the bushy, branching extensions of a neuron that receive messages and conduct impulses toward the cell body
largest part of a typical neuron; contains the nucleus and much of the cytoplasm
long nerve fiber that conducts away from the cell body of the neuron
a part of the cell containing DNA and RNA and responsible for growth and reproduction
The endpoint of a neuron where neurotransmitters are stored
the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
dendrite --> axon terminals
direction of impulse
transmits nerve impulses across a synapse
senses chemical changes
senses light changes
ear stone in the semicircular canal
organ of corti
organ located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
Spine and brain
nerves not in the spine and brain
sends impulses down the appendage
transmits impulses to cns
neural path of reflex
impulse that travels down a nerve
sense movement and black and white
contains rods and cones
responsible for movement, balance, coordination
responsible for touch, pressure, texture
responsible for vision/reading
responsible for involuntary body functions
responsible for planning/organization
responsible for sounds, smell
between parietal and temporal lobes
between frontal and parietal lobes
responsible for memory
responsible for personality, behavior, and emotion
responsible for sensing size and shape
breathing, heart rate, digestion
three things the brain stem controls
in the front of the eye
in the middle of the eye
what the vitreous humor keeps the eye from doing
transparent outer layer
rigid white of eye
dilates and constricts eye
opening in eye
what creates the blind spot
b/w retina and sclera
responsible for equilibrium
sends sounds to brain
contains organ of corti
between semicircular canals and cochlea
responsible for maintaining healthy air pressure in ear
What receptors are in the ear?
Where do you feel the most pain on your body?
When chemicals dissolve in you saliva what is stimulated?
What nerve is responsible for equilibrium?
When light enters your eye what does it first enter?
What is a response to a sudden, involuntary response to stimuli?
both. because the main message is electrical but when the electrical message hits the synapse the chemical, neurotransmitter, helps the message jump from the junction.
Are messages being sent from neuron to neuron chemical or electrical?
What other part of the Nervous System is there beside brain and spinal cord?
Sound wave are caught by the pinna, which then enter the auditory canal, then hit tympanic membrane "eardrum", which vibrate the malleus, incus, stapes (in that order), which vibrate the cochlea, vibrating the organ of corti (which is inside the cochlea) and inside the the organ of corti are hair cells which each vibrate separately and then the message gets sent up the auditory nerve to the brain so we can hear!
How do we hear?
What helps messages get sent from synapse to synapse?