Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
Homeostasis |
State of relative stability within the human body |
|
|
Nervous system |
Rapid responses |
|
|
Endocrine system |
Longer term adjustments |
|
|
Central Nervous System |
Brain and Spinal Cord |
|
|
Peripheral Nervous System |
Somatic and Autonomic Nerves |
|
|
Somatic Nerves |
Controlled skeletal muscle bones and skin. |
|
|
Autonomic Nerves |
Controls internal organs muscles and glands |
|
|
Nerves |
A bundle of Neurons |
|
|
Dendrite |
Receive info and always travels towards cell body |
|
|
Axon |
Carries impulses to other Neurons or to effectors and Always travels away from cell body |
|
|
Myelin Sheath / Shwann Cells |
Insulates axon found in PNS & mature CNS axons (white matter) |
|
|
Nodes of Ranvier |
Gaps between Shwann cells in Myelin Sheath |
|
|
Neurilemma |
Regeneration of neuron. Not all cells with Myelin have this and it's not found in brain Neurons |
|
|
Synaptic Terminal |
End Plate |
|
|
Three types of Neurons |
Sensory, Inter, Motor |
|
|
Sensory Neurons |
Carries info from the environment to the Central Nervous System |
|
|
Motor Neurons |
Receive impulses from the central nervous system and carries them to effectors (muscles or glands) |
|
|
Reflex Arc |
No brain coordination = fast - receptor - sensory neuron - interneuron (spinal cord) - motor neuron - effector (muscle or gland) |
|
|
Nerve impulses |
Electrochemical messages created by the movement of ions across a membrane |
