Nervous system
This consits of all the nervous tissue outside of the central nervous system?
All living cells have a ______ plasma membrane
What is polarized?
what is dura matter, arachnoid, pia matter?
This leaves the axon terminal and attaches to neurotransmitter receptor
what is a neurotransmitter lol
Specific neurotransmitter for skeletal muscle
What is acetylcholine?
This brings all sensory information TO the CNS from receptors in body tissues and organs
What is the afferent division of the PNS?
What is a resting membrane potential?
These contain axons of the CNS ~motor~ neurons that controls muscles and glands
What are ventral roots?
These are separated by the synaptic cleft
What are the presynaptic neuron and post synaptic neuron?
Contains major centers that regulate autonomic function, such as HR, BP, respiration, digestive activities
Medulla oblongata
The somatic nervous system does this
What is voluntary skeletal muscle contractions?
The period in which the membrane cannot respond normally to further stimulation. This lasts until repolarization is complete.
What is a refractory period?
These carry sensory info toward the brain
Action potential taking baby steps along a unmyelinated axon
Part of the brain divided into multiple parts
Cerebrum
This part of the neuron receives incoming signals
What is a dendrite?
When the number of positively charged ions on the inner surface of the plasma membrane increase, the membrane potential shifts toward 0mV
What is depolarization?
The 6 major regions of the brain are
What is the cerebrum, diencephalon, midbrain, pons, medulla oblongata, cerebellum.
What is muscle tone?
Spinal cord consists of ____ segements
Large and most numerous neuroglial cells - maintain the blood brain barrier that isolates CNS from body's general circulation
What is astrocytes?
A propagated change in membrane potential of excitable cells (skeletal muscles fibers, cardiac muscle cells, axons of neurons)
Connects to the pituitary gland, is involved with emotions, autonomic function and horomone production
What is the hypothalamus?
Allyson has a dog named
Who is Noodle?
This is highly vascular and extensive blood supply - extremely important for brain