BY 30 – Fall 2001

LECTURE 18: The Brain and Cranial Nerves

Study Outline Answers

18.1. Cerebrospinal Fluid (CSF) Circulation

a. ventricles; central canal; ependymal; subarachnoid

b. shock absorber; ionic composition; nutrients; waste products

c. lateral; 3^rd; 4^th; lateral; diencephalon; 4^th

d. 3^rd; interventricular foramen; cerebral aqueduct; lateral apertures; median aperture

e. choroid plexus; ependymal; brain ventricles; 480 mL; 150 mL

f. arachnoid villi; dural sinuses; hydrocephalus

18.2. The Brain Stem

a. medulla oblongata (= medulla); pons; cerebellum; midbrain

b. medulla; spinal cord; pyramids; ventral; decussation; left

c. gracilis; cuneatus; primary afferent

d. cardiovascular; respiratory; heart; blood vessels; breathing rhythm

e. XII; XI; X; IX; VIII

f. lower part of the 4^th ventricle

g. pons; VIII; VII; VI; V

h. upper part of the 4^th ventricle

i. cerebellum; gray; white; cortex; tracts

j. cerebellum; intended

k. midbrain; cerebral peduncles; tectum; superior colliculi; inferior colliculi; superior colliculi; inferior colliculi; auditory

l. substantia nigra; red nucleus; III; IV

m. reticuluar formation

n. cerebral aqueduct

18.3. The Diencephalon

a. thalamus; hypothalamus

b. thalamus; cerebral cortex; interneurons

c. hypothalamus; autonomic nervous; endocrine

d. control of the autonomic nervous system; control of the endocrine system; regulation of eating and drinking; control of body temperature

e. pituitary; other endocrine glands; hypothalamus

f. hunger; digestive; thirst; extracellular

g. blood; setpoint

18.4. The Cerebrum

a. cerebrum; cortex

b. gyri; fissures; sulci; longitudinal fissure; hemisphere; corpus callosum

c. frontal; parietal; temporal; occipital; bones

d. central

e. lateral

f. parieto-occipital

g. basal ganglia

h. limbic