| A | B |
|---|
| sensory nervous system | system responsible for processing input from the environment. |
| somatic | Controls voluntary bodily functions (consciously controlled), such as controlling skeletal muscles |
| autonomic | Controls involuntary bodily functions (not consciously controlled), such as breathing, the heartbeat, and digestive processes |
| Sensory | receives information |
| Integrative | determines where information is sent |
| Motor | responds to signals |
| central nervous system (CNS) | brain and spinal cord |
| peripheral nervous system (PNS) | Body Nerves that connect to the central nervous system (brain and spinal cord). Connects the central nervous system to the body's organs and limbs. |
| Parasympathetic | rest and digest |
| Sympathetic | fight or flight |
| neurons | functional unit of the nervous system |
| cell body | contains the nucleus and other cell organelles |
| axons | single long fibers, conducts information away from the cell |
| dendrites | shorter, more numerous, receive information |
| neurons | nerve cells |
| Chromatophilic substance | transport system |
| Myelin | insulation surrounding axons |
| Nodes of Ranvier | gaps in the insulation |
| Neuroglial Cells | homeostatic and defensive cells of the nervous system |
| astrocyte | connect blood vessels to neurons |
| microglial | Immune function; digest debris, kills bacteria |
| Oligodendrocytes | make myelin sheath |
| Ependymal Cells | forms membranes around tissue |
| Stimulus | Things that initiate nerve impulses (ex. hot room) |
| Effector | response to stimulus |
| Synapse | Where the nerve impulse is sent (connection of 2 neurons) . |
| Neurotransmitters | Chemicals that transmit signals across a synapse from one neuron to another 'target' neuron |
| motor | Nerve cells responsible for making an action or movement happen. |
| sensory | Nerve cells that transmit information (sight, smell, sound etc.) |
| cerebellum | Region of the brain--coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth, balanced muscular activity - |
| cerebrum | Region of the brain-composed of four lobes: |
| Spinal Cord | Reflexes, relays information to and from body through nerve fibers as electrical impulses |
| Neurotransmitters | Chemicals that help conduct information between synapses |
| Meninges | Thick membranes which cover the brain and spinal cord |
| cerebrum | Larges portion of the fore brain important in thinking, sight, smell, and muscle control |
