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24 Cards in this Set
- Front
- Back
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What is the function of meninges? |
They are three protective membranes surrounding the brain and spinal cord (acts as a buffer, allows fluid to circulate) |
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What is the function of Cerebrospinal fluid? |
Acts as a shock absorber and transport medium for nutrients and waste |
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What is the Blood-brain barrier and it's function? |
It is meninges which prevent direct circulation of blood through the cells of the brain and spinal cord. They form a barrier which blocks toxins and infectious agents. Glucose, oxygen and lipid soluble substances can still pass through the barrier by special transport mechanisms. |
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What's the function of the Cerebellum? |
It is unconscious control of posture, reflexes, body movements and fine voluntary motor skills. It receives information from proprioreceptors (coordination, where your muscles are) |
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What is the function of the Medulla Oblongata? |
It controls autonomic, involuntary responses (eg heart rate) and connects the brain and spinal cord. |
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What's the function of Pons? |
They're a relay center between the neurons in the two hemispheres of the brain, cerebellum, and the rest of the brain. |
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What's the function of the Midbrain? |
It's situated above the pons in the brainstem. It relays visual and auditory information between different areas and plays an important role in eye movement and control of skeletal muscles. |
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What's the function of the Thalamus? |
It is the relay station of the brain. It coordinates information between the forebrain and hindbrain as well as between the sensory system and the cerebellum. |
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What is the function of the Hypothalamus? |
It regulates the body's internal environment and certain aspects of behaviour. Neurons control the increase/decrease of blood pressure, heart rate, body temperature, basic drives (thirst, hunger) and emotion. *major link between nervous and endocrine systems* |
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What's the function of the Cerebrum? |
It's the largest portion of the brain which contains centers for intellect, memory, consciousness and language. It also interprets and controls responses to sensory information. |
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What does the Cerebral cortex contain? |
Internal white matter and outer grey matter. |
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What increases the brains surface area? |
The convolutions and fissures in the cerebrum. |
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What is the Right Hemisphere of the cerebrum responsible of? |
Holistic thinking, artistic abilities, visual-spatial skills. |
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What is the Left Hemisphere of the cerebrum responsible of? |
Sequential and logical thinking, linguistic and mathematical skills. |
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What's the function of the Occipital Lobe? |
It receives and analyzes visual information. Damage may result in a person being able to see objects but not recognize them. |
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What's the function of the Temporal Lobe? |
Auditory reception, it understands speech and retrieves visual and verbal information. |
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What's the function of the Parietal Lobe? |
It processes sensory information from the skin. Is also able to process information about body position and orientation. |
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What's the function of the Frontal Lobe? |
It integrates information from other parts of the brain. Is in charge of reasoning, critical thinking, memory personality, speech. Also contains motor areas that control various aspects of precise, voluntary motor movement. |
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What's the function of the Spinal Cord? |
It carries sensory information from the effectors to the brain. Motor nerves then carry information from the brain to the effectors. |
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What is the grey matter made of in the spinal cord? |
It is in the center and consists of unmyelinated axons and cell bodies of motor neurons. |
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What is the white matter in the spinal cord made of? |
It is on the outside and consists of myelinated nerve fibers of interneurons (connects brain and spinal cord) |
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What are Sensory receptors? |
They are nerve endings and cells that detect sensory information. |
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What is Sensory Adaptation? |
When the brain filters out repeating or unimportant information. |
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What are the different types of Sensory Receptors? |
1. Photoreceptors (stimulated by light energy) 2. Chemoreceptors (stimulated by certain chemicals eg olfactory cells which detect chemical odors) 3. Mechanoreceptors (responds to some form of pressure eg proprioreceptors - body position) 4. Thermoreceptors (in the skin, detects heat and cold) |
