Neural anatomy Flashcards
(42 cards)
What are the two types of nervous systems?
Central nervous system and Peripheral nervous system
What happens at the CNS?
Decision making
How many nerves are there from the brain and how many from the spinal cord?
12 pairs of cranial nerves and 31 peripheral spinal nerves
What is the cerebral hemispheres?
The two halves of the brain
What 2 components make up the diencephalon?
Thalamus and hypothalamus
What does sensory receptors refer to?
Touch, pressure, pain, heat, etc
What does motor visceral refer to?
It refers to organs working unconsciously
What is the somatic motor nerves job?
They consciously move to allow muscles to contract
What is the difference between the sympathetic and parasympathetic nervous system?
The sympathetic nervous system is causing the fight/flight response but the parasympathetic nervous system is the rest and digest system
What are the 3 protective layers of the brain called?
Meninges
What is the order of the 3 layers of the meninges?
The pia mater is closest to the brain, the arachnoid mater is the middle layer and the dura mater is the top layer under the skull
Where is the cerebrospinal fluid?
This is in the subarachnoid space of the brain and the spinal cord
What is the gray matter vs white matter?
The gray matter is the area of the brain compromised of cell bodies and it processes information but the white matter is made of axons
What lobe is at the front and what does it do?
The frontal lobe which has a prefrontal and primary motor cortex which consciously initiates movement, decision making and controlling movements
What lobe is right next to the frontal lobe and what does it do?
The parietal lobe is the somatosensory cortex and it is consciously being aware of sensory information e.g. touch, pain.
What lobe is at the back of the brain and what does it do?
The occipital lobe is the visual cortex and this is where sight is made sense of i.e. processes visual information.
What is the lowest lobe of the brain and what does it do?
The temporal lobe is the auditory cortex where we make sense of sound i.e. involved in hearing, understanding language
What are the 3 main things the cerebellum maintains?
Tone, posture and balance
What is the order of the 3 components in the brain stem?
Midbrain, pons and medulla oblongata
What is the brain stem important for?
Breathing rhythms, heart rate and reflexes as the spinal nerves come from here
Where is the Wernicke’s area and what does it do?
In temporal lobe and is the area to understand speech
Where is the Broca’s area and what does it do?
The frontal lobe and it is the area to produce speech
What circulation does the basilar artery control?
Posterior circulation
What 3 things does the mid brain do?
It processes visual and auditory information, generates reflexes and maintains consciousness
