chapter 24 neurological

Question 1

Central nervous system

Answer 1

consist of the brain and spinal cord

Question 2

Peripheral nervous system

Answer 2

cranial nerves and the spinal nerves

Question 3

what is the nervous system responsible for?

Answer 3

control of cognitive function voluntary and involuntary actions.

Question 4

what is the basic cell of the nervous system?

Answer 4

neuron. it is highly specialized that sends impulses throughout the body.

Question 5

myelin sheath

Answer 5

(white matter)white, fatty that helps protect the neuron while increasing delivery of a nerve impulse.

Question 6

Brain

Answer 6

is the largest portion of the central nervous system. it is covered and protected by the meninges, the cerebrospinal fluid, and the bony structure of the skull.

Question 7

Meninges

Answer 7

three connective tissue membranes that cover, protect and nourish the central nervous system.
it also help also helps the nourish the central nervous system

Question 8

what are primary function of the cerebrospinal fluid

Answer 8

to cushion the brain and prevent injury to the brain tissue.

Question 9

what is the brain made up of?`

Answer 9

cerebrum, diencephalon, cerebellum, and brain stem.

Question 10

Cerebrum

Answer 10

is the largest portion of the brain.

Question 11

what is the outermost layer of the cerebrum

Answer 11

cerebral cortex. it is composed of gray matter.

Question 12

cerebral cortex

Answer 12

responsible for all conscious behavior. it enables the individual to perceive, remember, communicate, and initiative voluntary movements.

Question 13

what are the lobes of the cerebrum

Answer 13

frontal, parietal, occipital, and temporal.

Question 14

Frontal lobe of the cerebrum

Answer 14

helps control voluntary skeletal movement, speech, emotions, and intellectual activities.
however the prefrontal cortex of the frontal lobe, controls intellect, complex, learning abilities, judgment, reasoning, concern for others, and creation of abstract ideas.

Question 15

the parietal lobe of the cerebrum

Answer 15

is responsible for conscious awareness of sensation and somatosensory stimuli, to include temperature, pain, shapes, and two-point discrimination- for example :

the ability to sense a round versus square object placed in the hand or hot vs cold materials

Question 16

occipital lobe

Answer 16

is the visual cortex, receives stimuli from the retina and interprets the visual stimuli in relation to past experiences.

Question 17

temporal lobe

Answer 17

responsible for interpreting auditory stimuli. impulses from the cochlea are transmitted to the temporal lobe and are interpreted regarding pitch, rhythm, loudness and perception of what the individual hears.

the olfactory cortex is also in the temporal lobe and transmits impulses related to smell.

Question 18

Diencephalon.

Answer 18

composed of thalamus, hypothalamus, and epithalamus.

Question 19

Thalamus

Answer 19

the gateway to the cerebral cortex.