Week 1 Terms Flashcards
(22 cards)
Planes: Sagital
Left/Right
Mylineation
When myelination is present, the axon propogates their signal faster
Left hemisphere
verbal memory, creativity, artistic, abstract
Right hemisphere
Organization, planning, rules
Cerebellum
“The little brain”, located in the back of the brain and responsible for sensory, motor, balance/coordination, memory, learning, emotion
Lobes: Frontal Lobe
problem solving, organization, inhibition, planning
Lobes: Temporal
Contains the limbic cortex, amygdala, and hippocampal formation; processing auditory information, affect, memory, and recognition (Left: verbal, right: nonverbal)
Lobes: Occipital
Near the back of the brain, responsible for vision (most specialized part of the brain)
Lobes: Parietal
Processes somatosensory information (speech, pain, spatial orientation)
Meninges
Contains: dura, arachnoid membrane, and pia mater; located between the skull and the brain; primary function is to help protect the brain
Cerebral Spinal Fluid: purpose
provides cushioning for the brain
Cerebral Spinal Fluid: the process of creation, flow and reabsorption
produced in the ventricles; fills the subarachnoid space, canal of spinal cord, and the cerebral ventricles
Blood brain barrier: cells involved
tight juncture of endothelial cells (and astrocyte feet)
Blood brain barrier: purpose
blocks toxins and bacteria while allowing the passage of water, some gases, and lipid-soluble molecules by passive diffusion; as well as the selective transport of molecules such as glucose and amino acids that are crucial to neural functions
Nervous System Schematic
Nervous system—
- Central
- -Brain
- -Spinal Cord
- Peripheral
- -Autonomic
- –Sympathetic
- –Parasympathetic
- -Somatic
Central nervous system
Made up of the brain and spinal cord
Peripheral nervous system
Everything else! Made up of two parts: autonomic (fight/flight freeze or relaxation) and somatic (senses)
Autonomic
Contains the sympathetic system (responsible for fight or flight) and the parasympathetic system
Sympathetic
Responsible for reacting to stress and engages the fight or flight response to maintain safety.
Responses include: breathing and heartbeat are faster, blood pressure rises, muscles tense, hands and feet are cold and sweaty, mouth becomes dry
Parasympathetic
Responsible for relaxation, digestion, maintaining homeostasis, breathing
Somatic
Part of the peripheral nervous system responsible for the five senses
Circle of willis
A loop of connected blood vessels at the base of the brain that is responsible for supplying blood to the brain. Looping pattern serves a protective role and if there is damage to part of it, the blood can still get to all parts of the brain (it would just be slower)
