What Organs Are Part Of Two Systems
|Two Organs Systems It Belongs To|
Keeping this in view, what organs are in two systems?
Some organs are in more than one system. For example, the nose is in both the respiratory system and also is a sensory organ in the nervous system. The testes and ovary are both part of the reproductive systems and endocrine systems.
Furthermore, what 2 organ systems does the prostate gland belong to? The prostate gland belongs to the male reproductive system.
Keeping this in consideration, what organ is included in more than one organ system?
An organ can be part of more than one organ system. For example, the ovaries produce hormones, which makes them a part of the endocrine system the ovaries also make eggs, which makes them a part of the reproductive system as well.
What are the 12 organ systems?
They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.
What Is A Neurologist Appointment Like
During your first appointment, a Neurologist will likely ask you to participate in a physical exam and neurological exam. Neurological exams are tests that measure muscle strength, sensation, reflexes, and coordination. Because of the complexity of the nervous system, you may be asked to undergo further testing.
Neurones Are The Building Blocks
The basic building block of the nervous system is a nerve cell, or neurone. Neurones are shaped differently depending on where they are in the body and what role they play. All neurones have finger-like projections called dendrites and a long fibre called an axon.In many cases, the axon is coated by a specialised membrane called a myelin sheath. The axon feathers out and has a number of bumps on it. Each bump sits near to a dendrite from another neurone. The space between the bump and the dendrite is called a synapse. Messages jump the synapse from one neurone to the next, using special chemicals called neurotransmitters.Unlike other cells in the body, neurones arent easily replaced if they die or are damaged by infection or injury.
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Subdivisions Of The Peripheral Nervous System
The sensory division carries sensory signals by way of afferent nerve fibers from receptors in the central nervous system . It can be further subdivided into somatic and visceral divisions. The somatic sensory division carries signals from receptors in the skin, muscles, bones and joints. The visceral sensory division carries signals mainly from the viscera of the thoracic and abdominal cavities.
The motor division carries motor signals by way of efferent nerve fibers from the CNS to effectors . It can be further subdivided into somatic and visceral divisions. The somatic motor division carries signals to the skeletal muscles. The visceral motor division, also known as the autonomic nervous system, carries signals to glands, cardiac muscle, and smooth muscle. It can be further divided into the sympathetic and parasympathetic divisions.
The sympathetic division tends to arouse the body to action. The parasympathetic divisions tend to have a calming effect.
Nerve fibers of the PNS are classified according to their involvement in motor or sensory, somatic or visceral pathways. Mixed nerves contain both motor and sensory fibers. Sensory nerves contain mostly sensory fibers they are less common and include the optic and olfactory nerves. Motor nerves contain motor fibers.
Functional Divisions Of The Nervous System
The nervous system can also be divided on the basis of its functions, but anatomical divisions and functional divisions are different. The CNS and the PNS both contribute to the same functions, but those functions can be attributed to different regions of the brain or to different ganglia in the periphery. The problem with trying to fit functional differences into anatomical divisions is that sometimes the same structure can be part of several functions. For example, the optic nerve carries signals from the retina that are either used for the conscious perception of visual stimuli, which takes place in the cerebral cortex, or for the reflexive responses of smooth muscle tissue that are processed through the hypothalamus.
There are two ways to consider how the nervous system is divided functionally. First, the basic functions of the nervous system are sensation, integration, and response. Secondly, control of the body can be somatic or autonomicdivisions that are largely defined by the structures that are involved in the response. There is also a region of the peripheral nervous system that is called the enteric nervous system that is responsible for a specific set of the functions within the realm of autonomic control related to gastrointestinal functions.
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Things That Can Go Wrong With The Brain
Because the brain controls just about everything, when something goes wrong, its often serious and can affect many different parts of the body. Inherited diseases, brain disorders associated with mental illness, and head injuries can all affect the way the brain works and upset the daily activities of the rest of the body.
Here are some of the problems that can affect the brain:
Brain tumors. A tumor is an abnormal tissue growth in the brain. A tumor in the brain may grow slowly and produce few symptoms until it becomes large. Or a tumor can grow and spread rapidly, causing severe and quickly worsening symptoms.
Brain tumors can be benign or malignant. They usually grow in one place and may be curable through surgery if theyre located in a place where they can be removed without damaging the normal tissue near the tumor. A malignant tumor is cancerous and more likely to grow rapidly and spread.
