NERVOUS SYSTEM

Question 1

WHAT IS NERVOUS SYSTEM

Answer 1

the nervous system is a network of cells which enables the ability for the brain to receive information to coordinate a response.
(receives information from out and inside the body)

Question 2

THREE MAIN FUNCTIONS OF NS?

Answer 2

• receives information
• process information
• coordinates a response (to informaion)

Question 3

EXAMPLE OF RECEIVE, PROCESS AND RESPOND?

Answer 3

receive: sensory stimuli from the external world (environment)
process: brain - ‘it is really hot outside’
respond: person takes jumper off - is no longer hot

Question 4

VAGUS NERVE?

Answer 4

one of your body’s longest nerves extending from brain to gut.

Question 5

IMPACTS OF POOR GUT MICROBIOME?

Answer 5

obesity, cancer and heart disease

Question 6

THE MICROBIOME?

Answer 6

a group of living organisms found as part of your microbiota good bacteria that we want from your body

Question 7

GUT MICROBIOTA?

Answer 7

• probiotics are good for gut microbiota
• prebiotics are food for probiotics
• antibiotics kill bacteria

Question 8

THE GUT-BRAIN AXIS?

Answer 8

The gut is often referred to as a 2nd brain.

Question 9

ENTERIC NERVOUS SYSTEM?

Answer 9

• branch of autonomic ns
• the ENS controls the activity of the gastrointestinal tract or gut
• located stomach

Question 10

CENTRAL NERVOUS SYSTEM? aaa

Answer 10

• process information received through sensory systems and other parts of the body to activate appropriate actions
  -located in middle of the body
• consist of brain and spinal cord

Question 11

WHAT ARE THE 2 STRUCTURES OF THE CNS?

Answer 11

spinal cord
brain: network of cells that processes info received from nerves

Question 12

NAME 1 MAJOR FUNCTION FOR SPINAL CORD?

Answer 12

• receives sensory info from body and sends it to the brain for processing

Question 13

PERIPHERAL NERVOUS SYSTEM?

Answer 13

entire network of nerves located outside the CNS that transmits information to and from CNS

Question 14

TWO DIVISIONS OF PERIPHERAL NS?

Answer 14

SOMATIC NS: VOLUNTARY MOVEMENT
AUTONOMIC NS: INVOLUNTARY/AUTOMATIC FUNCTIONS

Question 15

AUTONOMIC NS DIVISIONS:

Answer 15

sympathetic ns: flight or fight response, increase HR, dilated eyes, sweating and hotness
parasympathetic ns: relaxing state, normal HR, eyes constrict, cooler
(returns body back to homeostasis).

Question 16

SOMATIC NS?

Answer 16

• carries sensory information to the CNS and motor information from the CNS
• sensory information is recieved at sensory receptor sites in the body and carried along sensory neural pathways.

Question 17

SOMATIC NS DIVISIONS?

Answer 17

Sensory function: someone touched your hand the sns sends information to the skin to brain
Motor function: voluntarily move a body part

Question 18

AUTONOMIC NS?

Answer 18

• network of nerves that carries messages between the CNS, heart, lungs. glands etc
• ANS regulates, or controls

Question 19

WHAT IS THE BRAIN?

Answer 19

network of cells that processes information receieved from nerves

Question 20

WHAT IS THE SPINAL CORD?

Answer 20

• long, thin bundle of nerve tissue that extends from brain to lower back