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Flashcards in Wk 4 Central Nervous System Deck (30):
0

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

Cerebrum
Cerebellum
Brainstem

1

What does the cerebrum do

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

2

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

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

3

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

Frontal
Temporal
And occipital

4

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

Cerebral

5

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

To the left to the left
And it's also important for mathematical calculations and logical decision making

6

The right hemisphere analyses sensory information and relates it to what

Smells, touch, taste, sight (face recognition)

7

What does the frontal lobe contain, control and receive?

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

8

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

Temporal

9

What does the parietal lobe contain

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

10

What does the diencephalon contain

The thalamus and hypothalamus

11

The hypothalamus is the relay and processing central for sensory information

True or false

False
It's the thalamus

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

12

Why is the hypothalamus important

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

13

What is the brain stem composed of

Mesencephalon
Pons
Medulla onlongata

14

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

Consciousness and alertness

15

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

Nuclei

16

Pons in Latin means.....

Bridge!

17

The nuclei in pons is involved with what controls

Somatic and visceral motor control - control of breathing for example

18

What does VMC stand for and what it do

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

19

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

Medulla oblongs ta

20

How is our delicate brain tissue protected from mechanical forces

Cranial bones, meninges and csf

21

Meninges are made up of three layers what are they

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

22

How does blood reach the brain

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

23

Explain the BBB blood brain barrier

BBB isolates neural tissue from general circulation
Limits the entry of many drugs into the brain

24

What are the spinal cord functions

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

25

There are 31 pairs of mixed spinal nerves
What are they

8 cervical
12 thoracic
5 lumbar
5 sacral
1 coccygeal

26

What spinal root contains axons of motor neurons

Anterior/ventral roots

27

Do posterior and Dorsal roots contain axons of sensory neurons

Yes

28

What does the grey matter contain

Cell bodies of neurons
Neuroglia
Unmyelinated fibres

29

What are the five components of da spinal reflex

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