Cerebral palsy. This condition is the result of a developmental defect or damage to the brain before or during a childs birth, or during the first few years of life. Cerebral palsy affects the motor areas of the brain. A person with cerebral palsy may have average intelligence or can have severe developmental delays or mental retardation.
Headaches. Of the many different types of headaches, some of the more common are:
Reviewed by: Yamini Durani, MDDate reviewed: October 2012
Development Of The Nervous System
Before the formation of the nervous system in the embryo, 3e main cell layers become differentiated. The innermost layer, the endoderm, gives rise to the gastrointestinal tract, the lungs, and the liver. The mesoderm gives rise to the muscle, connective tissues, and the vascular system. The third and outer most layer, the ectoderm, formed of columnar epithelium, gives rise to the entire nervous system and skin.
During the third week of development, the ectoderm on the dorsal surface of the embryo between the primitive knot and the buccopharyngeal membrane becomes thickened to form the neural plate.
The plate, which is pear shaped and wider cranially, develops a longitudinal neural groove. The groove now deepens so that it is bounded on either side by neural folds. With further development, the neural folds fuse, converting the neural groove into a neural tube. Fusion starts at about the midpoint along the groove and extends cranially and caudally so that in the earliest stage, the cavity of the tube remains in communication with the amniotic cavity through the anterior and posterior neuropores.
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How Does The Central Nervous System Protect Itself From Injury
The central nervous system is better protected than any other system or organ in the body. Its main line of defense is the bones of the skull and spinal column, which create a hard physical barrier to injury. A fluid-filled space below the bones, called the syrnix, provides shock absorbance.
Unfortunately, this protection can be a double-edged sword. When an injury to the central nervous system occurs, the soft tissue of the brain and spinal cord swells, causing pressure because of the confined space. The swelling makes the injury worse unless it is rapidly relieved. Fractured bones can lead to further damage and the possibility of infection.
Does The Circulatory System Remove Waste
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
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What Two Systems Does The Brain Belong To
Nervous system and Endocrine system
hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called crystal body and lens bodies were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.
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the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.
Is The Brain And Spinal Cord Part Of The Central Nervous System
Broadly speaking, the nervous system is organised into two main parts, the central nervous system and the peripheral nervous system . The CNS is the processing centre of the body and consists of the brain and the spinal cord. Both of these are protected by three layers of membranes known as meninges.
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What Does The Spinal Cord Do
central nervous systemperipheral nervous systemDiagram
What Organ System Does The Brain Belong To
What Organ System Does The Brain Belong To. It is the only major organ in that system.nervous system The brain belongs to the nervous system.
Select the name of the system to which the following organ belongs. Single muscle cell, multiple muscle cells together forming muscle tissue, organ made up of muscle tissue , and organ system made up of. It receives information and responds to it. The brain belongs to the nervous system. An organ system is a group of organs that work together to perform a certain function in an organism’s body.
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About The Brain And Spinal Cord
Together, the brain and spinal cord form the central nervous system. This complex system is part of everything we do. It controls the things we choose to dolike walk and talkand the things our body does automaticallylike breathe and digest food. The central nervous system is also involved with our sensesseeing, hearing, touching, tasting, and smelling as well as our emotions, thoughts, and memory.
The brain is a soft, spongy mass of nerve cells and supportive tissue. It has three major parts: the cerebrum, the cerebellum, and the brain stem. The parts work together, but each has special functions.
The cerebrum, the largest part of the brain, fills most of the upper skull. It has two halves called the left and right cerebral hemispheres. The cerebrum uses information from our senses to tell us what’s going on around us and tells our body how to respond. The right hemisphere controls the muscles on the left side of the body, and the left hemisphere controls the muscles on the right side of the body. This part of the brain also controls speech and emotions as well as reading, thinking, and learning.
The cerebellum, under the cerebrum at the back of the brain, controls balance and complex actions like walking and talking.
The brain stem connects the brain with the spinal cord. It controls hunger and thirst and some of the most basic body functions, such as body temperature, blood pressure, and breathing.
The Central And Peripheral Nervous Systems
Figure 1. Central and Peripheral Nervous System The structures of the PNS are referred to as ganglia and nerves, which can be seen as distinct structures. The equivalent structures in the CNS are not obvious from this overall perspective and are best examined in prepared tissue under the microscope.
