Wk 4 Central Nervous System

Question 0

What does the cerebrum do

Answer 0

It identifies information gathered by all yo organs, and controls thinking, memory, speaking and movement

Question 1

The brain can be divided into three major portions, what are they?

Answer 1

Cerebrum
Cerebellum
Brainstem

Question 2

Is the cerebellum the largest part of the brain, true or false?

Answer 2

Falseeee

Did I trick ya? It’s the cerebrum that is the largest part and it also contains sensory motor and associated areas

Question 3

Each hemisphere is divided into different lobes which are separated by sulci, can you tell me the 3 lobes

Answer 3

Frontal
Temporal
And occipital

Question 4

What hemisphere receives sensory information and sends motor commands to the opposite side of the body?

Answer 4

Cerebral

Question 5

Which hemisphere contains general interpretive speech centre and is responsible for language based skills. Left or right

Answer 5

To the left to the left

And it’s also important for mathematical calculations and logical decision making

Question 6

The right hemisphere analyses sensory information and relates it to what

Answer 6

Smells, touch, taste, sight (face recognition)

Question 7

What does the frontal lobe contain, control and receive?

Answer 7

Contains primary motor cortext
Which control dos somatic motor neurons and the
Gusta(me gusta)Tory cortex receives sensory information from the taste receptors

Question 8

Which lobe contains the auditory and olfactory cortex which receives information about hearing and smell

Answer 8

Temporal

Question 9

What does the parietal lobe contain

Answer 9

The primary sensory cortext which receives data from somatic receptors such as touch, taste, vibration, pressure, pain and temperature.

Question 10

What does the diencephalon contain

Answer 10

The thalamus and hypothalamus

Question 11

The hypothalamus is the relay and processing central for sensory information

True or false

Answer 11

False
It’s the thalamus

The hypothalamus centre controls emotions, automatic functions and hormone production.

Question 12

Why is the hypothalamus important

Answer 12

It controls automatic functions such as regulating blood pressure, heart rate, breathing and digestion

And it coordinates the nervous and endocrine system by releasing regulatory hormones that affect the anterior pituitary

Question 13

What is the brain stem composed of

Answer 13

Mesencephalon
Pons
Medulla onlongata

Question 14

Mesencephalon (mid brain) contains centres that help maintain _______ and _____

Answer 14

Consciousness and alertness

Question 15

The midbrain contains ______ that process visual and auditory information and controls reflexes triggered by these stimuli

Answer 15

Nuclei

Question 16

Pons in Latin means…..

Answer 16

Bridge!

Question 17

The nuclei in pons is involved with what controls

Answer 17

Somatic and visceral motor control - control of breathing for example

Question 18

What does VMC stand for and what it do

Answer 18

Vasomotor centre VMC and it regulates distribution of blood flow through the peripheral tissues

Question 19

The _____ _________ relays sensory information to the thalamus and to the centres in other parts of the brain stem from spinal and cranial nerves.

Answer 19

Medulla oblongs ta

Question 20

How is our delicate brain tissue protected from mechanical forces

Answer 20

Cranial bones, meninges and csf

Question 21

Meninges are made up of three layers what are they

Answer 21

Dura mater -outer layer (lines da bone )
Arachnoid mater- middle layer
Pia mater -inner layer which lines brain and spinal cord

Question 22

How does blood reach the brain

Answer 22

Via internal carotid arteries and vertebral arteries; and leaves the brain via internal jugular vein which drains the dural sinuses

Question 23

Explain the BBB blood brain barrier

Answer 23

BBB isolates neural tissue from general circulation

Limits the entry of many drugs into the brain

Question 24

What are the spinal cord functions

Answer 24

Transmits info up and down CNS
Info from and messages to periphery
Reflex actions to protect body

Question 25

There are 31 pairs of mixed spinal nerves

What are they

Answer 25

8 cervical 
12 thoracic 
5 lumbar
5 sacral 
1 coccygeal

Question 26

What spinal root contains axons of motor neurons

Answer 26

Anterior/ventral roots

Question 27

Do posterior and Dorsal roots contain axons of sensory neurons

Answer 27

Yes

Question 28

What does the grey matter contain

Answer 28

Cell bodies of neurons
Neuroglia
Unmyelinated fibres

Question 29

What are the five components of da spinal reflex

Answer 29

Receptor- detects stimuli
Sensory neuron- transmits impulses to cns
Intergrating centre- synapses in cns
Motor neurone- transmits impulse to effector
Effector- Responds