Spinal tracts - Study guides, Class notes & Summaries

Meninges membranes that encase the CNS Dura mater ◦is the outer and toughest layer Arachnoid layer is the middle layer with a spider web-like vascular system Pia mater ◦is the innermost layer that rests directly on the brain and spinal cord Cerebrospinal fluid plasma like liquid that fills the space between the arachnoid and the pia mater layers to provide additional cushion and support to the CNS Neural tissue consists of two types of cells - neurogli...

CNS Exam 3 Questions & Answers 2024/2025 Central Nervous System - ANSWERSWhat does CNS stand for? Brain and Spinal Chord - ANSWERSWhat makes up the central nervous system? Sensory (afferent) - ANSWERSAscending Tracts. What neurons ascend to the brain? Motor (efferent) - ANSWERSDescending Tracts: What neurons descend down the spinal chord and out through the nerves? Neurons and Neurogila - ANSWERSTissues of the nervous system is composed of two types of cells: Neurons - ANSWE...

Cavities inside the skull - Answer- Anterior/middle/posterior fossa Cranial bones - Answer- Frontal, occipital, sphenoid, ethmoid (unpaired). Parietal & temporal (paired). Mental protuberance - Answer- chin bone MCA supply of the cerebral cortex - Answer- Hand + face/mouth/auditory Cranial nerves - Answer- -12 pairs (Mixed fibers: sensory/motor/both). -Emerge @ irregular intervals from the brain. -Nuclei displacement: Motor = medial Sensory = lateral Meckle's Cave - Answer- De...

BPK 207 Final exam Actual Questions and Answers | 100% Verified and Updated What are the major divisions of the CNS - Answer ️️ -Cerebrum, diencephalon, brainstem, cerebellum & spinal cord Cerebrum - Answer ️️ -consists of cerebral cortex, w/continuous layer of grey matter responsible for higher functions of the CNS. Also contains subcortical structures such as the hippocampus (memory and navigation), amygdala (memory, emotion like fear and anxiety) and some of the basal ganglia. ...

Which professionals can make a medical diagnosis? correct answers Medical Dr Excitatory inputs to a neuron correct answers brings target neuron closer to threshold inhibitory inputs to a neuron correct answers takes target neuron further from threshold BRAIN LOBES AND FUNCTIONS correct answers *frontal - voluntary movement, cognition *parietal - sense of taste, touch, movement *temporal - hearing & memory processes *occipital - vision BASIC NEURAL STRUCTURES CNS and PNS corre...

MUSCLE FIBERS initiation of skeletal muscle contraction - Answer 1. Events in the CNS: areas of the brain responsible for voluntary movement and the descending tracts in the spinal cord. 2. Events in neuromuscular junction: is a point of synaptic contact b/w somatic motor neurons and individual muscle fibre. 3. Excitation- contraction coupling: an AP initiated in the skeletal muscle fibre results in an increase in intracellular Ca2+. 4. Ca2+ signal 5. Contraction relaxation cycle: broken...

What happens when blood supply is cut off from the brain? Ans: unconsciousness with in 5-8sec Neuronal activity stops in less than 1 minute Irreversible brain damage within 4-6 minutes What makes up the circle of willis Ans: Veterbral arteries combine to form the basilar artery gives rise to the posterior cerebral artery, the posterior comunicating artery connects that to the internal carotid artery which branches into the middle and anterior cerebral arteries and the anterior communica...

BIOS 1300 FINAL EXAM (2023/2024) ALREADY PASSED where does the spinal cord end in an adult L1-L2 what is inferior to the end of the spinal cord cauda equina how many spinal nerves for each section 8 cranial, 12 thoracic, 5 lumbar, 5 sacral, 1 coxxygeal why are the spinal nerves mixed nerves? because they contain both motor and sensory 4 parts of gray matter anterior horns, posterior horns, lateral horns, gray commisure what in the gray matter contains the motor nuclei? anterior horns what ...

NBCE BOARD EXAM GUY'S SPINAL ANATOMY REVIEW QUESTIONS AND ANSWERS, GRADED A+ The cerebrum is part of what secondary developmental division of the brain? - -Telencephalon All thalamic structures are part what secondary developmental division of the brain? - - Diencephalon The midbrain, including the oculomotor complex and substantia nigra, are parts of what secondary developmental division of the brain? - -Mesencephalon The pons and cerebellum are parts of what secondary developmental di...

NM3: Vestibular questions and answers functions of vestibular system - answer-1. gaze stabilization = VOR 2. postural control = VSR - provides sensory input regarding position and motion of the head - role in controlling position of body's COM - role in stabilizing and orienting head /c respect to gravity - both a sensory and motor system VOR (vestibulo-ocular reflex) - answer-- gaze stabilization during head motion - compensatory eye mvmts - allows clear accurate vision on a target du...