The respiratory centre that responds to changes in carbon dioxide concentrations in the blood is.. Help?

Question

the respiratory centre that responds to changes in carbon dioxide concentrations in the blood is located in the ..?

A. cerebrum

B. cerebellum

C. hypothalamus

D. medulla oblongata

Answer 1

In the   D. medulla oblongata

Answer 2

D.  The medulla oblongata

According to Wikipedia:  http://en.wikipedia.org/wiki/Medulla_obl...

The medulalla oblongta is the lower portion of the brainstem. It deals with autonomic functions, such as breathing and blood pressure. The cardiac center is the part of the medulla oblongata responsible for controlling the heart rate....

In the movie The Waterboy, when asked why alligators are so aggressive, Bobby Boucher responds "My mama says that alligators are ornery because they got all them teeth and no toothbrush." Science professor "Colonel Sanders" then informs him that aggressive behavior in alligators is caused by an enlarged Medulla Oblongata, and insults Boucher by saying that the waterboy's high aggression is also caused by an enlarged Oblongata. Boucher then angrily tackles Sanders. "

According to Wikipedia:  http://en.wikipedia.org/wiki/Hypothalamu...

"The hypothalamus is responsible for certain metabolic processes and other activities of the Autonomic Nervous System. It synthesizes and secretes neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. It is also responsible for the motivation of what has been called the "Four F's"(feeding, fighting, fleeing, and sexual reproduction).

The hypothalamus controls body temperature, hunger, thirst,  fatigue, anger, and circadian cycles."

According to Wikipedia:  http://en.wikipedia.org/wiki/Cerebellum

"The cerebellum is a region of the brain that plays an important role in the integration of sensory perception, coordination and motor control. In order to coordinate motor control, there are many neural pathways linking the cerebellum with the cerebral motor cortex (which sends information to the muscles causing them to move) and the spinocerebellar tract (which provides proprioceptive feedback on the position of the body in space). The cerebellum integrates these pathways, like a train conductor, using the constant feedback on body position to fine-tune motor movements."

According to Wikipedia:  http://en.wikipedia.org/wiki/Cerebrum

"The telencephalon (pronounced /tɛlɛnˈsɛfəlɒn/), cerebrum, or forebrain is the most anterior or, especially in humans, most dorsal region of the vertebrate central nervous system. "Telencephalon" refers to the embryonic structure, from which the mature "cerebrum" develops. The dorsal telencephalon, or pallium, develops into the cerebral cortex, and the ventral telencephalon, or subpallium, becomes the basal ganglia. The cerebrum is also divided into symmetric left and right cerebral hemispheres."

So if it has a C then it relates to how we think and see your lives.  The Cerebrum or Sera-brum is close to the sky and therefore is on top and is part responsible for conscious thought.

The Cerebellum rings like a Sera-bell-um and we hear the ringing of a bell so the Cerebellum relates to how we sense the word.

The Hypothalamus starts with H for hormone, it contains the Pituitary gland and controls the body through hormones, including the "flight or fight response" and adrenaline release.

The Medula Oblongata is the longest name it is at the base of the brain and is the oldest part of the brain, even the primitive alligator (a modern day dinosaur) has it; therefore it controls the basic and fundamental processes of life like your heart and your breathing reflex.

If you look at the spelling of the words and compare their length then you see the order that they stack up in from the bottom of the brain to the top.  The medulla oblongata is on top of the brain stem at the base of the brain.  The Hypothalamus is underneath the brain, like the muffler on your car; and just like that muffler it controls what flows through and out of the engine (much as hormones do).

The cerebellum sits at the rear of the brain on level with the hypothalamus but over and behind the medulla oblongata.  The cerebrum is the largest (in humans) and sits as king on top of it all.

Another way to remember it is that the lungs and heart are autonomic processes so the one with the most letter "a"s in it is in control of the autonomic process.  H=hormones=hypothalamus, and cerebrum is spelled shorter than cerebellum so it is on top of it.

Little tricks to learn and remember are to make goofy associations that are easy to remember like the part with the most letter "a"s is in control of the autonomic system.

However the real answer is the ANS and the PSNS; these are reflex actions buried deep in our spinal cord, inside of the body and below the neck.  That really isn't important unless you are taking some sort of medical classes and need to understand the nervous system in depth, but 7 out of the 12 questions you asked seem to be in anatomy and chemistry.  You might want to give us a little more information in your personal profile so we can tailor our responses to you.

According to Wikipedia:  http://en.wikipedia.org/wiki/Autonomic_n...

"The autonomic nervous system (ANS) (or visceral nervous system) is the part of the peripheral nervous system that acts as a control system, maintaining homeostasis in the body. These activities are generally performed without conscious control or sensation. The ANS affects heart rate, digestion, respiration rate, salivation, perspiration, diameter of the pupils, micturition (urination), and sexual arousal. Whereas most of its actions are involuntary, some, such as breathing, work in tandem with the conscious mind. Its main components are its sensory system, motor system (comprised of the parasympathetic nervous system and sympathetic nervous system), and the enteric nervous system."

According to Wikipedia:  http://en.wikipedia.org/wiki/Parasympath...

"The parasympathetic nervous system (PSNS) is a division of the autonomic nervous system (ANS), along with the sympathetic nervous system (SNS) and Enteric nervous system (ENS or "bowels NS"). The ANS is a subdivision of the peripheral nervous system (PNS). ANS sends fibers to three tissues: cardiac muscle, smooth muscle, or glandular tissue. This stimulation, sympathetic or parasympathetic, is to control smooth muscle contraction, regulate cardiac muscle, or stimulate or inhibit glandular secretion."