BMS11003 WEEK 1 - Tuesday Flashcards
levels of neuroscience, neuroanatomy, nervous system anatomical subdivisions, key tissues of nervous system
give the 7 levels of neuroscience
molecular, cellular, systems, behavioural, cognitive, neuroanatomy, genetics
what does neuroanatomical term anterior/posterior mean
front/back
what does neuroanatomical term rostral/caudal mean
front/back
what does neuroanatomical term dorsal/ventral mean
an animal back/underneath
what does neuroanatomical term medial/lateral mean
close to midline or far away
what does neuroanatomical term superior/inferior mean
top/below
what does the sagittal plane divide
left/right
what does the coronal plane divide
front/back
what does the horizontal plane divide
top/bottom
what is a transverse spinal cord subsection
cut spinal cord horizontally
what is a longitudinal spinal cord subsection
cut spinal cord along length
outline pons structure - midbrain
form bridge between area of midbrain and spinal cord to cerebellum
outline function of cerebellum
little brain (more neurons than those in rest of CNS)
coordinate visual, motor input, spinal cord info to output movements, balance
outline role of medulla
many nuclei for control of autonomic NS (HR, breathing etc)
explain role of cerebrospinal fluid
makes brain life, cushions sudden impacts to prevent brain damage. maintains appropriate ion levels (remove neuron byproduct and ensures enough oxygen, glucose)
outline the structure/layout of ventricles in brain
1 lateral ventricle per cerebral hemisphere. meets in front, comes down to form 3rd above hypothalamus. come down narrow tube into 4th (if blocked = hydrocephalus) near pons, and move down into thin cavity (central canal) which follows down spinal cord center
name 4 subsections of spinal cord
- cervical (+cervical enlargement)
- thoracic
- lumbar (+lumbar enlargement)
- sacral
outline role of cervical spinal cord enlargement
lots of motor neurons for controlling arm/hand muscle, and allow high dexterity
outline role of lumbosacral spinal cord enlargement
many motor neurons needed for controlling leg muscles
what does grey/white matter tend to be made of
grey matter = neuronal cell bodies, glial cell
white matter = neuronal axons
outline afferent and efferent fibres etc
afferent = sensory fibres coming into spinal cord
efferent = motor fibres leaving spinal cord
Dorsal
Afferent
Ventral
Efferent
