acids. These molecules perform essential functions within the cell, including providing structure, regulating processes, and storing genetic information.

Hyperventilation can reduce intracranial pressure (ICP) by causing vasoconstriction of cerebral blood vessels, which decreases cerebral blood flow and thus decreases the volume of blood in the brain. However, prolonged hyperventilation should be avoided as it can lead to cerebral ischemia and harm the brain.

Ulnar neuritis is inflammation of the ulnar nerve, while ulnar neuropathy refers to damage or dysfunction of the ulnar nerve. Neuritis is usually reversible with treatment, while neuropathy may result in more permanent nerve damage. Symptoms of neuritis may include pain, tingling, and weakness, while neuropathy can cause more severe symptoms like muscle wasting and loss of sensation.

Motor neurons to skeletal muscles have cell bodies located in the ventral horn of the spinal cord. These cell bodies send signals through their axons to control muscle movement and are part of the somatic nervous system.

Inflammation of the intercostal bundle, which is the artery nerve and vein. It is a rare condition but can be treated with many alternative treatments such as acupuncture, acupressure, ice and chiropractic care.

Action potential reaches the action terminal of a nerve cell. This triggers calcium gated ion channels in the axon terminal to open, calcium rushes in. This causes vesicles filled with neurotransmitter to fuse to the membrane and dump the neurotransmitter into the synaptic cleft by exocytosis.

The largest portion of the primary motor and sensory cortex is devoted to the face and hands. This is because these areas have fine motor control and require greater sensory input for activities of daily living and interactions with the environment.

Microglial cells, the resident immune cells of the brain, play a key role in cleaning up extracellular debris and bacteria in the brain through a process called phagocytosis. This process involves engulfing and digesting the debris and pathogens to maintain brain health and function. However, the brain has more limited immune responses compared to the rest of the body.

In myelinated axons, the voltage gated sodium ions are located along the nodes of Ranvier, the exposed places between the myelin segments. The gates here, however, are not particularly more concentrated than on other un-myelinated axons.

TRUE

The pia mater is the innermost layer of the meninges, the protective membranes that surround the brain and spinal cord. It is a thin, delicate membrane that adheres closely to the surface of the brain and spinal cord, providing support and nourishment to these structures. Its name means "tender mother" in Latin.

Impulse propagation refers to the transmission of information or signals along a biological or artificial network, such as nerve cells in the human body or electronic circuits. In the context of nerve cells, it typically involves the propagation of action potentials along the axon of a neuron to transmit electrical signals. Impulse propagation plays a crucial role in communication and coordination within biological systems as well as in the functioning of electronic devices.

no but rarely they have som but they disappear after it effects the human spinal cord and the brain about and they could affect even higher to .so that is the conclusion of the of mabye the right answer