the brain Flashcards
1
Q
what is the nervous system?
A
- a complex communication system
- it reveives messages about our enviroment, monitors our body and sends messages to control what we do
2
Q
what is the central nervous system?
A
- made up of the brain and the spinal cords
3
Q
what is the peripheral nervous system?
A
- made up of all our other nerves
- autonomic (automatically controls actions of organs)
- somatic (controls coluntary movements of skeletal muscles)
4
Q
what are the the three main physical sections of the brain?
A
- hindbrain
- forebrain
- midbrain
5
Q
what is the forebrain?
A
- thoughts and reason
- motivation, emotion, and action
- cerebral cortex
- thalamus
- hypothalamus
6
Q
what are the functions of the cerebral cortex?
A
- Sensory, cognitive, and motor functions
- Conscious experiences
- Voluntary actions
- Language and intelligence
7
Q
what are the functions of the thalamus?
A
- redirects sensory input travels to the appropriate areas of the cortex.
8
Q
what are the functions of the hypothalamus?
A
- motives and emotions
9
Q
what is the midbrain?
A
- influences complex behaviours such as defense, aggression, or reproduction
- regulates consciousness
10
Q
what is the hindbrain?
A
- Controls the reflexes for orienting the eyes and ears (attention) (sensory control)
- Influences wakefulness, arousal level, and attention
- Muscle control and cardiac responsiveness
- pons
- cerebellum
- medulla
11
Q
what is the medulla?
A
- controls breathing and heart rate
12
Q
what is the cerebellum?
A
- receives sensory input from all sensors, regulates balance, postural control, fine movement, and coordination.
13
Q
what is the pons?
A
- is a relay station between the cerebrum and cerebellum
14
Q
what are the two hemispheres of the brain?
A
- left
- right
15
Q
what is the corpus callosum?
A
- large band of neural fibers
- connects the two brain hemispheres
- carries messages between the hemispheres
