APP 2 Flashcards
What are the two main parts of the nervous system?
Autonomic
Somatic
What does the Somatic Nervous System deal with?
Skeletal (voluntary) Muscle
and the Skin over it
What does the Autonomic Nervous System deal with?
Involuntary Internal Organs
Blood Vessels
Do somatic and autonomic nerve cells ever travel in the same nerves?
Yes
What does the Nervous System do?
Monitors information from external and internal environments and organises a response.
Name two places a ‘decision’ can be made in the Nervous System.
Brain
Spinal Cord
What are nerve cells (neurones) stimulates by?
Any form of energy
List 7 somatic sensations.
Heat Cold Pressure Vibrations Pain Proprioception Touch
List 5 special senses
Vision Hearing Taste Smell Blance
Why are we able to detect different types of sensations
Because we have different types of receptors on the end of our nerve cells.
What is the spinal cord largely made up of?
Nerve cells going up and down
Cross connections
Supporting tissue
Which kind of neurones go up the spinal cord and which sort go down the spinal cord?
Sensory go up
Motor go down
How many neurones are there in the sensory pathway to the cortex of the brain?
3
How many neurones are there IN the somatic motor pathway from the cortex of the brain to the muscle?
2
In which side of the brain are sensations of the right side of the body perceived?
Left
Which side of the brain controls voluntary movements on the left side of the body?
Right
What does efferent mean?
Motor
What does afferent mean?
Sensory
What type of neurone goes into the back of the spinal cord?
Sensory
What type of neurone goes out of the front of the spinal cord?
Motor
What is the dorsal root ganglion?
Swelling where the cell bodies of the sensory neurones are located
What does the term ‘ganglion’ mean?
Swelling
A nerve cell may be a meter or more long: true or false?
True
All the plexi are formed from the ventral primary divisions of the peripheral nerves: true or false?
True
What is a plexus?
Where nerves are grouped together as they cross over
Where in the body is the brachial plexus?
Behind the Clavicle
What are the 5 main nerves that emerge from the brachial plexus?
Musculocutaneous Axillary Radial Median Ulnar
