reflex arc Flashcards
1
Q
neurons that form the reflex arc
A
sensory neurons, interneurons, motor neurons
2
Q
what is a reflex arc?
A
neural pathways that reflexes occur over
3
Q
sensory receptor
A
reacts to stimuli
4
Q
effector organ
A
muscle or gland that reacts
5
Q
Interneurons
A
- recieve signal
- send to CNS
- relay to motor
6
Q
Motor
A
carry nerve impulses from the brain or spinal cord to muscles and glands to carry out a specific task
7
Q
Neurons
A
- cells that pass electrical and chemical signals along pathways in the bran and body
- when neurons are signaled by the brain, they send action potentials to message other cells, continue transmitting a signal, or release neurotransmitters
- info from one neuron flows to another neuron across a small gap called a synapse
8
Q
Synapse
A
At the synapse, electrical signals called action potentials are translated into chemical signals called neurotransmitters that cross the gap
9
Q
Path of Action Potential
A
Dendrites –> Cell Body –> Axon –> Axon Terminal
10
Q
Dendrites
A
- recieve stimulus and then send an electrical signal towards the cell body
11
Q
Axon
A
- part of the neuron that moves an electrical signal from the cell body to the end of the neuron, the axon terminal
- there, it communicates w/ other neurons, muscles, or glands
12
Q
Axon Terminal
A
- part of th eneuron where neurotransmitters are released into the empty space between neurons (synapse)
- These chemicals send the impulse to the next neuron, muscle, or gland
13
Q
Path of Action Potential Detailed
A
- Signal recieved at Dendrites
- Travels through the cell body
- Continues down the axon (moves quickly because of myelin sheath)
- Reaches the axon terminal & releases a neurotransmitter into the synapse
recieve and relay to multiple cells
14
Q
Neural Pathway
A
- stimulus
- Dendrite (skin)
- sensory neuron
- interneuron
- part of brain (hypothalamus)
- motor neuron
- receptor
- movement (result)
