Nervous system
What are the 2 main parts of the nervous system?
CNS and PNS
What part of the eye contains no photoreceptor cells and doesn’t respond to light
Optic disc
what is responsible for restoring the ion concentration back to the resting potential that Moves Na+ and K+ against their concentration gradients using ATP
sodium potassium pump
What is the liquid produced by the ventricles and its function
Cerebrospinal fluid (CSF) floats and bathes the brain
Which gland is responsible for modulating sleep wake cycles
Pineal gland
What are the 3 stages of information processing?
Sensory input, integration, motor output
What separates the external ear from the middle ear and middle ear from inner ear
Tympanic membrane/Ear drum separates the external ear from the middle ear.
Round and oval windows separate the middle ear from the inner ear.
What is it called when the inside of the membrane becomes more + by the binding of ligand-gated ion channels?
depolarization
The third and fourth ventricle are connected via
Cerebral Aqueduct
What type of nerve function does the vestibulocochlear nerve have and its function
Sensory nerve function and function is hearing and balance
which part of the nervous system is referred to as the communication line
Peripheral nervous system (PNS)
what is the function of the mitral cells
help determine intensity of stimulus
When the cell cannot have another action potential this period is called what?
Refractory period
What are the 3 components to the brain stem?
Midbrain, Pons and Medulla oblongata
The small bumps on the tongue are called
Papillae
where nucleus and other organelles are located is called
Cell body or Soma
The receptors that respond to extreme mechanical, chemical, and thermal stimuli are called
Pain receptors or nociceptors
What are the 3 main types of neurons in a reflex arc?
Sensory, inter, and motor
The white matter of the cerebellum is called?
Arbor Vitae
umami taste sensation is located in the _____ of the tongue and is triggered by _____
located in the center/middle and triggered by amino acids
Site of action potential is referred to as?
Nodes of Ranvier
The point where two distinct point in the body feels like one point is referred to as?
Two-point threshold
What are the 2 main types of reflexes? which of the two types is naturally occurring with no interneuron
Stretch and withdrawal, stretch is naturally occurring with no interneuron
What does the corpus callosum do?
Connects two cerebral hemispheres and communicates between the 2
What is cranial nerve I and its function?
Olfactory, function is smell