PSYC 387 Test-Questions with Complete Solutions
saggittal cut reveals a ____________view
medial
a horizontal cut reveals a __________ view
dorsal
a coronal cut reveals a ___________ view
frontal
sensory pathways that carry messages from the body toward the brain and spinal cord are
________; motor pathways leading to the body from the brain and spinal cord are _______
afferent, efferent
two sets of inputs and outputs to CNS rom SNS
spinal and cranial nerves to and from sensory organs and the muscles, joints, and skin
why are divisions of the PNS more vulnerable to injury
they lack bony protection (but they can renew themselves after injury by growing new axons and
dendrites
3 meninges of CNS
1. dura mater
2. arachnoid membrane
3. pai mater
, 4 ways the brain and spinal cord are supported and protected from injury/infection
1. enclosed in thick bone
2. meninges
3. CSF cushions shock and sudden press changes
4. BBB limits mvmt of chemicals from the rest of the body into the CNS
brain blood supply
internal carotid arteries (2) and vertebral arteries (2)
anterior cerebral artery (ACA)
medial and dorsal parts of cortex
middle cerebral artery (MCA)
lateral surface of cortex
posterior cerebral artery (PCA)
ventral and posterior surfaces
interneurons
link up sensory and motor neuron activity in the CNS
sensory neurons
transduce sensory info into nervous system activity
motor neurons
saggittal cut reveals a ____________view
medial
a horizontal cut reveals a __________ view
dorsal
a coronal cut reveals a ___________ view
frontal
sensory pathways that carry messages from the body toward the brain and spinal cord are
________; motor pathways leading to the body from the brain and spinal cord are _______
afferent, efferent
two sets of inputs and outputs to CNS rom SNS
spinal and cranial nerves to and from sensory organs and the muscles, joints, and skin
why are divisions of the PNS more vulnerable to injury
they lack bony protection (but they can renew themselves after injury by growing new axons and
dendrites
3 meninges of CNS
1. dura mater
2. arachnoid membrane
3. pai mater
, 4 ways the brain and spinal cord are supported and protected from injury/infection
1. enclosed in thick bone
2. meninges
3. CSF cushions shock and sudden press changes
4. BBB limits mvmt of chemicals from the rest of the body into the CNS
brain blood supply
internal carotid arteries (2) and vertebral arteries (2)
anterior cerebral artery (ACA)
medial and dorsal parts of cortex
middle cerebral artery (MCA)
lateral surface of cortex
posterior cerebral artery (PCA)
ventral and posterior surfaces
interneurons
link up sensory and motor neuron activity in the CNS
sensory neurons
transduce sensory info into nervous system activity
motor neurons
