Anatomy Of The Nervous System

Question 1

Three primary layers of the embryo developmental stages?

Answer 1

Ectoderm, Endoderm and Mesoderm

Question 2

What is ectoderm and where is it found?

Answer 2

Ectoderm is the outer layer and it is mostly skin and neural tissues

Question 3

What is endoderm and where is it found?

Answer 3

Endoderm is found in the inner side of the cell and it is mostly inner organs such as digestion section and respiratory region

Question 4

What is Mesoderm and where is it found?

Answer 4

Mesoderm is in the inbetween layers and mostly makes up the bones and muscles

Question 5

What is neural plate is made of?

Answer 5

A neural plate is made of Ectoderm on the dorsal side

Question 6

What is neural tube matures into?

Answer 6

Neural tube matures into future brain and spinal cord.

Question 7

What is spina bfida

Answer 7

A developmental birth defect where the neural tube is not fully closed.

Question 8

How can spina bfida be prevented?

Answer 8

Intake of folic acid

Question 9

How does this spina bfida affect the movement?

Answer 9

It affects the movement by affecting the motor movement of hips, legs knee and feet

Question 10

The regions of the developmental brain at 1 month?

Answer 10

Prosencephalon, Mesoencephalon and Rhomboencephalon

Question 11

Regions of the Brain at developmental stage of 5 weeks

Answer 11

Prosencephalon turns into to telencephalon and Diencephalon
Mesoencephalon turns into mesencephalon
Rhomboencephalon turns into Metencephalon and myelencephalon

Question 12

Fully developed brain structure

Answer 12

Telencephalon turns into cerebrum and cerebral hemisphere and white matter also basal nuclei
Diencephalon remains the same but with thalamus, epithalamus and hypothalamus
Mesencephalon turns into midbrain
Metecephalon turns into pons
Myelencephalon turns into medulla oblongate

Question 13

Sagittal plane

Answer 13

Divides the brain into left and right

Question 14

Coronal plane

Answer 14

Divides the body into front and back

Question 15

Horizontal plane

Answer 15

Divides the body into top and bottom, cranial and caudal

Question 16

What does gray matter contain and where is it located

Answer 16

Gray mater contain cell bodies , dendrites and synapses and on the cortical surface of the brain

Question 17

What does white matter contain and where it is located

Answer 17

White matter contains myelinated axons mostly inner region of the brain

Question 18

What are two main nervous systems?

Answer 18

Central nevous system and Peripheral nervous system

Question 19

parts of the central nervous system?

Answer 19

Brain and spinal cord

Question 20

Parts of the peripehral nervous system

Answer 20

Spinal and cranial nerves

Question 21

What is topographical mapping

Answer 21

An organized systamtically representative of sensory stimulus on the neural regions

Question 22

Major components of the CNS

Answer 22

Spinal cord, Brain stem, Forebrain and cerebellum and also cerebrum

Question 23

What is brain stem and what does it do and what does it contain

Answer 23

Brain stem contains thalamus, midbrain , pons and medulla

Question 24

What does the brain stem do

Answer 24

Controls the reflexes, controlling heart rate also limb movements

Question 25

What is cerebellum and what does it do

Answer 25

cerebellum is basically set of its own nerual characterstics and it controls the movement, balance and limb coordination

Question 26

What does hypothalamus control

Answer 26

Hypothalamus controls heart rate , fat metabolism, respiratory and Body temperature

Question 27

What does thalamus control

Answer 27

It controls the relaying of sensory and motor information to brain except for smell and two thalamus covers the third ventricle and the main prodcut diencephalon.

Question 28

Explain cerebrum and what does it contain

Answer 28

Contains cerberal cortex and has a large fibre tract known as corpus callousum

Question 29

Which mutated gene and the responsible protein for the mutation and is it autosomal recessive or dominant

Answer 29

Mutation in the PCNT gene results in the loss of the development of the corpus callosum the responsible protein for the PCNT gene is pericentrin and it is an autosomal recessive which means both of the parents carry one copy of the gene but does not demonstrate the gene

Question 30

Life expectancy and characteristics of the person with the primordial dwarfism

Answer 30

People tend to be smaller and approximately only 100 people are mostly affected and nasal / high pitch voice and they tend to lack the coordination of the interaction between the hemispheric advantage.

Question 31

How does the pericentrin affect the growth?

Answer 31

Pericentrin is mostly for the cell cycle and cell division and mutation in the pcnt could potentially result in the expression of someother protein.

Question 32

Where does the basal ganglia is located and what does it do?

Answer 32

Basal ganglia located in the prefrontal cortex and it helps to prioritize the information and it grows and nurtures with the prefrontal cortex.

Question 33

What does hippocamopus do

Answer 33

It is crucial for learning and memory

Question 34

What does amygdala do?

Answer 34

Emotional centre of the brain and fear and aggression behaviour, Most of the teen heavily rely on amygdala.

Question 35

What does adults more depend on compared to teens?

Answer 35

Adults mostly tend to depend on preforntal cortex as it is mostly devloped around the age of 25 while teens base on amygdala.

Question 36

Function of basal ganglia?

Answer 36

Movement and mood also memory and attention.

Question 37

Functions of the prefrontal cortex?

Answer 37

Decision making, thinking and planning . Organizing and problem solving and behavioual control.

Question 38

Somatosensory information from the the body ( exculding neck and head) mapped into where?

Answer 38

Dorsal root ganglion

Question 39

Somatosensory information above from the neck and body mapped into where

Answer 39

Trigeminal ganglion.