INTERNAL COMMUNICATION

Question 1

INTERNAL COMMUNICATION

Answer 1

• This is carried out through the activities of the nervous and endocrine systems.

Question 2

Nervous system

Answer 2

Nervous system
• The nervous system is a rapid communication system.
• The CNS which is known as the central nervous system consist of:
• The brain
• The spinal cord, which extends from the base of the skull to the lumbar
• The spinal cord is protected from injury which lies within the bones of the spinal column.

Question 3

Peripheral nervous system

Answer 3

• The peripheral nervous system which is known as the PNS is a network of nerve fibres which are:
• sensory or afferent nerves which transmit signals from the body to the brain.
• motor or efferent nerves which transmit signals from the brain to the effector organs such as the muscles and glands.
• The somatic senses are pain, touch, heat and cold. These sensations arise following stimulation of specialised sensory receptors at nerve endings found throughout the skin.