SENSE ORGANS
Contains three ossicles or bones, they amplify vibrations in the air
The Ear
A stimulus normally invokes a __________
Response
When you salivate
Glandular
Things in our environment that cause a response
Stimuli
What are the main parts of the Central Nervous System?
Brain and Spinal Cord
The Central Processing Unit of it all. All receptors seek to connect to this condensed mass of nervous tissue.
The Brain
A stimulus may be Muscular or ______________
Glandular
A sudden noise or shock can make a person ________
Jolt
Two types of stimuli
Internal and External
Where are blood vessels located?
All over the body
Sense organs connect to their sensory environment via sensory ____________
Receptors
While most cells are bulgy or round. These cells, however tend to be very long.
Nerve Cells
Impulses sent along nerves are __________. This ensures stumuli receive speedy response.
Instantaneous
The type of stimuli that work with the sense or smell.
Chemicals, Odours, Fragrances
Besides the eyes and the skin, the other sense organs are:
Nose, Tongue and Ears
This sensory organ has rods and cones which are stimulated by different electromagnetic waves in the visible spectrum.
The Eye
A muscular response that sometimes happens without your realizing it. It is adapted to protect you from danger.
Reflex
This type of response involves movement, usually to get away from danger or protect the body
Muscular
Chemicals in circulating within our bodies that may stimulate long term changes such as development of sexual and developmental features in humans
Hormones
This connects to the brain. The reason we often act before deciding. Such as when we touch a hot pot unwittingly. It forms a part of the CNS.
Spinal cord
This sense organ has many different types of receptor cells. This includes baro receptors, thermo receptors and pain receptors.
The Skin
Chemicals and Vibrations
This is an automatic response system in the body and controls the water balance in our tissues.
Osmoregulation
The hormone adrenaline is common to both humans and animals. It's key role is to evoke ___________ or __________.
Fight or Flight
Besides the heart, name two components of the circulatory system.
Lungs, Blood Vessels