Neuroscience, Behavioural and Social Science Flashcards
(188 cards)
What are the 2 parts of the cranium?
Neurocranium
Viscerocranium - facial bones in ant prt of cranium
What are bones in the neurocranium?
Skullcap/calvaria, Cranial/basicranium, Intracranial
Singular - Frontal, Ethmoidal, Sphenoidal, Occipital
Paired - Temporal, Parietal
What are the 7 bones in the viscerocranium?
Singular - Mandible, Vomer
Paired - Maxillae, Inf nasal cochlea, Zygomatic, Palatine, Nasal, Lacrimal
What is the only moveable joint of the cranium?
Mandible
Articulates with cranial base - temporomandibular joint
What are the regions of the brain?
Cerebral hemisphere - L + R, connect by corpus cavernosum
Diencephalon/Thalamus
Cerebellum
Brain stem: Midbrain, Pons, Medulla oblongata
What are the brain lobes?
Frontal lobe Occipital lobe Cerebellum Parietal lobe Temporal lobe
What is the largest paired artery that supplies the meninges + origin?
Middle meningeal artery
Branch of maxillary artery, terminal branch of external carotid artery
What is the course of the middle meningeal artery?
Through foramen spinosum to supply dura mater + calvaria
Beneath pterion where skull v thin
Where is CSF formed?
Ventricles from choroid process
Where does CSF exit from?
Ventricular system via openings in roof of 4th ventricle ==> sub arachnoid space
How is CSF reabsorbed?
Via arachnoid granulations ==> systemic veins
What are N.T types?
Biogenic amides e.g. AcH, NO, adrenaline
AA e.g. glutamate
Peptide e.g. endorphins, somatostatin
Other e.g. ATP, NO
What is:
a) White matter?
b) Grey matter?
How differently arranged from brain and body?
a) Myelinated axons (stained black)
b) Cell bodies, dendrites, axons
White matter:
On outside in body
On inside in brains
What are the 4 types of neurons?
Projection neurons
Motor neurons
Peripheral sensory neurons
Local interneurons
What does:
a) Multipolar
b) Pseudounipolar
mean in terms of neurons and what types of neurons are these?
a) Each cell contains single axon + multiple dendrites - motor + local interneurons
b) Axon split ==> 2, 1 for dendrites to receive sensory info, other transmit info to spinal cord - sensory
What is prosopagnosia?
Face blindness
What are the different cortexes of brain?
Frontal lobe - motor (in front of central sulcus)
Parietal lobe - sensory/somatosensory (behind central sulcus)
Temporal lobe - hearing
Occipital - vision
Prefrontal lobe - cognition
What 2 ways does vision pathway split in the brain?
Dorsal attention - executive control of attention, where?
Ventral attention - recognition of salient features, what?
What cranial nerves are present in:
a) Midbrain?
b) Hindbrain?
a) III, IV
b) V-XII
Where is the:
a) Hypothalamus
b) Thalamus
located in relation to diencephalon?
a) Ventral diencephalon
b) Dorsal diencephalon
What is the function of the:
a) Basal ganglia?
b) Cerebellum?
a) Reward memories, modulate response of thalamus
b) Error calculation
What is locked in syndrome?
Damage to thalamus after stroke
Paralysis of body + most facial muscles
Consciousness remains + can move eyes
What is anencephaly?
Rostral head of neural tube fails close
Absence big portion of skull, scalp and brain
What is craniorachischisis?
Most severe neural tube defect
Both brain + spinal cord remain open