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the smell travels to the olfactory cells, near the top of the nose. when these cells detect the smell, the cells send specific electrical impulses to the brain, which are then interpreted by the lobe of the brain, located under the skull fissure
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What path does bacteria take when it enters the body?
they enter through the nose, mouth, eyes, anywhere you touch.
What is the usual path of message received by the body from the environment?
sense organ-nerves-spinal cord-brain
What is the pathway of smell from the olfactory receptors to the brain?
The olfactory bulb is a small , match-head sized organ in the top of the nasal cavity,and is connected to hundreds of olfactory hairs, or cilia, which lie in a layer of mucous. These have receptor sites, and it is still not well understood how these work, but one theory is that the shape of the molecule (of the substance being smelt) and the way in which it locks onto the receptor determines the impulses sent to the brain. (the bulb is thought of as a direct extension of the brain) If this is true, it may help explain why with prolonged exposure to a smell, you will stop smelling it until you go outside and clear the nose and come back.The receptor sites become saturated with the molcules and stop sending nerve impulses.
What is the path that nervous impulse takes through the nervous system?
sensory neurone --> enters spinal cord --> relay neurone --> brain(is not a reflex action) or motor neurone(if action is reflex)
Briefly describe the path that oxygen follows in your respiratory system and your circulatory system?
Nose, Pharynx, Larynx, trachea, bronchi, Lungs, Aveoli, Capillary walls, into blood, Left Atrium, Left Ventricle, Aorta, Body.
What is the usual path of messages receive by the body from the environment?
sense organ-nerves-spinal cord-brain
Why might an injury to the spinal cord result in paralysis?
The nervous system would not have a path through which to send messages to the brain.
Why DeNovo path way absent in RBC and brain?
why DeNovo path way absent in R.B.C. and brain?
What device determines the destination and optimal path for messages?
router
What path does inhaled air go through?
your nose
Why did blood rush out of R Budd Dwyers nose after he suicided?
Because when he fired the handgun, the bullet went through the roof of his mouth, through his nasal cavity, and through his brain, all of which are very full of blood vessels. The blood will flow out through the easiest path, which would be his nose.
How does a nose cone on a bottle rocket affect its flight path?
While a nose cone can either reduce or add drag, it provides a minimal amount of stability to the rocket' flight path. The fins are the most critical component for stabilizing a rocket's flight path; that's where your focus should be.
What does the root path mean?
The root path is the main directory of a file system that contains all other directories and files. It is represented by a forward slash ("/") in Unix-based systems and by a drive letter (e.g., C:) in Windows systems. Starting from the root path allows you to navigate through the entire file system hierarchy.
What is the function of a motor neurons?
controls musclesRelay messages from the Brain in the CNS down through the Spinal Cord and into the PNS, from there the motor neuron synapses on muscle fibers. i.e. knee jerk reflex & the neuromuscular junction.
Diagram for denovo pathway?
why denovo path way absent in R.B.C.and brain?
Can mice smell food if it is marked along a path and for how long?
Part dog part human
Do all messages from the body travels to the brain through the spinal cord?
The nerves, spinal cord and brain work together to keep you aware of what's going on with the body and get messages out to the muscles and other body systems. Not all nerve messages are handled by the brain though and so not all involve the spinal cord, the main path way to the brain from the body's nerves. In addition there are some other routes for information to get to the brain. Some areas of the body are under "local control" and do not require brain commands or the use of the spinal cord. This would include the involuntary muscles ( e.g. you don't have to think Beat ... beat ... beat at your heart all day) and glands which secrete hormones and enzymes in response to chemical conditions in the body (e.g. no brain commands go to the pancreas) Some nerve responses only go as far as the spinal cord and then are bounced back to the originating area without the brain's input. An example, if you prick your finger the pain input is bounced back to the arm muscles to pull your finger away without the brain's input. A secondary message goes to the brain to notify it of the pain. A lot of the body nerve input does go through the spinal cord. Muscle position information, pain messages, pressure, heat. A lot of the messages from the brain follow the return route (muscle movement) There are however some nerve impulses which get hard wired directly into the brain. As an example the eyes contain the optic nerves which are essentially brain tissue poking through the front of your face. This results from the need to have almost instantaneous awareness of what is going on visually. Routing nerve messages through the spinal cord would take too long and the lateness of the information would make hunting (like a bird chasing flying insects) or jumping from limb to limb (as a monkey does) impossible.
