Seeley's Anatomy Chapter 11-13
subdivisions of the nervous system - ✔️✔️central nervous system ( CNS) and
peripheral nervous system ( PNS)
CNS consist of - ✔️✔️brain and spinal cord
PNS constist of - ✔️✔️sensory receptors and nerves
sensory receptors - ✔️✔️ending of neurons or specialize cells that deal with pain,
temperature, touch, light, sound, and odors
Functions of the Nervous System - ✔️✔️1. Receiving sensory input
2. Integrating information
3. Controlling muscles and glands
4. Maintaining homeostasis
5. Establishing and maintaining mental activity
components of the nervous system - ✔️✔️brain, spinal cord, and nerve receptors
nerves - ✔️✔️a bundle of axons and their sheaths connecting CNS sensory receptors,
muscles, glands
ganglion - ✔️✔️collection of cell bodies outside the CNS
plexus - ✔️✔️extensive network of axons and sometimes neuron cell bodies located
outside the CNS
divisions of the PNS - ✔️✔️sensory division, motor division, somatic, autonomic
sensory division (afferent) - ✔️✔️action potentials form receptors to the CNS
motor division (efferent) - ✔️✔️action potentials from the CNS to effectors ( muscles
and glands)
motor divisions of the PNS - ✔️✔️somatic and autonomic nervous system
somatic nervous system - ✔️✔️- goes from the CNS to skeletal muscles
- voluntary conscious activity
- single neuron system
- cell body within the CNS and axons in the skeletal muscles
subdivisions of the nervous system - ✔️✔️central nervous system ( CNS) and
peripheral nervous system ( PNS)
CNS consist of - ✔️✔️brain and spinal cord
PNS constist of - ✔️✔️sensory receptors and nerves
sensory receptors - ✔️✔️ending of neurons or specialize cells that deal with pain,
temperature, touch, light, sound, and odors
Functions of the Nervous System - ✔️✔️1. Receiving sensory input
2. Integrating information
3. Controlling muscles and glands
4. Maintaining homeostasis
5. Establishing and maintaining mental activity
components of the nervous system - ✔️✔️brain, spinal cord, and nerve receptors
nerves - ✔️✔️a bundle of axons and their sheaths connecting CNS sensory receptors,
muscles, glands
ganglion - ✔️✔️collection of cell bodies outside the CNS
plexus - ✔️✔️extensive network of axons and sometimes neuron cell bodies located
outside the CNS
divisions of the PNS - ✔️✔️sensory division, motor division, somatic, autonomic
sensory division (afferent) - ✔️✔️action potentials form receptors to the CNS
motor division (efferent) - ✔️✔️action potentials from the CNS to effectors ( muscles
and glands)
motor divisions of the PNS - ✔️✔️somatic and autonomic nervous system
somatic nervous system - ✔️✔️- goes from the CNS to skeletal muscles
- voluntary conscious activity
- single neuron system
- cell body within the CNS and axons in the skeletal muscles
