1. Neuron and types of neurons
2. Parts of a neuron
3. Synapse
4. Elements of the nerve system
5. White and grey matter
6. Voluntary and involuntary acts
7. What is an endocrine gland?
8. What is an hormone?
9. Main glands and hormones
10. Control of rhe hormone action (Negative feedback): insuline an glicagon as an example.
11. Diabetes
1. Neuron is a cell which is a part of the nerves
ResponderEliminarSensory neurones, motor neurones and interneurones.
2. Dendrites, nucleus and axon
3. Synapse is the small gap between neurons.
4. The brain, the spinal cord and the central nervous system.
5. White matter: Is a group of axons. In the encephalon and the outside the spinal cord.
Grey matter: Is a group of axons. In the spinal cord and the "codia" of encephalon.
7. Endocrine gland : Groups of cells which put substances in the blood. Is a part of the endocrine system.
8. Hormones are chemicals produced by glands.
9. Thyroid, Pituitary, Adrenal glands, Pancreas, Testes, Ovaries.
10. Insulin and glucagon control blood sugar levels.
11. Diabetes: Is a disease in that blood have much sugar.
Eloy J. González 3-A
1. Neuron and types of neurons:
ResponderEliminar-A neuron is an electrically excitable cell that processes and transmits information by electrical and chemical signaling.
-Sensory neurones, motor neurones and interneurones.
2. Parts of a neuron:
-axon, Schwann cells(wich contains myelin), dentrites, cell body(where is situated the nucleous).
3. Synapse:
-In the nervous system, a synapse is a structure that permits a neuron to pass an electrical or chemical signal to another cell, so is a especial gap between two neurons.
4. Elements of the nerve system:
-The nerves, the brain, the spinal cord, the cerebellumand the spinal bulb.
5. White and grey matter.
-Grey matter:is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil , glial cells and capillaries.
-White matter: is one of the two components of the central nervous system and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers.
6. Voluntary and involuntary acts:
-Voluntary action: is produced by conscious choice of an organism. The organism, would in turn also be aware of the action while it is executed. This is the opposite of an involuntary action.
-Involuntary action: An involuntary action is one which occurs without the conscious choice of an organism. If it occurs specifically in response to a stimulus, it will be known as a reflex.
Involuntary actions are opposite of voluntary actions.
7. What is an endocrine gland?
-Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.
8. What is an hormone?
-A hormone is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism.
9. Main glands and hormones:
-Thyroid, Pituitary, Adrenal glands, Pancreas, Testes, Ovaries.
10. Control of rhe hormone action (Negative feedback): insuline an glicagon as an example.
-Insulin: is a hormone produced by the pancreas which is central to regulating carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, muscle, and fat tissue to take up glucose from the blood, storing it as glycogen in the liver and muscle.
-Glucagon: a hormone secreted by the pancreas, raises blood glucose levels. Its effect is opposite that of insulin, which lowers blood glucose levels
11. Diabetes
-Diabetes: Is a disease in that blood have much sugar.One type of diabetes is a diabetes mellitus: is a group of metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin, or because cells do not respond to the insulin that is produced.
1. Neuron and types of neurons:
ResponderEliminar-A neuron is a cell that processes and transmits information by electrical and chemical signaling.
-Sensory neurones, motor neurones and interneurones.
2. Parts of a neuron:
-axon, Schwann cells(wich contains myelin), dentrites, cell body.
3. Synapse:
-The end of one neurone is not connetes to the next. There is always a small gap between them.
4. Elements of the nerve system:
-The nerves, the brain, the spinal cord, the cerebellumand the spinal bulb.
5. White and grey matter.
-White matter: is one of the two components of the central nervous system and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers.
-Grey matter:is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil , glial cells and capillaries.
6. Voluntary and involuntary acts:
-Reflex arcs: .
-Involuntary action:(reflex arcs) protec you. You do it automatically, without thinking
Involuntary actions are opposite of voluntary actions.
7. What is an endocrine gland?
-Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.
8. What is an hormone?
-A hormone is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism.
