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Imaginary line drawn through the spinal cord up to the fron of the brain
Neuraxis
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Near or towar the head
Anterior
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Near or toward the tail.
Posterior
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Along the neuraxis toward the front of the face
Rostral
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Along the neuraxis away from the front of the face
Caudal
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Toward the back, perpendicular to the neuraxis toward the top of the head or back
Dorsal
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Toward the belly, perpendicular to the neuraxis toward the bottom of the skull or the front surface of the body
Ventral
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Toward the side of the body
Lateral
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Toward the neuraxis
Medial
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Located on the same side of the body
Ipsilateral
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Located on the opposite side of the body
Contralateral
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Cross sections, right right angles to the neuraxis.
Transverse
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Parallel to the ground
Horizontal
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Parallel to the neuraxis and perpendicular to the ground
Sagittal
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Tough connective tissue that covers the CNS. Protective sheaths around the NS. There are three layers.
Meninges
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The outer layer of the meninges, tough thick and flexible. It is unstretchable.
Dura mater
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Middle layer of the meninges. Soft, spongy, web-like layer.
Arachnoid membrane
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Filled with cerebrospinal fluid that is produced by the choroid plexus.
Subarachnoid space
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Inner layer of the meninges. Close to the brain and the spinal cord.
Pia mater
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The PNS has what kind of meninges?
Dura mater and pia mater.
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Brain contains hollow, connected chambers that are filled with cerebrospinal fluid. What are they called?
Ventricles
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The largest ventricles, also called the 1st and 2nd ventricles.
Lateral ventricles
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The ventricle that is the midline of the brain. It is rich in choroid plexus. Becomes a landmark for finding the thalmus. Also a major producer of cerebrospinal fluid.
3rd ventricle
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This connects the 3rd and 4th ventricle
Cerebral aqueduct
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Receives visual information, calcarine fissure.
Primary visual cortex
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Receives auditory information, a lateral fissure.
Primary auditory cortex
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Receives body senses, central sulcus.
Primary somatosensory cortex
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Information processor for primary sensory cortex, perception, memory.
Sensory association cortex
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Processes movements
Motor association cortex
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Involved in formulating plans and strategies
Prefrontal cortex
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Deep grooves found on the surface of the brain. The deepest grooves
Fissure
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Shallower grooves on the brain.
Sulcus
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This groove divides the somatosensory cortex from the motor cortex.
Central sulcus
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Lobe in front of the central sulcus. Cognition and memory.
Frontal lobe
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Area in the brain the has the ability to concentrate and attend, elaboration of thought. Judgment, inhibition. Personality and emotional traits.
Prefrontal area
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Lobe posterior to the central sulcus. Processing of sensory input, sensory discrimination, body orientation, and primary secondary somatic area.
Parietal
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Lobe ventral to lateral fissure. Auditory receptive area and association areas, expressed behaviors, language and memory.
Temporal
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Lobe at the back of the brain. Used for vision.
Occipital
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Includes the cingulate gyrus and corpus collosum.
Limbic cortex
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Part of the limbic system involved with learning and memory
Hippocampus
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Part of the limbic system specific to emotion and memory
Amygdala
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Part of the limbic system that connects axons from the hippocampus to other regions of the brain.
Fornix
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Part of the limbix system that contains parts of the hypothalmus
Mammilary bodies
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Nuclei, deep in the brain, beneath the lateral ventricles. Comprised of the caudate nucleus, putamen, and the global pallidus.
Basal ganglia
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This is involved in smoothing out movement via input from the primary and secondary motor cortex of the somatosensory cortex.
Basal ganglia
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Part of the diencephalon that has 2 lobes connected through the 3rd ventricle via massa intermedic. It is divided into several (nodes?) interonnectin different regions of the brain.
Thalmus
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Areas where we find the dense body of somas interconnecting with dendrites and axons synapsing onto these.
Nuclei
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Part of the thalmus, used for vision.
Lateral geniculate nucleus
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Part of the thalmus that deals with auditory
Medial geniculate nucleus
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The gatekeeper for sympathetic nervous system. The Controls autonomic nervous system and endocrine system
Hypothalmus
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This part of the Diencephalon organizes behavior related to survival, such as food, fluid, mating and instinctual behaviors.
Hypothalmus
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The master gland of the endocrine system that controls functions of other glands.
Pituitory gland
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Section of the pituitary gland that has the growth hormone, prolactin, ACTH, TSH, FSH, LH
Anterior lobe
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Section of the pituitary gland that has endorphine, malanocyte, stimulating hormone
Intermediate lobe
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Section of the pituitary gland that has ADH, oxytocin
Posterior lobe
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Most hormones are secreted by what?
Pituitary gland
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This plays an important role in standing, walking, coordinated movements. It receives information from the visual, auditory, and motor systems. Involved in cognitive functions such as attention and language.
Cerebellum
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This is associated with the auditory system -- balance.
Vestibular system
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Contains nuclei that relay signals from the cerebrum to cerebellum, along with nuclei that deal with sleep, respiration, swallowing, bladder control, hearing, equilibrium, taste, eye movement, facial expression, sensation, and posture.
Pons
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Contains the cardiac, respiratory, and vasomotor centers and deals with autonomic functions like breathing and blood pressure.
Medula oblongata
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Part of the CNS. Motor axons to organs and somatosensory info to the brain. Protexted by the vertebrae.
Spinal cord
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Spinal root that contains info afferent sensory axons.
Dorsal root
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A cluster of sensory neuron somas
Dorsal root
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Spinal root that contains outgoing (efferent) motor axons
Dorsal root
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Nerves from the brain to the head and neck.
Cranial nerves
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Central to the moement of skeletal muscles and convey sensory infor to CNS
Somatic NS
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Controls body functions, smooth muscles, cardiac muscles, glands. Tibetan monks can control it with practice.
Autonomic NS
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Subdivision of the autonomic nervous system with the fight or flight response.
Sympathetic nervous system
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subdivision of the autonomic nervous system that deals with resting and digesting.
Para sympathetic NS
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