Anatomy and Physiology nervous system Flashcards
1
Q
The brain controls?
A
all actions, stores, and processes 5 senses
2
Q
parts of the brain (4)
A
frontal lobe
parietal lobe
occipital lobe
temporal lobe
3
Q
the frontal lobe (8)
A
- controls conscious thought so damage to it can cause personality changes
- recognizing future consequences resulting from current actions
- choosing between good and bad or better and best
- overriding and suppressing socially unacceptable responses
- determining similarities and differences between thing or events
- positioned anterior to the central sulcus
- in the posterior portion of the frontal lobe lies the pre-central gyrus which is also as the somatometer or primary motor cortex; where voluntary motions are processed
- reaches maturity at 20 years old; this is why you are considered an adult
4
Q
parietal lobe (4)
A
- spatial processing and navigation abilities
- positioned posterior to the central sulcus, and the frontal lobe, anterior and super of the parieto-occipital sulcus and superior of the lateral sulcus or sylvan fissure
- receives name from the bone above it- the parietal bone
- in the anterior portion of this lobe lies the somatosensory or primary sensory cortex, it is the sensory system that responds to receptors such as; body position, pain, temperature, touch, taste, auditory, and smell
5
Q
occipital lobe (2)
A
- processes visual images that come from your eyes
- located at the back of the brain
6
Q
temporal lobe (2)
A
- visual memory, object recognition, processing sound and smell, and understanding language
- located inferior to the lateral sulcus or sylvian fissure and is positioned between the frontal and occipital lobe
7
Q
Neuron Dendrite
A
– receive stimulus and carries it impulses toward the cell body
8
Q
Neuron Cell Body with nucleus
A
nucleus & most of cytoplasm
9
Q
Neuron Axon
A
fiber which carries impulses away from cell body
10
Q
Neuron Schwann Cells
A
cells which produce myelin or fat layer
11
Q
Neuron Myelin sheath
A
lipid layer around the axon
12
Q
Neuron Node of Ranvier
A
gaps or nodes in the myelin sheath
13
Q
Neuron Impulses
A
travel from dendrite to cell body to axon
14
Q
Synapse
A
- Junction between neurons
- don’t actually touch
- Neurotransmitters- Chemicals in the junction which allow impulses to be started in the second neuron
15
Q
central nervous system
A
sends out, brain and spine