9. Main glands and hormones:
-Thyroid, Pituitary, Adrenal glands, Pancreas, Testes, Ovaries.
10. Control of rhe hormone action (Negative feedback): insuline an glicagon as an example.
-Insulin: is a hormone produced by the pancreas which is central to regulating carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, muscle, and fat tissue to take up glucose from the blood, storing it as glycogen in the liver and muscle.
-Glucagon: a hormone secreted by the pancreas, raises blood glucose levels. Its effect is opposite that of insulin, which lowers blood glucose levels
11. Diabetes
-Diabetes: Is a disease in that blood have much sugar.
Judith Rois Martínez 3ºB
1. Neuron and types of neurons.
ResponderEliminarA neuron is a cell that makes up the various parts of the nervous system.
There are three tipes of neurons: motor neurons, sensory neurons and interneurons.
2. Parts of a neuron.
Neuron body, dendrites and axon.
3. Synapse.
Synapse is a gap which is localized between neurons. That gap makes this cells able to pass information (a signal) to another neuron.
4. Elements of the nerve system.
The brain, the spinal cord and the central nervous system.
5. White and grey matter.
The white matter is the group of axons which is in the interior of the encephalon and in the exterior of the spinal cord.
The grey matter is the group of axons which is in the codia of the encephalon and in the interior of the spinal cord.
6. Voluntary and involuntary acts.
A voluntary action is an action which you yourself initiate by your own conscious. Our brain sends impulses from it to the muscles or glands. This action is controled by us, so is known as a voluntary action.
Involuntary actions as their name suggest, are total opposites of voluntary actions, because reflex actions are not under our control. In this case, your spinal cord takes total control, without our own conscious, so the action is involuntary.
7. What is an endocrine gland?
Is a cell which puts substances in the blood. Is a part of the endocrine system.
8. What is an hormone?
Hormones are chemicals produced by glands. Small amounts of these chemicals are carried around the body in the blood.
9. Main glands and hormones.
Pituitary, thyroid, adrenal glands, pancreas, testes (male) and ovaries (female).
10. Control of the hormone action (Negative feedback):
insuline an glicagon as an example.
Insulin and glucagon are two hormones which regulate the blood glucose concentration. When the blood glucose level is high, our pancreas secretes insulin to lower the concentration, and when we have low blood sugar, the pancreas secretes glucagon, and this hormone causes a release glucose to the blood from the liver, and the process begins again.
11. Diabetes.
Diabetes is a disease in that your blood has a high level of sugar.
Inés Cameselle Quintas, 3ºA
10 is better as well:
Eliminar10. Control of the hormone action (Negative feedback):
insuline an glicagon as an example.
Hormone regulation is mostly done by negative feedback. In negative feedback, a hormone causes an effect. The cells that make the hormone detect this effect, and its production ceases.
Insulin and glucagon are two hormones which regulate the blood glucose concentration. When the blood glucose level is high, our pancreas secretes insulin to lower the concentration, and when we have low blood sugar, the pancreas secretes glucagon, and this hormone causes a release glucose to the blood from the liver, and the process begins again.
1. -A neuron is a cell that processes and transmits information by electrical and chemical signaling.
ResponderEliminar-Sensory neurones, motor neurones and interneurones.
2. -axon(Schwann cells(wich contains myelin)(, dentrites, cell body.
3. Synapse is a gap which is localized between neurons. That gap makes this cells able to pass information to another neuron.
4. The brain, the spinal cord and the central nervous system.
5. White matter: Is a group of axons. In the encephalon and the outside the spinal cord.
Grey matter: Is a group of axons. In the spinal cord and the "codia" of encephalon.
7. Endocrine gland : Groups of cells which put substances in the blood. Is a part of the endocrine system.
8. Hormones are chemicals produced by glands.
9. Thyroid, Pituitary, Adrenal glands, Pancreas, Testes, Ovaries.
10. Insulin and glucagon control blood sugar levels.
11. Diabetes: Is a disease in that blood have much sugar.
Eva Crispín 3ºB
Ainhoa Salgueiro Costas 3ºB
ResponderEliminar