Overview of nervous system

Question 1

What is the purpose of the nervous system?

Answer 1

• coordinates all activities of the body.
• Enables to body to repsond and adapt to changes both in and out of the body.

Question 2

what is the CNS made of ?

Answer 2

Brain and spinal cord

Question 3

Overview of cerebrum?

Answer 3

It has a left and right hemisphere an dis further divided into four lobes:

• Frontol
• Parietal
• Temporal
• Occipital

Question 4

What is the purpose of the frontol lobe?

Answer 4

Primarily responsible for reasoning and thought.

Question 5

What is the purpose of the parietal lobe?

Answer 5

Primarily responsible for integrated sensory information.

Question 6

What is the purpose of the temporal lobe?

Answer 6

Primarily resposible for processing auditory information from the ears.

Question 7

What is the purpose of the occipital lobe?

Answer 7

Primarily responsible for processing visual information from the eye.

Question 8

Overview of Cerebellum

Answer 8

It is located under the cerebrum and above the 1st cervical of the neck.

It is responsible for :

• Muscle coordination
• Balance
• Posture
• Muscle tone

Question 9

Overview of Diencephalon?

Answer 9

It is found betweeen the cerebrum in the midbrain. It consist of the thalamus and hypothalamus.

The thalamus directs sensory impulses to the cerebrum.

The hypothalamus controls and regulates temperature, apeptite, water, balance, sleep, blood vessel constriction and dilation.

Question 10

Overview of midbrain?

Answer 10

Located below cerebrum.

Resonsible for eye and auditory reflexes.

Question 11

Overview of pons?

Answer 11

Located below midbrain (in brainstem).

resonsible for certain reflex actions such as; chewing, tasting and saliva production.

Question 12

Overview of Medulla Oblongata?

Answer 12

Located at the bottom of brainstem. Connects to the spinal cord.

Resposnible for regulating:

• Heart and blood vessel functions.
• digestion.
• respiration.
• swallowing.
• coughing.
• sneezing.
• blood pressure.

Question 13

What are the four regions of the spinal cord?

Answer 13

• Cervical.
• Thoracic.
• Lumbar.
• Afferent and Efferent spinal nerves.

Question 14

Function of Afferent and Efferent nerves?

Answer 14

Afferent carries information from the body to the brain.

Efferent carries information from the brain to the body.

Question 15

What are the two part of the PNS?

Answer 15

Somatic

Autonomic

Question 16

Function of the somatic nervous system?

Answer 16

It is responsible for carrying motor and sensory information. It is also responsible for nearly all voluntary muscle movements. Aswell as processing information from external stimuli.

It is made up of nerves connected to the skin, sensory organs and skeletal muscles.

Question 18

Function of Afferent neurons?

Answer 18

takes information from the nerves to the CNS.

Question 19

Function of Efferent neurons?

Answer 19

Takes information from the CNS to the muscles fibres throughout your body.

Question 20

What is the autonomic nerves system split into ?

Answer 20

The sypmpathetic and parasympathetic nervous system.

Question 21

What is the sympathetic nervous system?

Answer 21

“Fight or Flight” revs up the body to defend or escape from a threat.

Question 22

What is the parasympathetic nervous system?

Answer 22

Brings all systems in th ebody back to normal once the threat had gone.