The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system is the brain and spinal cord, and the peripheral nervous system is everything else . The brain is contained within the cranial cavity of the skull, and the spinal cord is contained within the vertebral cavity of the vertebral column. It is a bit of an oversimplification to say that the CNS is what is inside these two cavities and the peripheral nervous system is outside of them, but that is one way to start to think about it. In actuality, there are some elements of the peripheral nervous system that are within the cranial or vertebral cavities. The peripheral nervous system is so named because it is on the peripherymeaning beyond the brain and spinal cord. Depending on different aspects of the nervous system, the dividing line between central and peripheral is not necessarily universal.
Figure 2. Gray Matter and White Matter A brain removed during an autopsy, with a partial section removed, shows white matter surrounded by gray matter. Gray matter makes up the outer cortex of the brain.
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How The Spinal Cord And Muscles Work Together
The spinal cord is divided into five sections: the cervical, thoracic, lumbar, sacral, and coccygeal regions. The level of injury determines the extent of paralysis and/or loss of sensation. No two injuries are alike.
This diagram illustrates the connections between the major skeletal muscle groups and each level of the spinal cord. A similar organization exists for the spinal control of the internal organs.
How The Brain Works
Considering everything it does, the human brain is incredibly compact, weighing just 3 pounds. Its many folds and grooves, though, provide it with the additional surface area necessary for storing all of the bodys important information.
The spinal cord, on the other hand, is a long bundle of nerve tissue about 18 inches long and ¾ inch thick. It extends from the lower part of the brain down through spine. Along the way, various nerves branch out to the entire body. These make up the peripheral nervous system.
Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by the set of ring-shaped bones called vertebrae that make up the spine. Theyre both cushioned by layers of membranes called meninges as well as a special fluid called cerebrospinal fluid. This fluid helps protect the nerve tissue, keep it healthy, and remove waste products.
The brain is made up of three main sections: the forebrain, the midbrain, and the hindbrain.
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Organization Of The Nervous System
Although terminology seems to indicate otherwise, there is really only one nervous system in the body. Although each subdivision of the system is also called a “nervous system,” all of these smaller systems belong to the single, highly integrated nervous system. Each subdivision has structural and functional characteristics that distinguish it from the others. The nervous system as a whole is divided into two subdivisions: the central nervous system and the peripheral nervous system .
What Conditions Can Affect Your Nervous System
Your nervous system has lots of protection. Your brain is guarded by your skull, and your spinal cord is shielded by small bones in your spine and thin coverings . Theyâre both cushioned by a clear fluid called cerebrospinal fluid.
Still, things can go wrong with your nervous system just like any other part of your body. When a disorder damages it, that affects the communication between your brain, your spinal cord, and your body. Examples of these disorders include:
- Infections like meningitis, encephalitis, or polio
- Physical problems like an injury, Bellâs palsy, or carpal tunnel syndrome
- Conditions like Parkinsonâs disease, multiple sclerosis, or Alzheimerâs disease
- Issues with your blood vessels, like strokes, transient ischemic attacks , or subdural hematoma
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White And Gray Matter
Microscopically, there are differences between the neurons and tissue of the CNS and the peripheral nervous system . The CNS is composed of white and gray matter. This can also be seen macroscopically on brain tissue. The white matter consists of axons and oligodendrocytes, while the gray matter consists of neurons and unmyelinated fibers. Both tissues include a number of glial cells , which are often referred to as supporting cells of the CNS. Different forms of glial cells have different functions, some acting almost as scaffolding for neuroblasts to climb during neurogenesis such as bergmann glia, while others such as microglia are a specialized form of macrophage, involved in the immune system of the brain as well as the clearance of various metabolites from the brain tissue.Astrocytes may be involved with both clearance of metabolites as well as transport of fuel and various beneficial substances to neurons from the capillaries of the brain. Upon CNS injury astrocytes will proliferate, causing gliosis, a form of neuronal scar tissue, lacking in functional neurons.
The brain consists of a cortex, composed of neuron-bodies constituting gray matter, while internally there is more white matter that form tracts and commissures. Apart from cortical gray matter there is also subcortical gray matter making up a large number of different nuclei.