Nervous system (S2-M)

Question 1

In estimation: how many neurons are there in the CNS?

Answer 1

More than 100 billion

Question 2

There are synapses at the cell body.

This statement is true or false?

Answer 2

True

Question 3

This part of the neuron exits singularly and may divide to many separate branches

Answer 3

Axon

Question 4

A special feature of synapses is that it can pass forward and backward.

This statement is true or false?

Answer 4

False

Question 5

Name 3 examples of receptors

Answer 5

Visual receptors
Auditory receptors
Tactile receptors
Etc.

Question 6

The information from somatic sensory receptors enters the CNS through what structure?

Answer 6

Peripheral nerves

Question 7

From the peripheral nerves, where is the input conducted to?

Answer 7

All levels of spinal cord
Reticular substance of the brain stem
Mesencephalon
Cerebellum
Thalamus
Cerebral cortex

Question 8

What are the motor functions of the nervous system?

Answer 8

Contraction of skeletal and smooth muscles,

Secretion by exocrine and endocrine glands

Question 9

What are musles and glands to the nervous system?

Answer 9

Effectors

Question 10

Skeletal muscles can be controlled by what parts of the nervous system?

Answer 10

The spinal cord
Brain stem (reticular substance)
Basal ganglia
Cerebellum
and Motor cortex

Question 11

Automatic/instantaneous muscle responses are regulated by what region of the CNS

Answer 11

Lower regions

Question 12

Deliberate, complex muscle movements controlled by thought processes are controlled by which region of the CNS

Answer 12

Higher regions

Question 13

Most storage of information for future control of motor activities is located where?

Answer 13

Cerebral cortex

Question 14

The process where synapses become more capable of transmitting the same type of signal

Answer 14

Facilitation