Sheep Brain- Midsaggital cut

Question 1

Thalamus

Answer 1

-Input from all major senses :Eye, ear, tongue, skin different nuclei
- Synchronization of activity in brain
-Massa intermedia two parts of thalamus joined

Question 2

Hypothalamus

Answer 2

-Autonomic functions reproduction, feeding, thermoregulation, social bonding
-Production of hormones
-Change in Pituitary function and alter behavior

Question 3

CORPUS CALLOSUM

Answer 3

-Nerve fibers thick 200–250 mil contralateral axon projections
-Posterior splenium and anterior genu
-Communication between right and left motor, sensory, cognitive info

Question 4

FORNIX

Answer 4

• Bundle axons
  -Output from hippocampus loops around thalamus, projects to mammillary bodies
• Memory formation

Question 5

CINGULATE GYRUS

Answer 5

-Superior to corpus callosum
-supervision of attention, emotional responses,
-addiction

Question 6

CEREBELLUM

Answer 6

-Sensory information from muscles and joints integration from head and ear
-Arbor vitae: white matter
-Controls coordination, posture, balance

Question 7

COLLICULUS

Answer 7

-In midbrain/metencephalon
-Inferior: auditory senses
-Superior: visual senses

Question 8

PINEAL GLAND

Answer 8

• Endocrine gland produces melatonin
  -Sleep wake and seasonal cycles
  -Right above thalamus