Muscle memory
Largest muscle of the body
Gluteus maximus
Which organ uses the most energy
The brain
Are the cranial nerves central or peripheral nervous system?
Peripheral
Long things where signal is passed in nerves.
Axon
Signal from a nerve is known as a ....
synapse
Orbicularis oris
Which has more nerves? The spinal cord or peripheral nervous system.
Peripheral nervous system at 15 billion
How many nerves come directly from the brain?
12 pairs or 24
Sensory neurons bring signals to the CNS. They are called?
Afferent
Where a nerve signal starts
Axon Hillock
Muscle on side of head.
Temporalis
Why would the density of the brain change if there is no mitosis?
Connections are being made.
These parts of a nerve cell receive signal
Dendrites
Voluntary neurons are known as...
Somatic
Make myelin sheath in PNS
Schwann cells
Antagonist of the biceps brachii
Triceps
Males have more of what brain tissue?
Grey matter
how many pairs of nerves come directly from the spinal cord?
31
Fight or flight mode
Sympathetic
Interruptions of the myelin sheath
Nodes of Ranvier
Fastest nerves
Alpha motor nerves of the spinal cord. 268mph
neuron cell bodies are called?
ganglia
Bodies rest response...
Parasympathetic
These cells make the blood brain barrier
Astrocytes