biopyschology

Question 2

what is the central nervous system made up of ?

Answer 2

brain
spinal cord

Question 3

outline the main functions of CNS

Answer 3

• control behaviour
• regulate the body’s physiological processes

Question 4

what is the function of spinal cord ?

Answer 4

-relay infos between the brain and the rest of the body
- monitor and regulates bodily processes .e.g digestion , breathing ,reflexes
connected to different bodily parts by pairs of spinal nerves
-contain circuit of nerves cells

Question 5

name 4 parts of main brain parts ?

Answer 5

Cerebrum

cerebellum

Diencephalon includes thalamus and hypothalmus

brain stem

Question 6

how many parts are cerebrum split into ?

Answer 6

4 main parts
frontal lobes - thoughts and speech
Occiptal lobes -visula images
- Cerebral hemisphere - left hemispere lang speech
right hemisphere -visual motor
Perittal lobe - sensory touch , temp

Question 7

what are the functions of endocrine system ?

Answer 7

• network of glands that manufacture and secrete chemical messengers -hormones

Question 8

how does endocrine system deliver hormones

Answer 8

• uses blood vessesls

Question 9

what hormone does adrenal gland produce

Answer 9

Adrenaline - fight /flight response

Question 10

wha is the function of hypothalamus

Answer 10

• controls pituary gland
  – releases hormone to activate the pituary gland

Question 11

what are the changes that occur during sympathetic

Answer 11

• increased heart rate
• force of heart contraction
  -pupils dilate
  inihibted digestion
  slows bodily proccesses.e.g urination

Question 12

what happens during the parasympathetic

Answer 12

• slows heart rate
  -decreases blood pressure
• stimualtes digestion
  pupils constricts
• body relaxes
  -decreases breathing rate

Question 13

what is the function of Peripheral nervous system ?

Answer 13

to relay nerve impulses from the CNS to the rest of the body

Question 14

what does PNS divide into

Answer 14

• somatic
  Autonomic nervous sytem

Question 15

what is the function of somatic nervous syatem -

Answer 15

– involved in Reflex action without involvement of CNS -protection from harm
made up of 12 pairs cranial nerves +31 pairs of spinal nerves

Question 16

what is the function of Autonomic nervous system (ANS)

Answer 16

• Regulates the function of our internal organs e.g . heart ,stomach
• controls muscles within body
• involulantry , reflexive

Question 17

in what situation is ANS most important in ?

Answer 17

• fight /flight response - emergenicies
• non emergenicies - rest and digest

Question 18

what is the function of sensory neurone ?

Answer 18

carry nerve impulses from sensory receptors to CNS

Question 19

What is the function of relay neuron

Answer 19

• Alllows communciation between motor and sensory neurons
• in the CNS

Question 20

What is the function of motor neuron?

Answer 20

takes message from CNS to muscle glands
located in PNS

Question 21

What is the function of mylein sheath ?

Answer 21

• transmission of nerve impulses along the axon
  insulates the axons speeds up the rate of transmission

Question 22

what is the gap between mylein sheath known as ?

Answer 22

node of ranvier
increases transmission

Question 23

what is junction between neaurones knows ?

Answer 23

synapse