Nervous & Endocrine System

Question 1

Explain the difference between NS and ES?

Answer 1

-The NS is a network of cells/ primary communicator based on electrical and chemical signals.
-The ES is based on hormones

Question 2

What are the 2 main functions of NS?

Answer 2

-Collect, process and respond to info in the environment
- coordinate the working of different organs and cells in the body

Question 3

2 main systems within the NS?

Answer 3

Peripheral NS and central NS

Question 4

Structure and function of central NS?

Answer 4

Brain- centre of conscious awareness, cerebral cortex allows for higher mental thinking
Spinal cord- extension of brain, reflex action, passes message to from brain and connects nerves to PNS

Question 5

What are the two systems within the PNS?and what do they do?

Answer 5

• autonomic NS, governs vital function e.g. breathing or digestion(involuntary)
• somatic NS, governs muscle movement recovers sensory information

Question 6

2 subsections of autonomic NS?

Answer 6

Sympathetic NS- fight or flight increases heart rate etc
Parasympathetic NS-calms you e.g decreases breathing rate

Question 7

Is the ES slower or faster than the NS? The

Answer 7

It works slower but has widespread powerful effects

Question 8

What are glands ?

Answer 8

Organs which produce hormones

Question 9

What is the key gland or master gland called? And what does it do?

Answer 9

The pituitary gland controls the real ease of hormones in all other endocrine glands

Question 10

Hormones are secreted into the … and affect any … in the body which has a … for that particular hormone.

Answer 10

Bloodstream
Cell
Receptor