nervous system lab Flashcards
Spaces that hold cerebral spinal fluid:
ventricles
Cerebellum function:
muscle coordination
Thalamus function:
receives input and passes it along cerebellum
Hypothalamus function:
regulates homeostasis
Midbrain and pons function:
relay stattions for sensory and motor input
medulla oblongata function:
reflex and involuntary section
Path of nerve impulses from a sensory receptor to an effector:
axon of sensory neuron to dorsal root ganglion to dorsal horn in gray matter to ventral root to effector.
Why do eyes have a blind spot?
the optic nerve is carrying sensory info and there is an absence of rod and cone cells.
Rod cells:
black and white vision
Cone cells:
color vision
Is the sciatic nerve apart of the CNS or the PNS?
PNS
What part of the brain is divided into left and right hemispheres?
Cerebrum
What portion of the brain looks like a tree in the cross section?
cerebellum
What structures protect the spinal cord?
Meninges, cerebral spinal fluid
What makes the white matter of the spinal cord appear white?
Myelin sheath
What part of the eye refracts and focuses light rays?
Lens
What part of the ear contains sensory receptors for hearing?
Organ of corti
What is the name for the eardrum that picks up soundwaves>
Tympanic membrane
What layer of the skin contains Meisnerr and Pacninan?
dermis
What are the names of the chemorecptors that respond to molecules in air and water>
taste buds and olfactory
What is olfactory?
relates to smell
Temporal lobe:
olfactory. smell
Frontal lobe:
voluntary movement and language
Parietal lobe:
somatosensory info such as pain and teperature
