8727024
Description
Flashcards by Avraelle Brodsky, updated more than 1 year ago
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Created by Avraelle Brodsky
almost 7 years ago
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| Question | Answer |
| Any change or signal in the environment that an organism can recognize and react to is called ______. | Stimulus. |
| The nervous system includes... | your brain, nerves, and spinal cord. |
| individual nerve cells that carry information through your nervous system are called _____. | Neurons. |
| The message that a neuron carries is called a ____________. | Nerve Impulse. |
| A ___________ picks up a stimulus and converts it into a nerve impulse. | Sensory Neuron. |
| An __________ carries a nerve impulse to another_______ or to a motor neuron. Most of your _______ are located in your brain. | Inter neuron. |
| A ___________ sends an impulse to a muscle or gland, enabling it to respond . They carry nerve impulses to muscles and glands. | Motor Neuron. |
| Includes the brain and spinal cord. | Central Nervous system (CNS) |
| Include all the nerves outside of your central nervous system, involves both voluntary and involuntary actions. | Peripheral Nervous system (PNS) |
| The two groups of nerves in the PNS. | Somatic controls voluntary actions. Autonomic controls involuntary actions. |
| Where you think and store memories. | Cerebrum. |
| Controls balance (movement) and coordination. | Cerebellum. |
| Controls involuntary muscles. | Medula. |
| Your brain has about ______ neurons, all of which are ______. | 100 Billion, Inter neurons. |
| The brain stem connects to the __________. | Spinal Cord. |
| A ring that controls the amount of light that enters the eye. | Iris. |
| The opening that lets light into the eye. | Pupil. |
| Then they pass through the ______. | Lens. |
| The ______ contains light sensitive cells that produce nerve impulses. (Located in the back of your eye.) | Retina. |
| These impulses travel through the ______. | Optic Nerve. |
| Four main taste sensations. | Bitter, sweet, sour, salty. |
| Your tongue is covered with tiny bumps called _________. Most _______ contain taste buds. | Papillae. |
| An __________ is a nerve cell that responds to chemical molecules in the air. | Olfactory cell. |
| Most sounds are caused by... | The vibration of air particles. |
| What sense is not like the others and why? | The sense of touch because it's in all areas of your skin. |
| All of our touch receptors are located in the _______, or the inner layer of the skin. | Dermis. |
| One of your most important sensations because it alerts you to danger. | Pain. |
| Your body's two systems that regulate its activities. | Nervous and Endocrine system. |
| Which system regulates short term and long term activities by sending chemicals throughout the body? | Endocrine. |
| A ______ is an organ that produces or releases a chemical. | Gland. |
| A chemical produced by an endocrine gland is called a _______. | Hormone. |
| This kicks in when you're angry, frightened, or excited. | fight or Flight response. |
| Cells that are specialized in a way that enables them to recognize hormone's chemical structure. | Target Cells. |
| Both the nervous and endocrine system work together. The part of your brain that links the two systems in the _______. | Hypothalamus. |
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