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Nervous System test2
Short anwser
Question | Answer |
---|---|
List the three major structures of neurons. | 1. Cell Body 2. Axon 3. Dendrites |
Which section of the cerebrum can only be seen on dissection? | Insula |
What are the four major structures of the brain? | 1. Cerebrum 2. Cerebellum 3. Diencephalon 4. Brainstem |
What are the four major types of neuroglia? | 1. Astrocytes 2. Oligodendrocytes 3. Microglia 4. Ependyma |
What is the function of the hypothalamus? | regulates heart rate, body temp, fluid balance and many endocrine functions. |
Describe the spinal cord? | -transmits sensory impulses -composed of inner gray matter/outer white mater -located in the spinal cord |
What are two types of nerve cells found in the nervous system? | 1. Neurons 2. Neuroglia |
What are three types of neurosis? | 1. Phobias 2. Hysterias 3. Obsessive compulsive disorders |
What does the central nervous system consist of? | -brain -spinal cord |
What is Alzheimer disease? | Progressive neurological disorder characterized by memory loss, and serious mental deterioration. |
What is Parkinson disease? | Progressive neurological disorder affecting the portion of the brain responsible for controlling movement. |
What is cerebrospinal fluid? | Colourless, shock-absorbing fluid that circulates around the brain and spinal cord and provides nutritive substances to the CNS. |
What is the brainstem composed of? | -the midbrain -the medulla -the pons |
What is the function of the pons? | It is a bridge connection the midbrain to the medulla. |
What is the function of the thalamus? | -receives all sensory stimuli except olfactory -receives impulses from the cerebrum and relays them to efferent nerves. |
What are the two main divisions of the nervous system? | 1. Central nervous system 2. Peripheral nervous system |
Describe the parasympathetic nervous system? | -rest and digest -responds when immediate action is not required |
Describe the sympathetic nervous system. | -fight or flight -responds when immediate actions are required |