3Q: nervous system Flashcards
the nervous system has three basic functions
sensory, integrative, and motor
also connects all body parts by transmitting signals from one part of the body to another. That is why you can react and respond to different situations
nervous system
The nervous system is divided into
central nervous system (CNS) and the peripheral nervous system (PNS).
serves as the processing area of the nervous system
central nervous system
is the part of the nervous system that processes and interprets the signals transmitted to it.
brain
serves as the connection from the brain to the rest of the body
spinal cord
pns is divided to
somatic and the autonomic nervous systems.
includes the motor nerves that connect to the skeletal muscles that function voluntarily.
somatic nervous system
which connect the central nervous system to other parts such as the sensory receptor, the muscles, and the body glands
spinal nerves
which are responsible for many functions such as smell, sight, chewing, taste, hearing, and even the movement of the tongue, the upper eyelids and the eyeballs, the head, and
the shoulders
cranial nerves
regulates the smooth and cardiac muscles as well as other glands. It works involuntarily, which means that it functions independently and is not consciously controlled.
autonomic nervous system
which is activated during physical or emotional stress. It can also be stimulated every time we feel fear,
embarrassment, or anger.
sympathetic nervous system
which functions whenever the body is at rest and recovery. During these periods, the body conserves and restores energy.
parasympathetic nervous system
important part of the nervous system
brain
controls the** left** side of the body; controls different skills such as speaking, writing, numerical, and scientific skills, as well as sign language and reasoning
left hemisphere
left hemisphere controls: s,w,n,ss,sl,r
speaking, writing, numerical, and scientific skills, as well as sign language and reasoning
controls the right side of the body; related to spatial intelligence, pattern and face recognition, as well as musical ability
right hemisphere
right hemisphere controls: si, fr, ma
spatial intelligence, pattern and face recognition, as well as musical ability
controls some voluntary motor functions, different moods, and sense of smell
frontal lobe
- controls most of the senses such as touch and taste; also responsible for controlling pain, body temperature, and balance
parietal lobe