nervous, endocrine system and synaptic transmission

Question 1

what are the two functions of the nervous system

Answer 1

1. collect. process and respond to information
2. co-ordinate with working organs and cells

Question 2

what are the two parts of nervous system

Answer 2

brain and spinal cord

Question 3

what are the two parts of the Peripheral nervous system ?

Answer 3

somatic nervous system (sensory and motor information)

Automic nervous system (Governs vital organs)

Question 4

what is the endocrine system

Answer 4

in charge of creating and releasing hormones

Question 5

what is fight or flight ?

Answer 5

how animals respond, body becomes physiologically aroused in readiness to fight or in cases flee.

Question 6

what are neurons

Answer 6

building block for nervous system, process and transmits messages

Question 7

what are the three different types of neurons

Answer 7

Sensory neurons - carry messages from PNS to CNS (long dendrites and short axons)

Relay neurons - connects sensory neurons to motor or other relay neurons. (short dendrites and short axons)

Motor neurons - connect the
CNS to effectors such as muscles and glands. (short dendrites and long axons)

Question 8

what is synaptic transmission

Answer 8

process at synapses by a chemical signals is released from one neuron.

Question 9

what is chemical transmission

Answer 9

neurons communicate with others within groups known as neural networks.

Neurons are separated by synapses.

Question 10

what are Neurotransmitters

Answer 10

brain chemicals released from synaptic vesicles which relay signals from one neuron to another.

Question 11

what are Inhibitors

Answer 11

when neurotransmitters such as seritoin increase the negative charge of postsynaptic neurons.