Nervous system Flashcards
(20 cards)
Neuro tissue
Composed of neurons and neuroglia
Neuroglia
Supporting cells for neurons
Central Nervous System
Brain and spinal cord
Perpetrial Nervous system
Everything else
Mylineated Axons
Surrounded by myelin sheath, which is composed of schwann cells
Somatic system
voluntary
Autonomic
involuntary
Symphatic system
fight or flight
Parasymphatic system
rest and digest
Neurons
Made of axons and dendrities
Neurotransmitters
Chemicals released from neurons to trigger a chemical reaction (released from pastsynpatic terminal int synaptic cleft)
Foramen magnum
where spinal cord leaves the skull
Hand nerves
Radial, Median, and ulnar nerve
Ascending nerve tract
body to brain (up)
Descending nerve
brain to body (down)
Oculomotor nerve ( III cranial nerve)
controls the eye movement and pupils
CSF
produced in brains ventricles (cerebrospinal fluid) manages, protects brain and spinal cord, floats in csf
Axillary nerve
Controls minor and deltoid muscles, arm abduction and lateral rotation
Radial nerve injury
Dropwrist
Ulna nerve injury
Claw hand
