PSYC 3713 Lecture 6 Exam Questions And
Complete Answers
cortex - answer outer layer of the brain
neuraxis - answer an imaginary line drawn through the center of the length of the central
nervous system, from the bottom of the spinal cord to the front of the forebrain
anterior - answer toward the head
rostral - answer toward the forehead or nose
posterior - answer toward the back
caudal - answer away from the front of the face
dorsal - answer top of the head and back
ventral - answer toward the bottom of the skull or the front of the body
lateral - answer away from the midline
Medial - answer Toward the midline of the body
ipsilateral - answer on the same side of the body
Contralateral - answer on the opposite side of the body
horizontal plane - answer a flat crosswise plane, such as the horizon
coronal plane - answer An imaginary plane where the body is cut into front and back
parts.
sagittal plane - answer divides body into left and right
terms used for humans - answer rostral and caudal
terms for animals - answer anterior and posterior
describe the three meninges - answer meninges become fused as we get older to the
bones of the skull
Dura mater: hard mother; outer layer
Arachnoid Membrane: middle, spider like membrane
Impossible to separate from other layers
, Transculent
Pia mater: soft mother
Clings to tissue of brain
Lot of blood vessels
subarachnoid space: Space between layers filled with CSF is made in plexus, flows
thorugh spinal cord/brain
Cushions brain
Buoyance, shock absorbancy
Protective sheaths
dorsal horn - answer a region at the rear of the spinal cord that receives inputs from
receptors in the skin
These bring in sensory info -> e.g. sensory reflexes
ventral horn - answer somatic motor neurons whose axons exit the cord via ventral roots
Motor info comes out here e.g. withdraw hand from a hot surface
what causes meningitis - answer inflamed meninges
Inflamed tissues: meningitis
Some viruses and bacteria can infect brain tissue itself (encephalitis, infection brain
tissue itself) or meninges (meninigitis)
describe the ventricular system - answer consists of 4 ventricles (hollow,
interconnected chambers) that produce and contain CSF
- lateral aqueduct (largest)
- third ventricle (divides the surrounding parts of the brain into symmetrical halves)
- cerebral aqueduct (connects the third and fourth ventricle); contains the chloride
plexus.
Complete Answers
cortex - answer outer layer of the brain
neuraxis - answer an imaginary line drawn through the center of the length of the central
nervous system, from the bottom of the spinal cord to the front of the forebrain
anterior - answer toward the head
rostral - answer toward the forehead or nose
posterior - answer toward the back
caudal - answer away from the front of the face
dorsal - answer top of the head and back
ventral - answer toward the bottom of the skull or the front of the body
lateral - answer away from the midline
Medial - answer Toward the midline of the body
ipsilateral - answer on the same side of the body
Contralateral - answer on the opposite side of the body
horizontal plane - answer a flat crosswise plane, such as the horizon
coronal plane - answer An imaginary plane where the body is cut into front and back
parts.
sagittal plane - answer divides body into left and right
terms used for humans - answer rostral and caudal
terms for animals - answer anterior and posterior
describe the three meninges - answer meninges become fused as we get older to the
bones of the skull
Dura mater: hard mother; outer layer
Arachnoid Membrane: middle, spider like membrane
Impossible to separate from other layers
, Transculent
Pia mater: soft mother
Clings to tissue of brain
Lot of blood vessels
subarachnoid space: Space between layers filled with CSF is made in plexus, flows
thorugh spinal cord/brain
Cushions brain
Buoyance, shock absorbancy
Protective sheaths
dorsal horn - answer a region at the rear of the spinal cord that receives inputs from
receptors in the skin
These bring in sensory info -> e.g. sensory reflexes
ventral horn - answer somatic motor neurons whose axons exit the cord via ventral roots
Motor info comes out here e.g. withdraw hand from a hot surface
what causes meningitis - answer inflamed meninges
Inflamed tissues: meningitis
Some viruses and bacteria can infect brain tissue itself (encephalitis, infection brain
tissue itself) or meninges (meninigitis)
describe the ventricular system - answer consists of 4 ventricles (hollow,
interconnected chambers) that produce and contain CSF
- lateral aqueduct (largest)
- third ventricle (divides the surrounding parts of the brain into symmetrical halves)
- cerebral aqueduct (connects the third and fourth ventricle); contains the chloride
plexus.
