Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
SI CNS
Southeastern Institute A&P 9. Central Nervous System
| Question | Answer |
|---|---|
| Central Nervous System (CNS) | Make up of Brain and Spinal Cord, Protected by meninges and cerebrospinal fluid (CSF) |
| Meninges | Protective connective tissue covering in the central nervous system |
| Pia Mater | Innermost layer of meninges |
| Subarachnoid | Space between meninges filled with CSF |
| Arachnoid | Middle layer of meninges |
| Subdural | Space between meninges |
| Dura Mater | Outer most layer of meninges |
| Epidural | Between dura mater & vertebral canal |
| Cerebrospinal Fluid | Supplies CNS w/ oxygen and nutrients, Carries away waste, Shock absorber, Formed in choroids plexus in brain ventricles |
| Spinal Cord | Exits skull through foramen magnum, Goes to L2, Conveys sensory and motor information |
| Sulci | Grooves of the brain |
| Gyri | Ridges of the brain |
| Fissures | Sulci deep enough to divide brain into hemispheres |
| Cerebrum | Largest part of brain which is divided into lobes |
| Frontal Lobe | Motor output, Cognition, Speech production, Broca’s area in left hemisphere |
| Corpus Callosum | Fibrous bundles connecting the 2 hemispheres |
| Cerebral Cortex | Thin gray layer on outer portion of brain |
| Parietal Lobe | Somatosensory, Skin and muscle, Taste |
| Temporal Lobe | Auditory, Olfactory, Wernicke’s - language comprehension in left hemisphere |
| Occipital Lobe | Visual input |
| Right Hemisphere | Controls left side of body, Perception of nonspeech auditory sounds, Melodies, laughing, crying, coughing, Better at spatial relationships |
| Left Hemisphere | Controls right side of body, Language – reception and expressive, Some skilled and general hand movements, Gestering |
| Beta Brain Waves | Wakeful and mental activity |
| Alpha Brain Waves | Relaxed and nonattentive |
| Theta Brain Waves | Drowsiness, dream like, collective unconscious, out-of-body |
| Delta Brain Waves | Deep sleep |
| Diencephalon | Center of brain that contains thalamus & hypothalamus |
| Thalamus | 80% of diencephalon, Sensory info to cerebrum |
| Hypothalamus | Regulates ANS & endocrine by governing pituitary gland |
| Cerebellum | Cauliflower shaped, Posterior and inferior to cerebrum, 2nd largest part of brain, Muscle tone, Coordinates complex movements, Regulates posture and balance |
| Brainstem | Continuous with spinal cord, made up of midbrain, pons and medulla oblongata |
| Midbrain | Nerve impulses from cerebrum to pons, Sensory impulses from spinal cord to thalamus, Controls movement of eyes, head and neck in response to visual and auditory stimulus |
| Pons | Nerve impulse back & forth in cerebellum, Helps control breathing |
| Medulla Oblongata | Most inferior part of brainstem, Sensory and motor between spinal cord and brain,cross-over fibers that switch hemispheres vs. body, Respiratory center, Cardiovascular center, Vasomotor center, 5 pairs of cranial nerves branch from here |
| Blood-Brain Barrier | Semipermeable wall of blood capillaries, Thick basement membrane & neuroglia, Prevent or slow down some chemical compounds & disease causing organisms into brain |
| Considered most vital part of brain | Medulla Oblongata |
Created by:
cmcracken
Popular Anatomy sets