Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Int. Nervous System
| Term | Definition |
|---|---|
| Nervous System | coordinate the body's system by receiving and sending information; maintaining homeostasis |
| Sensory Input | Sensory receptors monitor changes, called stimuli, occuring inside and outside the body |
| Integration | Nervous system processes and interprets sensory input and decides whether action is needed |
| Motor Output | A response, or effect, activates muscles or glands |
| Nervous System Classifications | Structural and Function |
| Structural classification | Based on the structures of nervous system; CNS & PNS |
| Function classification | Based on the activities of the nervous system; sensory(afferent) division & motor(efferent) division |
| Central nervous system | Interprets incoming sensory information, issues outgoing instructions and integration. Organs: Brain & Spinal Cord |
| Peripheral nervous system | Has nerves that serve as communication lines among sensory organs, the brain and spinal cord, and glands or muscles |
| Spinal Nerves | Carry impulses to and from spinal cord |
| Cranial Nerves | Carry impulses to and from brain |
| Sensory division | (Afferent) Nerve fibers that carry information to the CNS |
| Somatic Sensory Fibers | (Afferent) Fibers that carry information from the skin, skeletal muscles, and joints. |
| visceral Sensory | (Afferent) Fibers carry information about visceral organs: soft internal organs |
| Motor(efferent) division | Nerve fibers that carry impulses away from the CNS organs to the effector organs (muscles & glands) |
| Two Subdivisions of Motor Division | Somatic and Autonomic |
| Somatic nervous system | (Voluntary) controls skeletal muscles |
| Autonomic nervous system | (Involuntary) Automatically controls smooth and cardiac muscles and glands. |
| Autonomic nervous system subdivision | Further divided into the sympathetic and parasympathetic nervous systems. |
| Sympathetic Response | Fight or flight or Freeze |
| Parasympathetic | Rest and digest |
| Autonomic conflict | Both branches activated simultaneously |
| Nervous Tissue | Nervous tissue is made up of two principle cell types, supporting cells and neurons. |
| Supporting cells | They resemble neurons, unable to conduct nerve impulses, and never lose the ability to divide. |
Created by:
oghosh
Popular Anatomy sets