BIO 3350 - Final Exam Review Questions
And Answers
Features of the cerebral cortex - answer 1. cell bodies in layers
2. top layer underneath pia mater is layer 1
3. apical dendrites make multiple branches
4 parts of the CNS - answer 1. Cerebrum
2. Cerebellum
3. Brain Stem
4. Spinal Cord
What is the telencephalon composed of? - answer - is the cover
- cerebral cortex
- basal ganglia
- cerebral hemispheres
What is the mesencephalon composed of? - answer tectum and tegmentum
What is the diencephalon composed of? - answer - mid-cover
-thalamus
- hypothalamus
What is the rhombencephalon composed of? - answer metencephalon (pons) and
myelencephalon (medulla)
- involves autonomic and motor functions
What is the thalamus? - answer relay station
What is the hypothalamus? - answer chemical control of body
What is the tectum composed of? - answer superior (eye movement) and inferior
colliculus (auditory response)
What is the tegmentum? - answer controls some motor functions, regulates awareness
, and attention and some autonomic functions
What are the ventricles of the brain? - answer CSF- filled caverns & canals in brain
What is the choroid plexus? - answer specialized tissue in ventricles that secretes CSF
What is the meninges? - answer the three membranes (the dura mater, arachnoid, and
pia mater) that line the skull and vertebral canal and enclose the brain and spinal cord.
periventricular zone - answer - bordering the third ventricle
- neurosecretory neurons
- circadian rhythms
Thermoregulation - answer Process of maintaining an internal temperature within a
tolerable range.
negative feedback (homeostasis) - answer goal is to keep internal conditions in a normal
range
posterior lobe of pituitary gland - answer - secretes antidiuretic hormone and oxytocin
- neurohypophysis
- nerve terminals secrete hormones into bloodflow
Oxytocin - answer A hormone released by the posterior pituitary that stimulates uterine
contractions during childbirth and milk ejection during breastfeeding.
letdown reflex - answer sensory stimuli reach cortex
Vasopressin (ADH) - answer makes kidneys secrete renin into bloodstream
- under conditions of low BP, sensitive hypothalamic neurons are activated and secrete
vasopressin to bloodstream
What is renin? - answer cleaves & makes angiotensin II
Angiotensin II - answer increases blood pressure by stimulating kidneys to reabsorb
more water and by releasing aldosterone
anterior lobe - answer adenohypophysis
parvocellular nerve terminals - answer act indirectly to promote secretion of the final
hormone (ACTH) that exerts functions to whole body
CRH (corticotropin releasing hormone) - answer stimulates release of ACTH
ACTH (adrenocorticotropic hormone) - answer stimulates secretion of hormones by
adrenal cortex
And Answers
Features of the cerebral cortex - answer 1. cell bodies in layers
2. top layer underneath pia mater is layer 1
3. apical dendrites make multiple branches
4 parts of the CNS - answer 1. Cerebrum
2. Cerebellum
3. Brain Stem
4. Spinal Cord
What is the telencephalon composed of? - answer - is the cover
- cerebral cortex
- basal ganglia
- cerebral hemispheres
What is the mesencephalon composed of? - answer tectum and tegmentum
What is the diencephalon composed of? - answer - mid-cover
-thalamus
- hypothalamus
What is the rhombencephalon composed of? - answer metencephalon (pons) and
myelencephalon (medulla)
- involves autonomic and motor functions
What is the thalamus? - answer relay station
What is the hypothalamus? - answer chemical control of body
What is the tectum composed of? - answer superior (eye movement) and inferior
colliculus (auditory response)
What is the tegmentum? - answer controls some motor functions, regulates awareness
, and attention and some autonomic functions
What are the ventricles of the brain? - answer CSF- filled caverns & canals in brain
What is the choroid plexus? - answer specialized tissue in ventricles that secretes CSF
What is the meninges? - answer the three membranes (the dura mater, arachnoid, and
pia mater) that line the skull and vertebral canal and enclose the brain and spinal cord.
periventricular zone - answer - bordering the third ventricle
- neurosecretory neurons
- circadian rhythms
Thermoregulation - answer Process of maintaining an internal temperature within a
tolerable range.
negative feedback (homeostasis) - answer goal is to keep internal conditions in a normal
range
posterior lobe of pituitary gland - answer - secretes antidiuretic hormone and oxytocin
- neurohypophysis
- nerve terminals secrete hormones into bloodflow
Oxytocin - answer A hormone released by the posterior pituitary that stimulates uterine
contractions during childbirth and milk ejection during breastfeeding.
letdown reflex - answer sensory stimuli reach cortex
Vasopressin (ADH) - answer makes kidneys secrete renin into bloodstream
- under conditions of low BP, sensitive hypothalamic neurons are activated and secrete
vasopressin to bloodstream
What is renin? - answer cleaves & makes angiotensin II
Angiotensin II - answer increases blood pressure by stimulating kidneys to reabsorb
more water and by releasing aldosterone
anterior lobe - answer adenohypophysis
parvocellular nerve terminals - answer act indirectly to promote secretion of the final
hormone (ACTH) that exerts functions to whole body
CRH (corticotropin releasing hormone) - answer stimulates release of ACTH
ACTH (adrenocorticotropic hormone) - answer stimulates secretion of hormones by
adrenal cortex
