Nervous system 2

Question 1

TIA is not a type of…

Answer 1

stroke

Question 2

The brain is what proportion of body weight

Answer 2

1/50

Question 3

With cavity is the brain in

Answer 3

cranial

Question 4

Aproximately what amount of blood per min does the brain need

Answer 4

750ml

Question 5

What % of cardiac output does the brain recieve

Answer 5

15

Question 6

4 parts of the brain

Answer 6

cerebrum, diencephalon, brain steam, cerebellum

Question 7

What are the 2 parts of diencephalon

Answer 7

thalamus and hypothalamus

Question 8

3 parts of the brain stem

Answer 8

mid brain/ pons/ medulla oblongata

Question 9

the largest part of the brain

Answer 9

cerebrum

Question 10

how is the cerebrum divided

Answer 10

L/R hemisphere

Question 11

how is the cerebrum connected

Answer 11

white matter (nerve fibres) deep in brain

Question 12

The superficial layer (cerebral cortex) of the cerebrum is made of …

Answer 12

nerve cell bodies (grey matter)

Question 13

cerebral cortex has lots of … separated by …

Answer 13

folds (convolutions), fissures (greater surface area)

Question 14

How is the cerebrum divided other than hemispheres

Answer 14

lobes

Question 15

corpus calosum consists of how many axons

Answer 15

200 million

Question 16

What does the corpus collosum connect?

Answer 16

The left and right brain hemispheres

Question 17

What does the corpus collosum integrate?

Answer 17

motor, sensory and cognition between cerebrum cortex on the right andleft

Question 18

tentori cerebelli is an extension of the…

Answer 18

dura mater

Question 19

what does the tentori cerebelli separates what?

Answer 19

cerebellum from inferior portion of the occipital lobes

Question 20

Sulci/ fissures are both grooves of the…

Answer 20

cortex

Question 21

How are sulci and fissures differentiated

Answer 21

By size. A sulvus is a shallower groove that surrounds a gyrus. A fissure is a large furrow that divides the brain into lobes and hemispheres.

Question 22

What is a gyrus?

Answer 22

A ridge on the cerebral cortex

Question 23

What is a gyrus generally surrounded by?

Answer 23

One or more sulci

Question 24

What creats the folded appearance of the brain in humans and other mammals?

Answer 24

Gyri and sulci

Question 25

What are the 4 main brain lobes?

Answer 25

Frontal, parietal, temporal and occipital.

Question 26

What are the three main functions of the cerebral cortex?

Answer 26

Mental activities (association cortex), sensory perception (sensory cortex), and initiation and control of voluntary movement (motor cortex)

Question 27

Motor function impulses tend to leave from the anterior or posterior of each hemisphere?

Answer 27

Anterior

Question 28

Sensory function impulses tend to leave from the anterior or posterior of each hemisphere?

Answer 28

Posterior

Question 29

What is the function of the occipital lobe?

Answer 29

Visual processing

Question 30

Name any 2 functions of he frontal lobe

Answer 30

Attention span, decision making, inhibition, planning, judgement, social and sexual behaviour.

Question 31

Name any any 2 functions of the temporal lobe

Answer 31

Auditory perception, words/speech, memory association/ formation, emotions, facial recognition.

Question 32

Name any 2 functions of the parietal lobe

Answer 32

Perception, cognition, spatial awareness, navigation.

Question 33

What are the 2 main parts to the parietal lobes functions?

Answer 33

Sensation/ perception and integrating sensory (mainly visual) input.

Question 34

Which side of the body do the left and right brain hemispheres control?

Answer 34

Right controls left, left controls right.

Question 35

Where does the diencephalon sit?

Answer 35

Above brain stem

Question 36

What 2 parts does the diencephalon include?

Answer 36

Thalamus and hypothalamus

Question 37

What 2 jobs does the thalamus have?

Answer 37

Relays sensory impulses to the sensory cortex. Helps recall whether an upcoming experience will be present or not.

Question 38

Where does the hypothalamus sit

Answer 38

Under the thalamus

Question 39

What nervous system centre is the hypothalamus?

Answer 39

Autonomic

Question 40

What other system is the hypothalamus also part of?

Answer 40

The limbic system (pain, pleasure, libido, appetite and thirst)

Question 41

What does the hypothalamus regulate?

Answer 41

Regulation of body temperature, water balance and metabolism. Regulates pituitary gland.

Question 42

Approximately how long is the brain stem?

Answer 42

3 inches

Question 43

What 3 parts does the brain stem include?

Answer 43

Mid brain, pons and medulla oblongata

Question 44

In the brain stem ... matter areas (...) produce programmed ... responses for survival.

Answer 44

Grey, nuclei, autonomic

Question 45

The job of the brain stem is to be...

Answer 45

A pathway for ascending and descending tracts.

Question 46

Where is the midbrain located?

Answer 46

Bellow the cerebrum but above the pons

Question 47

What connects the cerebrum with lower parts of the brain and spinal cord?

Answer 47

Nerve fibres

Question 48

What relays ascending and descending nerve fibres

Answer 48

Nuclei

Question 49

Where is the pons found?

Answer 49

In front of cerebellum, below mid brain and above medulla oblongata.

Question 50

The bridge between the brain hemispheres of cerebellum and the bridge between higher levels of brain and spinal cord is made of what?

Answer 50

Mainly nerve fibres (white matter)

Question 51

In the pons there a some... associated with cranial nerves

Answer 51

Nuclei

Question 52

Some nuclei in the pons form... and ... centres that operate with the medulla oblongata... centre

Answer 52

Pneumotaxic, apnoustic, respiratory.

Question 53

The pons has ... matter on The surface and ... matter deep.

Answer 53

White, grey. (Opposite to main body of the brain)

Question 54

The medulla oblongata is also know by...

Answer 54

Medulla

Question 55

Where is the medulla oblongata found?

Answer 55

Bellow the pons, continuous with the spinal cord, just within cranium above foramen magnum.

Question 56

How long is the medulla oblongata?

Answer 56

2.5 cm/ 1 inch

Question 57

The medulla oblongata had ... matter on The surface and ... matter centrally

Answer 57

White, grey (Opposite of the brain)

Question 58

Which 4 centres are found in the medulla oblongata?

Answer 58

Cardiovascular, Reflex (vomiting, coughing, sneezing, swallowing), Respiratory and Visual (associated with autonomic reflexes- lies deep inside).

Question 59

The cardiovascular centre (CV) controls...

Answer 59

Rate and force of heart contractions and blood pressure.

Question 60

Which centre is found within the cardiovascular centre?

Answer 60

Vasomotor centre

Question 61

The respiratory centre controls what 3 things?

Answer 61

Rate and depth of breath and nerve impulses that go to Phoenix and intercostal nerves for inspiration.

Question 62

What area of the brain does the respiratory centre work closely with?

Answer 62

Pons

Question 63

The reflex centres activate an appropriate reflex when an irritant in the stomach or respiratory tract stimulate the...

Answer 63

Medulla