CNS
This structure connects the two hemispheres and allows communication between them.
What is the corpus callosum?
This branch of the autonomic nervous system promotes “rest and digest.”
what is parasympathetic nervous system?
This layer of the eye contains rods and cones and is responsible for converting light into nerve signals.
What is retina?
This neurodegenerative disease involves loss of dopamine-producing neurons in the substantia nigra.
What is Parkinson's Disease?
This gland, located at the base of the brain, secretes hormones such as growth hormone, prolactin, and TSH
What is pituitary gland ?
This structure connects the brain and spinal cord and regulates essential functions like breathing and heart rate.
What is brainstem ?
This simple neural pathway allows a quick response to a stimulus, usually without needing the brain, using sensory neurons, interneurons, and motor neurons
what is Reflex arc?
These cells in the retina detect low light and help with night vision—but do not distinguish color.
What are rods ?
A disorder characterized by recurrent seizures due to abnormal electrical activity in the brain.
What is epilepsy ?
This class of hormones is derived from cholesterol and acts via nuclear receptors.
What are steroid hormones?
This chemical messenger is released from the presynaptic neuron into the synaptic cleft to transmit a signal to the postsynaptic neuron.
What is a neurotransmitter ?
Networks of intersecting spinal nerves that branch to limbs are called these
what are nerve plexus ?
Taste information from the tongue is carried by nerves such as the facial (VII), glossopharyngeal (IX), and this nerve to reach the brain.
What is the vagus nerve ?
This vision disorder results when the eye’s lens cannot focus light properly on the retina, often due to aging and reduced flexibility of the lens.
What is presbyopia ?
This structure in the brain acts as the ‘master regulator,’ controlling pituitary hormone release through releasing hormones
What is hypothalamus ?
In myelinated neurons, action potentials jump between these gaps in the myelin sheath, speeding up signal conduction
What are nodes of Ranvier ?
These structures house the cell bodies of sensory neurons and are commonly targeted by the varicella-zoster virus.
What are dorsal root ganglia ?
Visual signals from the left visual field of both eyes are processed in this part of the brain
What is the right occipital lobe (visual cortex)?
An autoimmune disease where the immune system attacks myelin sheaths in the central nervous system, leading to impaired nerve conduction.
This hormone increases blood calcium by stimulating bone breakdown and increasing calcium reabsorption in the kidneys.
What is parathyroid hormone ?
This stimulant activates acetylcholine receptors in the brain and increases dopamine, making you feel alert and sometimes ‘pleased.
What is nicotine ?
When you step on a sharp object, this type of neuron senses the pain, this relays the signal in the spinal cord, and this type moves your foot away.
what are sensory neurons, interneurons and motor neurons ?
A small depression in the retina of the eye where visual acuity is highest and retinal cones are particularly concentrated
What is a Fovea ?
A neurodegenerative disease marked by memory loss and cognitive decline due to buildup of plaques and tangles in the brain.
What is Alzheimer's Disease ?
When blood glucose rises after a meal, this organ acts as both an exocrine and endocrine gland to restore balance.
What is the pancreas?