Sheep Brain Anatomy: Ventral with no dura matter

Question 1

TRACT

Answer 1

-Bundle of axons connecting regions WITHIN CNS
-Olfactory tract connects to pyriform/olfactory cortex

Question 2

NERVE

Answer 2

-Bundle of axons connecting regions within PNS
-or PNS to CNS (eg. cranial nerves)

Question 3

MEDULLA OBLONGATA

Answer 3

-First site where sensory info from the periphery goes
-Primary motor neurons
Digestion, breathing, movement

Question 4

PONS

Answer 4

-RELAY STATION
-From Cerebral to Cerebellum
-Cortex affects movement

Question 5

MAMMILARY BODY

Answer 5

-Info from HIPPOCAMPUS
-Connected to Anterior Thalamic Nucleus and Midbrain
-Memory processing

Question 6

OLFACTORY BULB

Answer 6

-Smell from nerves on olfactory epithelium in the nose
-Direct inputs into telencephalon

Question 7

OLFACTORY TRACT

Answer 7

-Bulb to areas including piriform cortex

Question 8

PYRIFORM CORTEX

Answer 8

-Major target of olfactory tract
-Projections to thalamic and hypothalamic nuclei and hippocampus

Question 9

PITUITARY

Answer 9

-Endocrine gland below hypothalamus
-Posterior connected to the hypothalamus through infundibulum/pituitary stalk
-Hormones for stress, growth, blood pressure, reproduction, metabolism, water balance

Question 10

OPTIC CHIASM AND TRACT

Answer 10

-Site at the base of forebrain fibers cross to the opposite side of the brain
-Bundles of axons that travel together are optic tracts

Question 11

INFUNDIBULUM

Answer 11

-Pituitary Stalk
Hypothalamus to the posterior side of the pituitary gland

Question 12

SPINAL CORD

Answer 12

-Encased in the vertebral column
-Signalling from PNS to brain and vice versa