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Chp 10-Nervous Sys 2
Brain: Davi-Ellen Chabner The Language of Medicine 8th Edition
Question | Answer |
---|---|
The brain controls: | body activities. |
Adult brains weigh: | 3 pounds. |
Sections of the brain: | Cerebellum, cerebrum, thalmus, hypothalmus, pons, medulla oblongoda. |
Sections of the brainstem: | Pons, medulla oblongoda. |
On each side of the brain, there are 4 lobes: | Occipital, Parietal, Frontal, Temporal. |
The thinking area of the brain: | Cerebrum. |
Nerve cells lie in sheets called ______, which lie on the surface of the _____. | the cerebral cortex, cerebrum. |
Sheets of nerve cells lie in folds called: | gyri (convolutions). |
Grooves on the brain are called: | sulci (fissures). |
The brain is divided into two _____. | cerebral hemispheres. |
Lobes of the brain are named for the _____ that overlie them. | cranial(skull) bones. |
The left hemisphere is concerned with what functions? | Language, math functioning, reasoning, analytical thinking. |
The right hemisphere is concerned with what functions? | Spatial relationships, art, music, emotions, intuition. |
The temporal lobe manages what functions? | Hearing, understanding speech, language. |
The frontal lobe manages what functions? | Thought processes, behavior, personality, emotion, body movement, language expression (Broca area). |
The parietal lobe manages what functions? | Body sensations, visual & spatial perception. |
The occipital lobe manages what functions? | Vision, language comprehension (Wernicke area). |
Cerebrum functions: | Thought, judgement, memory, association, discrimination. |
Perception is based on sensory impulses that are received through _______ cranial nerves, when registered in the _____. | Afferent, cortex. |
Spaces/canals in the brain are called: | Ventricles. |
The fluid in the ventricles is: | Cerebrospinal fluid (CSF). |
Cerebrospinal fluid functions: | Protects the brain & spinal cord fromshock, by acting like a cushion. |
Describe CSF: | Clear, colorless, contains lymphocytes, sugar, proteins. |
The procedure to withdraw CSF is: | Lumbar puncture. |
Lumbar puncture is performed for: | Diagnosis, or to relieve pressure on the brain. |
How is a lumbar puncture (LP) performed? | A hollow needle into the lumbar region of the spinal column, below where the nervous tissue of the spinal cord ends. |
CSF is formed where? | Within the ventricles. |
CSF circulates where? | Between the membranes around the brain, and within the spinal cord. |
The _____ gland is located below the _____ area of the brain. | Pituitary, hypothalmus. |
The _____ _____ regulate intentional movements of the body. | Basal ganglia. |
The _____ _____ lies in the center of the brain, and connects the _____ _____. | Corpus callosum, two hemispheres. |
The _____ monitors sensory impluses from the _____. | Thalmus, skin. |
Perception of _____ is controlled by the thalmus. | Pain. |
The hypothalmus contains neurons that control: | Body temperature, sleep, appetite, sexual desire, and emotions such as fear and pleasure. |
The _____ regulates the release of hormones from the _____ gland at the base of the brain. | Hyppothalmus, pituitary. |
The hypothalmus integrates activities of the _____ and _____ nervous system. | Sympathetic, parasympathetic. |
The cerebellum functions: | Coordinate voluntary movements, maintain balance & posture. |
The pons is part of the _____, and means "bridge". | Brainstem. |
The _____ contains nerve fiber tracts that connect the cerebellum & cerebrum with the rest of the brain. | Pons. |
Nerves to the eyes and face lie in the: | Pons. |
The medulla oblongata is part of the: | Brainstem. |
The _____ _____ connects the spinal cord with the rest of the brain. | Medulla oblongata. |
In the medulla oblongata, nerve tracts: | Cross from left to right (criss-cross). |
The _____ side of the cerebrum controls nerve cells on the left side of the body, through the medulla oblongata and down the spinal cord. | Right. |
Nerve cells send out _____ that cross over (called _____)to the opposite of the opposide of the brain. | Axons, decussate. |
The medulla oblongata regulates internal activities of three vital centers: | Respiratory, cardiac, vasomotor. |
In the M.O., the respiratory center controls: | Muscles of respiration in response to chemicals or other stimuli. |
In the M.O., the cardiac center: | Slows the heart rate when it is beating too rapidly. |
In the M.O., the vasomotor center: | Affects (constricts or dilates) the muscles in the walls of blood vessels, influencing BP. |