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Description
Flashcards by Ishani Sood, updated more than 1 year ago
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Created by Ishani Sood
about 6 years ago
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| Question | Answer |
| What is a reflex? | Reflexes are fast, involuntary, protective biological control systems that link a stimulus to a response? |
| How do reflex actions work? | The central nervous system sends electrical signals to muscles before the brain can pick up the message |
| What is a reflex that can be learned called? | A conditioned response |
| What does the cerebral hemisphere do? | The cerebral hemisphere initiates the action |
| What does the cerebellum do? | The cerebellum controls involuntary actions such as helping you balance, and muscle coordination |
| What does the brainstem do? | The brainstem coordinates involuntary actions such as heart beat, pulse digestion and breathing |
| What is the CNS made of? | The central nervous system is made up of the brain and the spinal cord |
| What is the celebral cortex and what does it do? | The celebral cortex is the outer layer of the brain. It controls voluntary actions |
| Why do voluntary actions take longer than reflex movements? | Voluntary actions take longer than reflex movements because electrical impulses have further to travel |
| What is the cerebrum and what is its function? | The cerebrum is the largest part of the brain. It controls memory, speech and conscious thoughts. It also controls voluntary actions such as walking, running and jumping. |
| What does the left brain do? | The left brain proccesses linear, logical and linguistic thoughts. It also looks for relationships between right and wrong, and cause and effect. |
| What words are associated with the left brain? | - Logic - Linear - Symbolic - Abstract - Analytical - Verbal - Temporat - Rational - Digital |
| What does the right brain do? | The right brain proccesses are non-verbal, non-linear and intuitive. The right brain is often considered the creative side of the brain. |
| What words is the right brain associated with? | - Intuitive - Hollistic - Creative - Analogical - Nonverbal - Nontemporal - Nonrational - Spatial - Synthetic |
| What is neuroplasticity? | The ability of the brain to reorganise neural pathways based on new experiences. The human brain can adapt and conform to internal and external environments to enable survival. The brain can withstand injury and repair itself |
| What is a neuron? | Neurons are specialised cells that conduct electrical impulses through the body. Neurons are ellongated cells consisting of a cell body and long, thin, axon. |
| What is a nerve? | A nerve is a bundle of nerve fibres enclosed within a protective sheath. Nerve fibres are long axons of neurons together with any associated tissues. |
| What is a dendrite and what is its function? | Dendrites are thin projections that extend from the cell body and connect with other neurons, allowing electrical impulses to pass from one to the other |
| What is the myelin sheath? | Axons of most neurons are wrapped in myelin sheath which is an insulated lipid layer |
| What is a sensory neuron and what does it do? | Sensory neurons transmit messages from sensory receptors such as the eyes or nose, to the brain or spinal cord. |
| What do motor neurons do? | Motor neurons transmit messages from the brain and spinal cord to the muscles and gland. |
| What is a synapse? | A synapse is a junction between two neurons across which electrical signals pass. The human body have 500 trillion synapses |
| What is the function of nerve impulses? | Nerve impulses that reach the end of the presynaptic neuron axons stimulate the release of vesicles with neurotransmitters from axons terminal |
| What part of the brain is the largest? | Cerebrum and brain stem |
| What part controls thought and reasoning |
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