the cns Flashcards
retinas
setchatka
cranial cavity
polost cherepa
the layers of cns
dura mater,aracnoid and pia mater
what is between arachnoid and pia mater?
csf
what is the brain stem function?
controls involuntary actions heart rate, digestion, and sleep e,g, breathing swallowing digestion sleeping walking sensory and motor information integration
what is the function of cerebellum?
coordinates muscles
control balance & posture
what is the function of cerebrum?
voluntary actions as thoughts & memories
senses and speech
what are in the skull?
cerebral cortex cerebellum brain stem basal ganglia retinas limbic system thalamus hypothalamus
what are parts of the brain make up 2 cerebral hemispheres?
cerebral cortex
limbic system
basal ganglia
What connects the 2 hemispheres?
the corpus callosum
what are basal ganglia?
- The “basal ganglia” refers to a group of subcortical nuclei responsible primarily for motor control, as well as other roles such as motor learning, executive functions and behaviors, and emotions.
- play important roles in movement control, posture, and regulating motivation.E.G.Planning and modulation of movement, memory, eye movements, reward processing, motivation
what is the limbic system?
The limbic system is the part of the brain involved in our behavioral and emotional responses, especially for behaviors we need for survival: feeding, reproduction, caring for our young, and fight-or-flight responses.
It plays a role in memory formation and includes parts of the thalamus,hypothalamus and hippocampus.
One important structure within the limbic system is a temporal lobe structure called the amygdala, which is important both for the sensation of fear and for recognizing fearful faces.
what is thalamus?
acts as a gateway to and from the cortex. It receives sensory and motor inputs from the body and also receives feedback from the cortex. The thalamus helps regulate consciousness, arousal(awakening, waking, wakening, arousal), and sleep states.
what is the hypothalamus?
-Below the thalamus is the hypothalamus.
—controls the endocrine system by sending signals to the pituitary gland.(гипофиз)
— is the body’s thermostat—it makes sure the body temperature is kept at appropriate levels.
—Neurons within the hypothalamus also regulate circadian rhythms, sometimes called sleep cycles.
what is the function of CFS (cerebrospinal fluid)?
acts as a cushion and shock absorber.