Nervous System Basics Flashcards
(39 cards)
2 main functional parts of the Nervous system
Autonomic
Somatic
Somatic nervous system?
Voluntary system controls
Skeletal muscles, skin, (contraction and reflex)
Made up of sensory (Afferent) and motor (Efferent) nerurones
Part of the peripheral nervous system
Nervous system responsibilities
Monitor internal and external responses and makes a response accordingly
Decisions are made in the?
Cortex (brain) plus along the spinal cord and in the gut
Neurones stimulant
Change and force in environment,
Sensory nerve endings
5 special senses
Vision Hearing Taste Balance Smell
Detect sensations via
Through different types of receptor in end of nerve cells
Make up of spinal cord
Cross connection, supporting tissue and nerves travelling up and down
Which neurones go up and which go down the spinal cord
Sensory - up
Motor - down
How many neurones in the sensory pathway to cortex of the brain
3
Parts of Peripheral nervous system
ANS & VNS
Autonomic and visceral nervous system
Efferent
Out going - motor neurones
have an effect
Afferent
In coming .sense - assess
Sensory neurones
Ganglion means
Swelling
7 Somatic sensations
Touch Pressure Vibration Temperature Pain Proprioception (awareness of where your body is in space)
How many neurones in the somatic motor pathway to cortex
2
What neurones are in the back of the spinal cord
Sensory
Neurones in front of spinal cord
Motor
Motor neurones also go out the side
What’s Dorsal root ganglion
Group of nerves clustered together.
- found in sensory neurones
All plexi are formed from the central primary division of the peripheral nerve.
True
Plexus
Singular of plexi . Connection and Crossing over of neurones
Location of brachial plexus
Behind the clavicle and in front of the first rib
5 main nerves from the brachial plexus
Radial, musculocutaneous, ulnar , axillary, median
What do Autonomic nerves control and provide another name?
Involuntary nerves (visceral VNS)- controls smooth muscles, blood vessels, heart, and all other organs, sexual Organs
Forms part of the peripheral nervous system