Brain
Involved in movement and in planning & coordinating behavior
What is the frontal lobe?
31 pairs attach to the cord by paired roots
What are spinal nerves?
Is the major motor and sensory nerve of the diaphragm.
What is the phrenic nerve?
Fiber which carries impulses away from the cell body.
What is the axon?
Are always the same strength along a given neuron and they are self-propagation.
What are impulses?
The three coverings around the brain & spine and help cushion, protect, and nourish the brain and spinal cord.
What are meninges?
The four major plexuses
What are the cervical plexus, brachial plexus, lumbar plexus, and sacral plexus?
Innervates the deltoid and teres minor.
What are axillary nerves?
The dense lipid layer which insulates the axon (makes the axon look gray).
What is myelin sheath?
Small gap or space between the axon of one neuron and the dendrite of another.
What is a synapse?
A group of brain structures that help regulate the expression of emotions and emotional memory.
What is the limbic system?
Is an area of skin that's supplied by a single spinal nerve.
What is a dermatome?
Branches to most of the flexor muscles of forearm.
What are the median nerves?
Receive stimulus and carries it impulses toward the cell body.
What is dendrite?
What are the four types of brainwaves?
Beta, Alpha, Theta, Delta
Are rhythmic fluctuation of electric potential between parts of the brain as seen on an electroencephalogram (EEG).
What are brainwaves?
Most branches are cutaneous nerves of the neck, ear, back of head, and shoulders
What is the cervical plexus?
Innervates essentially all extensor muscles.
What are radial nerves?
Gaps or nodes in the myelin sheath.
What are node of ranvier?
What are the three types of neurons?
Sensory neurons, Motor neurons, Interneurons
Is the largest portion of the brain
What is the cerebrum?
A population of neurons interconnected by synapses to carry out a specific function when activated.
What is a neural circut?
Sends fibers to the biceps brachii and brachialis.
Musculocutaneous
Nucleus and most of the cytoplasm.
What is the cell body - with the nucleus?
What are the 5 patterns of neural circuits?
Divergence, convergence, serial processing, parallel processing, reverberation